Product
Patsnap Eureka
For R&D, Patsnap Eureka makes reading and utilizing patents & technical documents easy.
Patsnap Eureka AIR
Designed for self-driven R&D workflows. Generate viable solutions, solve complex R&D challenges, empower your innovation with AI.
Patsnap Eureka Materials
Designed for material experts only. Revolutionize your material R&D, from search, analyze, to developing new materials.
Feature
TechResearch
Generate reliable direction feasibility study reports for your R&D in just a few steps.
TechSeek
Discover and master advanced knowledge NOW. Basics, ideas, possibilities, all at once.
TechMind
As an expert in R&D Theories, TechMind can generates customized viable solutions instantly.
TechRisk
Analyze your overall solution with one click, know your potential R&D risks in advance.
TechMonitor
Get weekly tech updates, stay abreast of the latest tech innovations and key insights.
Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
60results about How to "Relieve power supply pressure" patented technology
Efficacy Topic
Property
Owner
Technical Advancement
Application Domain
Technology Topic
Technology Field Word
Patent Country/Region
Patent Type
Patent Status
Application Year
Inventor
Peak shaving control method based on air conditioner aggregation model
InactiveCN107143968AAchieve optimal controlFully excavatedSpace heating and ventilation safety systemsLighting and heating apparatusLoad modelPower grid
The invention relates to a peak shaving control method based on an air conditioner aggregation model. The peak shaving control method based on the air conditioner aggregation model is characterized in that the peak shaving control method comprises the following steps that (1) a load model of single air conditioner is built according to the energy conservation principle and air conditioner running characteristics; (2) unified dispatch and control are conducted on air conditioner groups through load aggregators, the aggregation model of the air conditioner groups is built, and peak shaving potential of an aggregated air conditioner load is evaluated; (3) in the current market, a minimum electric power company dispatching cost is taken as the objective function, and dispatching plans of next-day peak shaving time periods are made; and (4) in the process of real-time dispatching, the profits of the load aggregators and the comfort level of users are considered together as a whole to achieve optimized control of the aggregated air conditioner load. According to the peak shaving control method based on the air conditioner aggregation model, the technical scheme achieves centralized dispatching control over the air conditioner groups, load-side resources are exploited sufficiently, and the investment pressure of power network facilities is relieved.
Owner:SOUTHEAST UNIV
A method and system for orderly charging management of a charging pile
ActiveCN109204036AReduce the impactMeet charging needsCharging stationsElectric vehicle charging technologyPower gridCharging station
The invention discloses a method and system for orderly charging management of a charging pile. The method comprises the following steps: setting the maximum output power of a charging station; dividing the charging pile into two or more charging groups, setting the maximum output power T_P of each charging group and the principle of orderly charging; collecting output power, recorded as R_P of each charging group in real time; sorting the charging level of each charging pile in the charging group; according to the relationship between R_P and T_P, adjusting the output power of the charging pile according to the charging level of the charging pile until the output power meets the requirements. The method and system have the beneficial effects that the orderly charging strategy is used to better guide the power output of the charging equipment, the utilization ratio of the charging equipment is effectively improved, and the power supply pressure of the power grid is alleviated.
Owner:SHANDONG LUNENG SOFTWARE TECH
Electric-power intelligent home control system
InactiveCN103576645AFull controlAlleviate security concernsTotal factory controlProgramme total factory controlElectricityPower station
The invention provides an electric-power intelligent home control system. The electric-power intelligent home control system comprises an electric energy module, a remote module, an information collecting module, an execution module and a center control module, wherein the electric energy module, the remote module, the information collecting module and the execution module are respectively connected with the center control module. All electric energy in a family is intelligentized, the balanced relation between users and power grids is achieved, and it is achieved that when the electricity consumption of an individual is not large, the individual can serve as a power station of the power grids; even if the electricity consumption is large, the situation that too much electric energy is acquired from the power grids will not happen. The electric-power intelligent home control system is high in intelligentization degree, easy and convenient to operate and simple in structure and achieves user electric energy integration; because the practical value of the electric-power intelligent home control system is exerted to the maximum degree under the condition of the same resources, the electric-power intelligent home control system deserves to be popularized and used.
Owner:LUOHE POWER SUPPLY OF HENAN ELECTRIC POWER CORP
Load control method for realizing peak load shaving of power distribution network
PendingCN110097474ASolve the peak shaving problemSimple way to solve the problemData processing applicationsCharacter and pattern recognitionPeak load shavingElectric power system
The invention discloses a load control method for realizing peak load shaving of a power distribution network. The method comprises the following steps of 1) obtaining a daily load curve according tothe actual operation conditions of a power grid; 2) for the obtained daily load curve, clustering the daily load curve through a fuzzy C-means clustering algorithm; separating a high energy consumption load curve and a heat storage load curve from the daily load curve; and 3) aiming at the high energy consumption load curve and the heat storage load curve in the step 2), transferring the high energy consumption load and the heat storage load to realize the load control of peak load shaving of the power distribution network. According to the present invention, (1) the problem solving mode is simple, and the engineering practical application is facilitated; and (2) by classifying the power loads, carrying out feature recognition on the high-energy-consumption loads and the heat storage loads, and carrying out controllable load transfer in the two loads, the peak load shaving of the power grid is realized; and (3) the power supply pressure of the power system in the second peak period iseffectively relieved, and meanwhile, a night power supply valley period load curve can be smoother.
Owner:STATE GRID LIAONING ELECTRIC POWER RES INST +1
Electric vehicle distributed energy storage method, device, equipment and medium
PendingCN110920459AReduce wasteRelieve power supply pressureCharging stationsElectric vehicle charging technologyElectricity systemCharge control
The invention provides an electric vehicle distributed energy storage method, device and equipment and a medium. The method comprises the steps: receiving a parameter setting request initiated by a client, and setting the energy storage parameters of an electric vehicle unit according to the parameter setting request; receiving the rated maximum storage electric quantity and the current remainingelectric quantity percentage transmitted by the charging and discharging unit, obtaining the charging power value set by the charging and discharging unit, and calculating the charging time; the method comprises the following steps: acquiring a local power consumption peak period, performing power supply judgment on a power grid according to the power consumption peak period, checking idle electric vehicle units when the power grid is in the power consumption peak period, and issuing a power supply control instruction to a charging and discharging unit; and charging judgment is performed on the electric vehicle unit according to the current residual electric quantity percentage, the energy storage parameter and the electricity price time period, and a charging control instruction is issuedto the charging and discharging unit according to a judgment result. According to the invention, the power supply pressure of a power system in a power consumption peak can be well relieved, so thatthe electric energy of the electric vehicle is fully utilized.
Owner:FUJIAN NEBULA ELECTRONICS CO LTD
Battery energy storage system
InactiveCN108011386AImprove power qualityRelieve power supply pressureFlexible AC transmissionAc network load balancingPower gridSystem stability
The invention discloses a battery energy storage system, which comprises a battery system for storing electric energy, a battery management system and a bidirectional converter, wherein the battery management system is connected with the battery system and is used for acquiring voltage of the battery system and carrying out charging and discharging control on the battery system according to the voltage; and the bidirectional converter is connected with the battery management system and is used for converting AC input from a power grid into DC and converting the DC input from the battery management system into the AC to carry out charging and discharging control on the battery system through the battery management system. According to the battery energy storage system, the technical problemof relatively low system stability due to high peak load of an electric vehicle charging station is solved.
Owner:STATE GRID BEIJING ELECTRIC POWER +1
Comprehensive self-consistent energy microgrid configuration method based on hydrogen energy storage and energy regulation and control method
PendingCN113572197AReduce overdependenceSolve energy security problemsDc network circuit arrangementsElectrolysis componentsMicrogridEnergy regulation
The invention relates to a comprehensive self-consistent energy microgrid configuration method based on hydrogen energy storage and an energy regulation and control method. An intelligent management and control system of a microgrid collects power-heat-cold energy consumption requirements of a microgrid load in real time, collects a real-time pressure intensity value of hydrogen in a hydrogen storage tank in the microgrid, and recognizes the relation between the microgrid and a power grid through an on-grid and off-grid judgment module; in an independent operation state that the micro-grid is merged into a power grid or the micro-grid leaves the power grid, the energy of the micro-grid is regulated and controlled by representing the energy storage capacity by using the real-time pressure value of hydrogen in the hydrogen storage tank, a result is judged based on the real-time pressure value of the hydrogen and a set hydrogen pressure boundary threshold value, whether wind power and photoelectricity in the micro-grid output power or not is combined, the micro-grid load cold and heat supply is jointly used as a constraint condition, and then a corresponding energy management and control strategy is started. On the basis of the wind and light prediction result and the typical daily load curve, instruction deviation caused by wind and light random and load fluctuation is adjusted and stabilized in real time according to the output of each unit in the day, and real-time balance of system energy and power is guaranteed.
Owner:BEIJING NEGO AUTOMATION TECH
Peak-load regulation assessment method and system based on distributed energy resource station access
InactiveCN103854069AMaximize peak shaving effectEasy to planForecastingSystems intergating technologiesStart timeEngineering
The invention provides a peak-load regulation assessment method based on distributed energy resource station access. The method includes the peak clipping result analyzing step, wherein according to electric power daily load data of a preset user area, the starting time section and the peak-load regulation operation mode of a distributed energy resource station are set, and dynamic regulation is performed on the starting time section and the peak-load regulation operation mode according to the peak and valley difference reduction value of the user area. The invention further discloses a corresponding peak-load regulation assessment system based on the distributed energy resource station access. The peak-load regulation capacity of the distributed energy resource station can be assessed and analyzed in a quantification mode, so that the effect of performing peak-load regulation on a power grid is maximized, power supply pressure at a peak period is effectively buffered, and the utilization rate of power transmission and distribution equipment is improved; moreover, electric power construction investment saved for the distributed energy resource station can be estimated in a quantification mode, the overall planning of the power grid is facilitated, construction is not repeated, and it is guaranteed that the system operates economically and reliably.
Owner:SHENZHEN POWER SUPPLY BUREAU +1
Air conditioner, and power supply system and power supply method thereof
ActiveCN103986226ATo achieve the purpose of shaving peaks and filling valleysRelieve power supply pressureEmergency power supply arrangementsElectricityStored energy
The invention discloses an air conditioner, and a power supply system and a power supply method thereof, and relates to the field of air conditioners. The power supply system of the air conditioner comprises a storage battery and a power control unit, wherein the power control unit is used for charging the storage battery through a power grid in the electric energy trough time period of the power grid and controlling the storage battery to supply power to the air conditioner in the electric energy crest time period of the power grid and also controlling the storage battery to supply power to the power grid. By the additional arrangement of energy storage equipment in the power supply system of the air conditioner, energy storage can be executed in the electric energy trough time period, and the stored energy can be supplied to the air conditioner in the electric energy crest time period and also supplied to the power grid reversely, so that the aims of reducing peak and filling trough are fulfilled, and other loads can be considered by taking the air conditioner as a center; due to a self-sufficient small-size power energy center, the air conditioner is not single electric equipment any more and can be used as an energy support to form a power generation, electricity utilization and power storage all-in-one air conditioner.
Owner:GREE ELECTRIC APPLIANCES INC
Photovoltaic DC power supply system and method for electrolytic aluminum electrolytic production
InactiveCN106856354ARelieve power supply pressureReduce consumptionBatteries circuit arrangementsEnergy storageFuel cellsElectrolysis
The invention provides a photovoltaic DC power supply system and a method for electrolytic aluminum electrolytic production. The system comprises a photovoltaic power generation module, a fuel cell energy storage module, a space-time heterogeneous coupling controller and a power grid power supply module, wherein the photovoltaic power generation module provides DC power for an electrolytic aluminum electrolytic bath and charges the fuel cell energy storage module; the fuel cell energy storage module stores remaining power of the photovoltaic power generation module, and a stored gas is adopted as a fuel to obtain power to provide power for the electrolytic aluminum electrolytic bath; the power grid power supply module provides power for the electrolytic aluminum electrolytic bath; the space-time heterogeneous coupling controller selects a power input side of the electrolytic aluminum electrolytic bath according to the relationship between the photovoltaic power generation maximum power Ps of the photovoltaic power generation module and the rated power P0 of the electrolytic aluminum electrolytic bath; and according to voltage at different input sides and the rated voltage U0 of the electrolytic aluminum electrolytic bath, a needed duty cycle is calculated, and the output voltage at the power input side is controlled. The system relieves the power supply pressure and the peak regulation pressure of the power grid, and consumption of fossil energy is saved.
Owner:NORTHEASTERN UNIV
Energy coordinated operation control system
PendingCN110553308ARelieve power supply pressureImprove reliabilityLighting and heating apparatusSpace heating and ventilation detailsEngineeringHeat energy
The invention relates to an energy coordinated operation control system. The energy coordinated operation control system comprises a distributed photovoltaic unit, an air source heat pump unit and a control module; the distributed photovoltaic unit and the air source heat pump unit are connected unidirectionally; the air source heat pump unit and the control module are connected bidirectionally; the distributed photovoltaic unit is connected with a power grid bidirectionally; the distributed photovoltaic unit supplies power to the air source heat pump unit or is connected with the power grid during the electricity consumption peak; heat energy heating is performed by the air source heat pump unit by utilizing a low-phase heat source; the control module is used for controlling the distributed photovoltaic unit according to a predefined control strategy to supply power to the air source heat pump unit to make a temperature value within a predefined temperature range; and the predefined control strategy includes controlling the distributed photovoltaic unit to be connected with the power grid, controlling the air source heat pump unit to be started and stopped and performing fuzzy control over the air source heat pump unit. The indoor temperature of a user is effectively regulated in real time through fuzzy control, so that the phenomenon of insufficient heating or excessive heating in traditional heating is avoided, and the economic benefit of electricity consumption of the user is maximized.
Owner:CHINA ELECTRIC POWER RES INST +2
Phase transformation cool storage air conditioner system
InactiveCN108151206AEnergy saving and environmental protectionWith remote controlMechanical apparatusLighting and heating apparatusIntelligent planningCool storage
A phase transformation cool storage air conditioner system comprises a refrigeration module, a heat preservation module, a temperature and humidity adjusting module, a control module and a communication module. A management method corresponding to the phase transformation cool storage air conditioner system is further provided. The phase transformation cool storage air conditioner system carries out the functions of the modules through software. The phase transformation cool storage air conditioner system has the beneficial effects of energy conservation and environmental protection, power supply pressure relieving, remote control, heath and intelligent planning.
Owner:王长贵
Dual-power supply switching circuit assisting solar power supply
InactiveCN107093926ARelieve power supply pressureSolve the problem of unstable power supplyRenewable energy source integrationEmergency power supply arrangementsSolar powerTriode
The invention discloses a dual-power supply switching circuit assisting solar power supply. The circuit comprises a first power supply input terminal, a second power supply input terminal, a breakdown diode, an N-type triode and an N-channel transistor. The first power supply input terminal is connected to a load and is connected to a cathode of the breakdown diode. An anode of the breakdown diode is connected to a base electrode of the triode. An emitting electrode of the triode is grounded and a collector electrode is connected to a grid electrode of the transistor. The grid electrode of the transistor is also connected to the second power supply input terminal. A drain electrode of the transistor is connected to the second power supply input terminal. A source electrode of the transistor is connected to the load. A power supply connected to the second power supply input terminal only works when a power supply connected to the first power supply input terminal is in an attenuation state, which means that the power supply connected to the first power supply input terminal under an abnormal state is supplemented through the second power supply input terminal.
Owner:HEFEI SHANGSHUO NEW ENERGY
Environment-friendly utilization method of waste power battery of new energy automobile
InactiveCN110504500AImprove safe operationRelieve power supply pressureCells structural combinationSecondary cells charging/dischargingPower batteryElectrical battery
The invention discloses an environment-friendly utilization method of a waste power battery of a new energy automobile. The method comprises the following steps of S1, screening waste power batteries,wherein the SOH of each screened waste power battery is not less than 50%; and S2, detecting the waste power batteries in Step S1, and recombining and integrating the waste power batteries meeting adetection standard to obtain a battery pack. The method is good in recycling effect.
Owner:重庆跃达新能源有限公司
Natural gas pressure regulation station and solar comprehensive power generation system
InactiveCN105715470ARelieve power supply pressureSolve the problem of difficult energy storage at nightFrom solar energyMachines/enginesAutomatic controlDifferential pressure
The invention discloses a natural gas pressure regulation station and solar comprehensive power generation system. The comprehensive power generation system is composed of a solar heat collecting system, an ORC power generation system, a natural gas differential pressure power generation system, an automatic control system and the like. The solar heat collecting system, the ORC power generation system and the natural gas differential pressure power generation system are organically combined together to form a combined cycle power generation system. By the adoption of the combined cycle power generation system, the electrical loads can be adjusted to meet the power supply demand, the power supply pressure of a power grid is relieved, the problems that energy cannot be easily stored by a groove type solar photo-thermal power generation system at night, the temperature of natural gas is rapidly reduced in the pressure regulating process, and threats are caused to pressure regulation and pipeline equipment operation safety are avoided, and the cost input is reduced; and meanwhile the combined cycle power generation system can be continuously operated all over the year, so that the overall economic benefits of a project are improved.
Owner:BIHAIZHOU BEIJING ENERGY SAVING EQUIP CO LTD
Magnetic engine
The invention provides a magnetic engine which comprises a box body, a power device, a delay device and a crankshaft, the power device comprises a plurality of groups of power mechanisms connected inparallel, each power mechanism comprises a transmission shaft, magnetic plate groups and an iron plate, the magnetic plate groups are arranged in parallel, each magnetic plate group comprises two stator magnetic plates fixed on two opposite side surfaces of the box body and a rotor magnetic plate in the box body, and two side surfaces of each rotor magnetic plate respectively repel the adjacent stator magnetic plates in magnetism; the iron plates are positioned between two adjacent magnetic plates, are parallel to the magnetic plates, and can move relative to the magnetic plates to change themagnetic induction line flux between the stator magnetic plates and the rotor magnetic plates, so that the rotor magnetic plates are stressed unevenly to move; the transmission shafts vertically penetrate through the magnetic plates and the iron plates, the end parts of the transmission shafts extend out of the box body and are connected with the crankshaft, and the transmission shafts are used for driving the crankshaft to rotate to output power; the delay device transmits output power to drive the iron plates to move so as to shield magnetic lines of force. The magnetic force balance point is broken, the magnetic energy is released, and the magnetic engine can be widely applied to daily production and life.
Owner:张元志
Power supply system
PendingCN107612029ARelieve power supply pressureIntelligent adjustment of load power supplySingle network parallel feeding arrangementsEnergy storageElectricityPower grid
The invention provides a power supply system, which comprises a first power supply station, a second power supply station, an energy storage component, a municipal power supply unit, a control unit and load, wherein the first power supply station is used for converting solar energy into electric energy; the second power supply station is a diesel generator; the first power supply station is connected with the energy storage component to store the electric energy into the energy storage component; the first power supply station, the second power supply station and the energy storage component are connected with the load to provide the load with electricity; the municipal power supply unit is connected with a utility grid and the load to provide the load with municipal power to provide the load with the electricity; the control unit communicates with the first power supply station, the second power supply station, the energy storage component, the municipal power supply unit and the loadto detect output power of the first power supply station, the second power supply station, the energy storage component and the municipal power supply unit and the power required by the load; and thecontrol unit controls the output power of the first power supply station, the second power supply station, the energy storage component and the municipal power supply unit according to the power required by the load.
Owner:OPTIMUM BATTERY CO LTD
Method for grid-connected power generation based on solar street lamp power supply system
ActiveCN105406503ARelieve power supply pressureImprove power generation utilizationEnergy industrySingle network parallel feeding arrangementsPower gridSolar street light
The invention discloses a method for grid-connected power generation based on a solar street lamp power supply system, and the method comprises the following steps: street lamp grouping, primary rectification, DC output, secondary rectification, waveform adjustment, and grid-connected power generation. The method can be used for the centralized management of solar street lamps for urban lighting; can enable residual power to be safely and effectively inputted into a national power grid while meeting street lamp illumination; irons out defects that conventional solar street lamp generation is small in application range, cannot meet the industrial and lift power utilization demands and cannot meet the requirements of large area and remote power supply; improves the comprehensive utilization rate of solar street lamp power generation, reduces the utilization cost of solar street lamp power generation, and facilitates the alleviation of urban power supply.
Owner:STATE GRID CORP OF CHINA +1
Optical storage and charging multi-target power dynamic adjusting system and method
ActiveCN112821418ARelieve power supply pressureAchieving two-way flowCharging stationsPower network operation systems integrationControl layerPower difference
The invention discloses an optical storage and charging multi-target power dynamic adjusting system and method, and the system is characterized in that the adjusting system comprises a control layer and an equipment layer, the equipment layer comprises a plurality of photovoltaic power generation systems, a plurality of energy storage systems and a plurality of charging piles, and the control layer comprises an optical storage and charging coordination controller. And the optical storage and charging coordination controller is used for collecting output power information of each piece of equipment of the equipment layer and performing real-time control on the power of each piece of equipment of the equipment layer, so that the power difference between the actual power value and the set power value of interaction between the optical storage and charging system and the power grid tends to zero. According to the invention, the energy flow value with the power grid can be self-defined, the method can be used for an off-grid system and a grid-connected system, the application scene is wide, and the target energy flow value of the optical storage and charging system at the grid-connected point can be flexibly set; the adjustment is fast and accurate, and the real-time performance is good. The optical storage and charging integrated system not only utilizes the generating capacity of renewable energy sources to the greatest extent, but also has good economic benefits.
Owner:SHANGHAI ELECTRICGROUP CORP
Internal flexible networking system of power utilization enterprise with multiple distribution transformers
ActiveCN111463786APower distribution securityImprove power asset utilizationElectric power transfer ac networkSingle ac network with different frequenciesDistribution transformerPower usage
The invention discloses a power enterprise internal flexible networking system with multiple distribution transformers. The system comprises multiple distribution transformers, wherein a low-voltage side of each distribution transformer is used for being connected with a power supply bus so as to achieve power distribution of a power load through the power supply bus, the system further comprisesa first bidirectional converter, an alternating current side port of each first bidirectional converter is electrically connected with the power supply bus corresponding to one distribution transformer, direct current side ports of the first bidirectional converter are interconnected through a direct current bus so that a net-shaped distribution network is formed among the plurality of distribution transformers. The system is advantaged in that a mesh connection network is formed among a plurality of distribution transformers, all the distribution transformers can be flexibly connected with one another, electric energy in the system can be migrated and distributed among all the distribution transformers along the grid-shaped distribution network, mutual power support, energy interaction, mutual voltage support and mutual emergency backup are achieved, enterprise distribution safety is guaranteed, and the utilization rate of electric power assets is increased.
Owner:湖北春田电工技术有限公司
Multi-energy distribution management method suitable for charging of mobile charging equipment of electric vehicle
ActiveCN113191682AMaximize utilizationRelieve power supply pressureCharging stationsArtificial lifeNerve networkNew energy
The invention discloses a multi-energy distribution management method suitable for charging of mobile charging equipment of an electric vehicle, and the method comprises the following steps: measuring the parameters of an actual photovoltaic circuit, building a photovoltaic power generation equivalent mathematical model, and outputting corresponding expected power generation power data by the equivalent mathematical model for continuously changing illumination intensity and temperature; based on the use demand of the user, increasing the electric quantity of the equipment to the minimum electric quantity meeting the charging demand of the user within a certain time, and establishing an objective function; carrying out optimization solution on the target function by utilizing an ant colony algorithm; inputting a plurality of groups of data into an ant colony algorithm to obtain an optimal energy distribution condition under a corresponding condition; and writing the trained neural network into the system, measuring the deviation between the actual value and the estimated value in real time, and regularly training and correcting the system according to specific conditions. According to the method, the current most suitable operation strategy is calculated, and the power supply pressure of the power grid caused by charging of the new energy automobile can be relieved, so that the maximum energy utilization is achieved.
Owner:WENZHOU UNIVERSITY
Photovoltaic power generation system combined with fish farm
InactiveCN105703700ALess investmentImprove reliabilityPhotovoltaic supportsSingle network parallel feeding arrangementsReduction drivePower grid
The invention discloses a photovoltaic power generation system combined with a fish farm; wherein a rear bearing pedestal is fixedly mounted on a rear support post; a front bearing pedestal is fixedly mounted on a front support post; a rotation shaft is mounted on the rear bearing pedestal and the front bearing pedestal through bearings; a stepping motor is mounted on a reducer; the reducer is mounted on the rear bearing pedestal; a rear mounting base and a front mounting base are fixedly mounted on the rotation shaft; a mounting framework is fixedly mounted on the rear mounting base and the front mounting base; a solar cell panel is fixedly mounted in the mounting framework; a belt pulley is fixedly mounted on the rotation shaft; a synchronous toothed belt is mounted on the belt pulley; the solar cell panel is connected with a storage battery set; the storage battery set is connected with a controller; an inverter, a feedback module and a diesel generator are connected with the controller; a switching switch is connected with the inverter, the feedback module and the diesel generator; and a lighting, a water pump and a power network are connected with the switching switch.
Owner:QINGDAO ZKNET NEW ENERGY CO LTD
Low-temperature type fuel gas heat pump air-conditioning system and control method thereof
InactiveCN109990497AMeet the needs of useRelieve power supply pressureClimate change adaptationCompression machines with reversible cycleVapor–liquid separatorFour-way valve
The invention relates to a low-temperature type fuel gas heat pump air-conditioning system and a control method thereof. The low-temperature type fuel gas heat pump air-conditioning system comprises arefrigerant circulation loop which is composed of compressor, an oil separator, a four-way valve, an indoor unit heat exchanger, an outdoor unit heat exchanger and a gas-liquid separator which are connected in sequence. The compressor is connected with a fuel gas engine through a belt; a cooling water tank is disposed outside the fuel gas engine; the cooling water tank forms a cooling water circulation loop through a water pump and a radiator; an auxiliary evaporator is further included; a refrigerant side outlet pipe of the auxiliary evaporator is connected with the gas-liquid separator, anda refrigerant side inlet pipe of the auxiliary evaporator is connected to a pipeline between a second end of the indoor unit heat exchanger and a first end of the outdoor unit heat exchanger; the twoends of a water way of the auxiliary evaporator are connected with the two ends of the radiator correspondingly; and the first end of the outdoor unit heat exchanger is connected with an outlet of the oil separator. By means of the low-temperature type fuel gas heat pump air-conditioning system and the control method thereof, the effect of heating running of the system under the low temperature can be effectively improved, and the unfavorable influences caused by insufficient power supply can be avoided.
Owner:NANJING TICA AIR CONDITIONING CO LTD
Distributed photovoltaic power station user side three-phase imbalance counter-current prevention device and method
PendingCN108616135ASolve energy lossAvoid energy lossSingle network parallel feeding arrangementsPolyphase network asymmetry elimination/reductionCounter currentContactor
The invention discloses a distributed photovoltaic power station user side three-phase imbalance counter-current prevention device and method. The counter-current prevention device is composed of a rectified three-phase circuit, a bidirectional DC-DC conversion, an energy storage battery and a microprocessor connected in parallel at the load side; an incoming line end of the rectified three-phasecircuit is connected with an outgoing line end of a photovoltaic inverter, and the outgoing line end thereof is orderly connected with the bidirectional DC-DC conversion circuit and the energy storagebattery to form a charging main loop of the imbalance current; the outgoing line end of the rectified three-phase circuit is connected with the incoming line end of the inverter through a contactor switch so as to form a battery discharging loop; the microprocessor realizes the charging / discharging control on the battery by driving the rectified three-phase circuit, the contactor switch and the DC-DC circuit switch tube. The distributed photovoltaic power generation and the battery energy storage system are combined, the problem of the countercurrent power of the current caused by the three-phase load imbalance at the user side is solved by connecting the energy storage system in parallel at the load side, and the safe, stable and economic operation of the system is effectively guaranteed.
Owner:SHAANXI UNIV OF SCI & TECH
Distributed multi-power supply airport intelligent microgrid system
PendingCN112186800AIntegrate and leverageImprove power qualityPower network operation systems integrationSingle network parallel feeding arrangementsPower qualitySmart microgrid
The invention discloses a distributed multi-power supply airport intelligent microgrid system, which comprises a distributed multi-power-supply module, an intelligent control module and a centralizedcontrol background, the distributed multi-power-supply module comprises a solar energy power supply sub-module, a wind power supply sub-module, a mobile energy storage power supply sub-module, a fixedenergy storage power supply sub-module, a local power grid power supply sub-module, a water conservancy power supply sub-module, a garbage power generation power supply sub-module and a diesel generator power supply sub-module. The intelligent control module comprises a solar power supply control sub-module, a wind power supply control sub-module, a mobile energy storage power supply control sub-module, a fixed energy storage power supply control sub-module, a local power grid power supply control sub-module, a water conservancy power supply control sub-module, a garbage power generation power supply control sub-module and a diesel generator power supply control sub-module. According to the invention, airport power quality can be effectively improved, electric energy is integrated and fully utilized, power supply pressure during peak hours of power utilization is relieved, reliability and safety of a power supply system are improved, and effective management of the airport power supply system is realized.
Owner:CHINA RAILWAY ERYUAN ENG GRP CO LTD +2
Novel energy-saving street lamp
InactiveCN107228328AExtended service lifeSimple structureMechanical apparatusElectric circuit arrangementsWind drivenEngineering
The invention discloses a novel energy-saving street lamp, and solves the problems of energy waste, short service life and potential safety hazards in the prior art. The novel energy-saving street lamp comprises a street lamp column provided with a cement foundation, a hollow street lamp support column, an illuminating lamp, a reinforcing rib pipe, a solar panel, a control box, a wind energy power generation support column, a micro wind driven generator, a wind cup, a microprocessor, an accumulator and a power supply plate; a radiator is arranged between the illuminating lamp and the street lamp support column; the radiator comprises an annular radiator body and a radiator wing; an inner ring of the annular radiator body communicates with an inner cavity of the street lamp support column; two or more ventilation holes for communicating with the inner cavity of the street lamp column are formed in the middle part of the street lamp column; a micro air blower is arranged in the inner cavity of the street lamp column; an annular collision preventing device is arranged at the top of the cement foundation; and the collision preventing device comprises a rubber layer and a sponge layer. The novel energy-saving street lamp is simple in structure, scientific and reasonable in design and convenient in use, saves the energy, protects the environment, can effectively eliminate potential safety hazards, can effectively prolong the service life of the illuminating lamp, and saves the use cost.
Owner:CHENGDU KANUOYUAN TECH CO LTD
Multifunctional system tail end energy storing and releasing machine
InactiveCN103673165ARelieve power supply pressureEnergy savingHeat storage plantsAir conditioning systemsElectric heatingMultiple function
The invention relates to a multifunctional system tail end energy storing and releasing machine used in the field of heating, ventilation and refrigeration air conditioners. The multifunctional system tail end energy storing and releasing machine is composed of an energy accumulator, an air channel, a partition board, a heat insulating layer, a motor, a draught fan, an electric heating element and a telescopic calandria. The multifunctional system tail end energy storing and releasing machine can be installed independently for use and can also be connected with heating and cooling systems such as a household central air-conditioner, a large center air-conditioner system, a ground source, water source and air source heat pump system, an electric boiler system and a solar water heating system for use. Clean energy provided by night low electric energy, solar energy, ground source energy, water source energy, air energy devices and the like is converted into cold and heat energy to be stored, and then the purpose of accumulating energy at night and releasing energy in the daytime is achieved. Energy is accumulated in a room needing to be heated or cooled, energy consumption caused is fully and efficiently utilized by a user, energy waste is avoided, energy consumption loss is zero, and electric charge is saved. The multifunctional system tail end energy storing and releasing machine is mounted in a wall or in a ceiling of a room without occupying extra space, and is widely used in various buildings needing to be heated, air-conditioned and supplied with hot water.
Owner:魏铮
Self-balancing control method for energy system
InactiveCN110212577ARelieve power supply pressureAvoid negative effectsSingle network parallel feeding arrangementsEnergy storageMicrogridTransmitted power
The present invention discloses a self-balancing control method for an energy system, which comprises the following steps: a microgrid is configured; a microgrid circuit is arranged at a power distribution end of a power grid and the microgrid circuit comprises a photovoltaic power generation device, a storage battery, an energy storage inverter, a controller and various electrical loads; the controller controls the photovoltaic power generation device, a distribution box switch, the energy storage inverter and an switch of the electrical loads; the power grid transmits power to the microgridcircuit through the distribution box; peak-load shifting is controlled; a power supply process of the power grid includes a peak load period and a valley load period; a net load P is obtained by subtracting the power output of a renewable energy power generation system from an actual load; and off-grid switch is performed. The invention can alleviate the power supply pressure of the power grid under a peak load and makes full use of the excess electric energy in the valley load period. Stable power consumption of a user is ensured so that daily electricity and office work do not delay even power supply is cut off due to a grid fault. A stable power grid is provided and the negative effects of unstable photovoltaic power generation are avoided.
Owner:南通国轩新能源科技有限公司
FPGA channel pre-emphasis and equalization method and system based on ofdm high-speed logging telemetry system
ActiveCN112187695BTrue restorationReduce demandElectric signal transmission systemsMulti-frequency code systemsData synchronizationEqualization
The present invention relates to an FPGA channel pre-emphasis and equalization method and system based on an OFDM high-speed well logging remote transmission system. The ground communication board sends a training sequence A to the downhole communication board, and the downhole communication board FPGA utilizes M repeated short training sequences in A for data processing. Synchronization, using N repeated long training sequences in A to train the LMS time domain equalizer; after the N repeated long training sequences pass through the time domain equalizer, the data of the Nth sequence is sent to the ground communication using a specific channel for 4QAM OFDM modulation board; the ground communication board FPGA performs fast Fourier transform on the data of the Nth equalized long training sequence to obtain the pre-emphasis coefficient of each sub-channel, and calculates the new long training sequence according to the obtained pre-emphasis coefficient of each sub-channel Sequence E, and send the training sequence B to the downhole communication board FPGA; the downhole communication board FPGA uses M repeated short training sequences in B for data synchronization, and for N repeated long training sequences E in B, use the previous training The time-domain equalizer performs equalization, and then performs fast Fourier transform, and calculates the frequency-domain equalization coefficients of each sub-channel to complete the pre-emphasis and equalization of the channel.
Owner:UNIV OF SCI & TECH OF CHINA
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Patsnap Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com