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.
46results about How to "Safe and economical operation" 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
Implementation method of smart power grid resource real-time operating state three-dimensional visualization display system
InactiveCN104239998AGood application effectImprove visualizationTechnology managementResourcesTerrainView based
The invention discloses an implementation method of a smart power grid resource real-time operating state three-dimensional visualization display system. The implementation method comprises the following steps of adopting a 360-degree panorama model at the designated position to visually display real environment of field power grid resources, wherein the real environment can be displayed through dynamic flight of a three-dimensional mode; clicking a three-dimensional line and a device model to check standing book material information in a production management system when browsing a three-dimensional map; obtaining current real-time operating data of a power device and acquiring real-time data for displaying an operating state of a power transmission power grid and an operating state of a power distribution power grid. The implementation method uses remote sensing data, topographic data and the data of the 3D model as a core, fully meets the service management demand, achieves interactive bird's-eye view based on three dimensional terrain landscape, rotational flight displaying at any angle and in any orientation, stepless zooming and quick seamless browsing, achieve management, inquiry, analysis and other service of the power grid resources in the three-dimensional environment and provides a new management means for resource management of power enterprises.
Owner:STATE GRID CORP OF CHINA +2
Economic optimized dispatching method for energy storage power stations
ActiveCN103001331AImprove working conditionSafe and economical operationElectrical storage systemPower stationLow voltage
The invention relates to an economic optimized dispatching method for energy storage power stations. A system utilized in the economic optimized dispatching method comprises independent adjustable battery packs, a transformer, a transformer bus, and an energy storage monitoring system power dispatching center, wherein the independent adjustable battery packs are connected on the bus on the low-voltage side of the transformer, and the transformer and the energy storage monitoring system power dispatching center are sequentially communicated with a power grid dispatching system. The economic optimized dispatching method includes the steps of initializing data of a energy storage power station; confirming the number of the independent adjustable battery packs; reading operation parameters of the independent adjustable battery packs and uploading the same to the energy storage monitoring system power dispatching center; confirming the optimum economic optimized dispatching scheme to obtain the optimum economic optimized dispatching model; and outputting a power dispatching command of the battery packs of the energy storage power station. Concrete structure of the energy storage power station and technical characteristics of energy storage packs are fully taken into consideration, the lowest total cost is taken as the optimizing object, power demand of battery operation and dispatching is taken as a limiting condition, and the economic optimized dispatching method is simultaneously applicable to energy type energy storage power stations and power type energy storage power stations.
Owner:CHINA ELECTRIC POWER RES INST +1
Pneumoelectric interconnection system optimization operation method considering wind power uncertainty
InactiveCN111769553ASafe and economical operationImprove absorption capacitySingle network parallel feeding arrangementsEnergy storageControl theorySystem optimization
The invention discloses a pneumoelectric interconnection system optimization operation method considering wind power uncertainty. The method comprises the steps: building a pneumoelectric interconnection system random optimization operation model through employing the minimization of the total operation cost of a pneumoelectric interconnection system as a target and combining with a set related operation constraint; aiming at the nonlinear power flow equation constraint of a natural gas network, adopting a linearization method for processing; describing the uncertainty of wind power output byusing a scene analysis method, generating a large number of wind power output scenes through a Monte Carlo simulation method, then applying a scene reduction method based on synchronous back substitution elimination to reduce the scenes to obtain a small number of representative scenes, and then converting the random optimization problem of the pneumoelectric interconnection system considering thewind power uncertainty into a mixed integer linear programming problem of a plurality of deterministic scenes to be solved. Under the condition that the wind power output is uncertain, the economicalefficiency and safety of the operation of the pneumoelectric interconnection system and the absorption capacity of the wind power are effectively improved through optimal scheduling.
Owner:SICHUAN UNIV
Piping-main scheme boiler load coordinating control method
ActiveCN101451709AStable economic operationSafe and economical operationBoiler controlAuto regulationPower station
The invention discloses a load coordination control method for a header system boiler, relating to the load coordination control method for boilers at power station. The invention solves problem of unstable vapor pressure in a main vapor pipe of the header system operation boiler adjusted by manpower currently and realizes an automatic adjustment of pressure of the main pipe. The pressure load of the main pipe in the system adjusts control mode of each boiler in coordination with DCS; then according to overall load demand of the system, load given value of each boiler is adjusted by increment and sent to the DCS of each boiler of the system; the adjustment method of the load given value of each boiler is that: when load difference of each boiler of the system is over big and the load needs increasing, the load given value of the boiler with minimum load needs increasing; when the load needs decreasing, the load given value of the boiler with maximum load needs decreasing and the given value is fixed. The load coordination control method for the header system boiler has the advantages of being able to effectively control fluctuation of the pressure of the main pipe within + / -0.1MPa.
Owner:哈尔滨中远控制工程有限公司
Corrosion and scale inhibitor for treating circulating cooling water
InactiveCN103496794AReduce phosphorus contentExcellent corrosion and scale inhibitionTreatment using complexing/solubilising chemicalsEngineeringCarboxylic acid
The invention discloses a corrosion and scale inhibitor for treating circulating cooling water. The corrosion and scale inhibitor is composed of the following raw materials in percentage by mass: 3-15% of polyaspartic acid, 0-8% of organic phosphine, 2-10% of phosphine carboxylic acid, 5-10% of carboxyl group-containing polymer, 1-3% of copper corrosion inhibitor, 0-16% of zinc salt and the balance of water. The corrosion and scale inhibitor disclosed by the invention is low in phosphorus content and biodegradable, and no water body eutrophication is caused by pollution discharge; the corrosion and scale inhibitor has excellent corrosion and scale inhibition properties and can effectively improve the heat exchange effect of a central air conditioning refrigerating unit when being applied in a central air conditioning circulating cooling water system, the average temperature difference of a condenser is not larger than 1.0 DEG C and the average temperature difference of an evaporator is not larger than 2.4 DEG C, and thus safe, stable and economical operation of the unit is ensured.
Owner:广东省石油化工研究院
High-pressure control valve flow optimization device and method for turbine unit
ActiveCN105697074ASafe and economical operationStable economic operationMachine part testingMachines/enginesData simulationComputer module
The invention discloses a high-pressure control valve flow optimization device for a turbine unit. The high-pressure control valve flow optimization device comprises an instruction control module used for sending out aperture signals of various control valves, an executing module used for receiving instructions and controlling the aperture changes of the control valves, a data collecting module used for collecting turbine adjusting-stage pressure, turbine main vapor pressure and other real-time parameters, and a data simulating optimization module used for conducting data simulation and optimization on a flow characteristic curve according to the aperture of the control valves and the turbine parameters collected by the data collecting module. The invention further discloses a high-pressure control valve flow optimization method for the turbine unit. The defects in the prior art can be overcome, the load disturbance phenomenon in the switching process is eliminated, and accordingly it is guaranteed that the unit valves safely, stably and economically run in the switching state.
Owner:ANHUI XINLT POWER TECH CONSULTING +1
Active power distribution network optimization scheduling method for large-scale electric vehicle access
ActiveCN110826880ASafe and economical operationReliable and economical operationSingle network parallel feeding arrangementsAc network load balancingCommunications systemOptimal scheduling
The invention discloses an active power distribution network optimization scheduling method for large-scale electric vehicle access, and particularly relates to the technical field of power distribution network optimization scheduling, and the method specifically comprises the following steps: S1, a first layer is two-stage optimization scheduling implemented by DEMS; S2, a second layer is real-time scheduling executed by the regional EV-EMS; and S3, optimized scheduling models in each stage are established and solving methods are adopted. According to the invention, the scheduling strategy isoptimized through three stages; day-ahead scheduling and intra-day correction of controllable resources of the power distribution network and real-time control of EVs charging are cooperatively realized; the influence of uncertainty factors such as RES power generation and EVs charging behavior randomness is reduced; by adopting a 'centralized+distributed 'hybrid computing framework, the computing time is greatly reduced, the problem of dimensionality disasters is solved, in addition, the adverse effect of local communication failure on overall optimal scheduling is also reduced, and the requirement on the reliability of a communication system is reduced.
Owner:CHENGDU UNIV OF INFORMATION TECH
Technology determination method for changing crosslinked polyethylene cable alternating current line into direct current operation
InactiveCN102361322AImprove operational reliabilityLong-term economic operationTesting dielectric strengthDc network circuit arrangementsElectricityCarrying capacity
The invention provides a technology determination method for changing crosslinked polyethylene cable alternating current line into direct current operation. The method comprises the following steps: designing a crosslinked polyethylene cable alternating current operation scheme, calculating long-term allowed rated current-carrying capacity of a crosslinked polyethylene cable and a temperature difference between two insulated ends of the crosslinked polyethylene cable in full load operation, testing a characteristic parameter of the crosslinked polyethylene cable under direct current voltage, calculating long-term allowed direct current work voltage of the crosslinked polyethylene cable, calculating transmission capacity of a crosslinked polyethylene cable line and determining whether the crosslinked polyethylene cable satisfies a requirement of direct current operation, and checking a grounding mode of a direct current operation line of the crosslinked polyethylene cable. According to the method in the invention, present cable insulation can bear various voltage of operation under designed direct current voltage, an electrical property of the cable insulation satisfies a requirement, simultaneously present resource can be fully utilized, and long-term reliable economic transmission of electric energy is realized.
Owner:XI AN JIAOTONG UNIV +1
Control and adjustment device for bending press
ActiveCN103329054AFulfill security requirementsSimplified Signal EvaluationShaping safety devicesNumerical controlMachine pressEngineering
The invention relates to a control and adjustment device (1) for a driving arrangement (7) of a movable press beam (8) of a bending press (3), in particular a press brake, comprising a protective housing (29) that has an access opening (30) for a foot (25) of an operating person and comprising a pedal-like actuating element (32) arranged in the protective housing (29). At least one detecting means, which is communicatively connected to an open-loop control and monitoring device (2) of the bending press (3) and which is formed by a motion profile detecting means (40), is associated with the actuating element (32).
Owner:TRUMPF MASCHEN AUSTRIA
Draining and oxygen adding device for full-automatic heater
ActiveCN102745753ASolve problems such as blockageObvious blockageCorrosion preventionWater/sewage treatmentHydrogenOxygen content
The invention discloses a draining and oxygen adding device for a full-automatic heater. The device comprises the following components: a PLC; a pressure detector for collecting a pressure signal in pipeline at an oxygen adding point, and transmitting the pressure signal to the PLC; a dissolved oxygen content detector for collecting a dissolved oxygen content at a detecting point and transmittingthe dissolved oxygen content signal to the PLC; an oxidation-reduction potential detector for collecting an oxidation-reduction potential at the detecting point and transmitting the oxidation-reduction potential signal to the PLC; a hydrogen conductivity detector for collecting hydrogen conductivity at the detecting point and transmitting the hydrogen conductivity signal to the PLC; and a flow controller connected with an oxygen source and for controlling oxygen addition flow according to the PLC command. The invention also discloses a draining and oxygen adding method for the automatic heater. The oxygen adding device of the invention can avoid clogging of a drainage valve on a high-pressure heater shell side pipeline, and maintain safe and economical operation of the unit at an OT working conditions.
Owner:ZHEJIANG ZHENENG TECHN RES INST
Flow-equalizing self-stabilization air quantity measuring device
InactiveCN102853867ASpeed up the flowImprove combustion efficiencyVolume/mass flow by differential pressureDifferential pressureEngineering
The invention discloses a flow-equalizing self-stabilization air quantity measuring device, relates to an air quantity measuring device, and aims to solve problems of high fluctuation of measurement results, poor stability and inaccurate measured data of a measuring device due to the fact that an existing pulverizing system of a boiler is compact in arrangement, mounting space for an inlet of a coal mill is narrow, the measuring device is mounted difficultly and the air quantity of the inlet of the coal mill is uneven and unstable. A first ventilating duct, an air flow equalizer and a second ventilating duct of the flow-equalizing self-stabilization air quantity measuring device are linearly arranged and are sequentially communicated with one another, a plurality of spacers are fixedly connected into a flow equalizing area, a through hole is machined on a side wall of a testing area of the air flow equalizer, a speed testing tube penetrates through the through hole, portions of a tube body of the speed testing tube positioned outside the side wall of the testing area are respectively communicated with two differential pressure tubes and two cleaning air tubes, the speed testing tube is provided with a plurality of air inlet holes positioned on the side wall of the tube body in the testing area, a temperature transmitter is arranged inside the air flow equalizer, and a pressure transmitter is perpendicularly mounted on the outer side wall of the air flow equalizer. The flow-equalizing self-stabilization air quantity measuring device is used for measuring air quantities of inlets of coal mills.
Owner:HEILONGJIANG ELECTRIC POWER RES INST +1
Cleaning agent household heating system consisting of various metal materials and preparation method for cleaning agent
ActiveCN103834956AAvoid foulingGood corrosion inhibitionScale removal and water softeningSlagWater cycling
The invention relates to a cleaning agent for a household heating system consisting of various metal materials. The cleaning agent comprises the following components in percentage by weight: 3-20 percent of propylene glycol, 2.5-10 percent of a corrosion inhibitor, 0.1-5 percent of sulphamic acid, 5-25 percent of ethylene diamine tetra and the balance of demineralized water. The invention also provides a preparation method of the cleaning agent. The cleaning agent disclosed by the invention is compounded of an organic anti-scaling component and an organic acid and can effectively strip off and dissolve old scales in the household heating system equipment and prevent secondary water scales; the cleaning agent can effectively alleviate corrosion to metal materials of the household heating system equipment, effectively remove the water scales, rust slag and the like from the household heating system equipment and solve such problems of the household heating system caused by scaling as low heat transmission efficiency or water circulation blocking, so that all equipment in the whole household heating system can operate safely and economically, and the aims of reducing water pollution, saving energy and reducing consumption are fulfilled.
Owner:SHANGHAI INDAL BOILER RES INST
Ultra-high-voltage AC power grid high-voltage reactor optimization configuration method
InactiveCN107196313AImprove practicalityImprove reliabilityReactive power adjustment/elimination/compensationReactive power compensationTransient stateTransmitted power
The invention discloses an ultra-high-voltage AC power grid high-voltage reactor optimization configuration method, which comprises the steps: 1) determining a target framework structure of an ultra-high-voltage grid; 2) obtaining parameters of each electronic component in the ultra-high-voltage AC power grid; 3) establishing ultra-high-voltage power grid electromechanical transient and electromagnetic transient simulation models based on an ADPSS; 4) arranging system operation modes; 5) carrying out operating characteristic analysis on the ultra-high-voltage AC power grid having no parallel high-voltage reactors; 6) carrying out operation characteristic simulation calculation and analysis on the ultra-high-voltage power grid with installation position and compensation degree of the high-voltage reactor being taken into overall consideration; 7) calculating minimum level index of reactive play of the ultra-high-voltage AC power grid; 8) establishing an objective function according to relation of the reactive play of the ultra-high-voltage AC power grid, transmitting power and the compensation degree; 9) determining optimal compensation degree; 10) carrying out optimization configuration on the reactor of the ultra-high-voltage AC power grid; and 11) checking safety and stability of the ultra-high-voltage AC power grid. The method can be used for ultra-high-voltage AC power grid high-voltage reactor optimization configuration.
Owner:STATE GRID CORP OF CHINA +3
Visual display method of accident emergency repair and inversion based on distribution network
InactiveCN104951884AImprove management levelRealize panoramic visualization functionResourcesInformation technology support systemManagement levelAccident emergency
The invention discloses a visual display method of accident emergency repair and inversion based on a distribution network. The visual display method is characterized by comprising the following steps: The visual display method has the beneficial effects that (1) panoramic visual functions of power outage management, fault treatment and an operating state of a switch are realized through comprehensive analysis of the running situation, running risk and automation application effect of a main distribution network by adopting a visual panoramic display way; (2) the modernization requirements of safety, reliability, high quality, high efficiency and economic operation of power enterprises and broad users on an electric network can be satisfied; (3) the informatization management level of the power enterprises is increased.
Owner:YINCHUAN POWER SUPPLY COMPANY OF STATE GRID NINGXIA ELECTRIC POWER +2
Method for reducing boiler hearth abrasion through computer control
ActiveCN110285404ASafe and economical operationGuaranteed uptimeFuel supply regulationBoiler controlAutomatic controlAir volume
The invention relates to a method for reducing the boiler hearth abrasion through computer control. The method comprises the following steps that the negative pressure of an outlet of a hearth is kept unchanged, a primary fan is gradually increased until the maximum output of the fan, a DCS: centralized dispersion control system is used for automatically taking point and record the primary air volume F1 and the air chamber pressure value Pfslt, and an empty board resistance curve F1--Pfslt is drawn according to the data obtained by an experiment, and an empty plate resistance curve is simulated by means of the corresponding relation of the DCS system and the data. A circulating fluidized bedboiler is high in coal type adaptability, the service life and the utilization rate of the boiler are caused to be low, and the wear mechanism of the boiler has extremely intimate connection with the concentration of materials and the wind speed of the hearth; and according to the method, starting from a boiler control angle, the lowest primary air volume is determined through a cold state test, a proper material layer thickness is selected, and a strategy for slowing down the boiler hearth abrasion through automatic control of the computer is established
Owner:威立雅(哈尔滨)热电有限公司
Piping-main scheme boiler load coordinating control method
ActiveCN101451709BStable economic operationSafe and economical operationBoiler controlSteam pressurePower station
Owner:哈尔滨中远控制工程有限公司
Power grid future state model maintenance tool
The invention discloses a power grid future state model maintenance tool. The power grid future state model maintenance tool comprises a commissioning project future state model management module, a power grid internal storage management module, an adapter management module, and a model exporting module. The power grid future state model maintenance tool can be adopted for solving the problems that a model is built repeatedly and parameters are inconsistent, and source side maintenance, global sharing, distributed storage and unified management of the model are realized, so that the quality of the power grid model is improved, and a good basis is laid for power grid analog simulation. Through practical application of the power grid future state model maintenance tool, integrated and off-line analysis and control over a power grid can be realized, the capacity for dispatching and controlling the power grid is improved, the wide-range resource optimization and allocation capability is improved, the streamlined dispatching and management level is raised, and safe, stable, reliable and economic operation of the power grid can be guaranteed.
Owner:STATE GRID CORP OF CHINA +3
Integral sludge incineration system for circulating fluidized bed
PendingCN110748894AAffect the return effectGuaranteed pressureFluidized bed combustionIncinerator apparatusFlue gasFluidized bed
The invention discloses an integral sludge incineration system for a circulating fluidized bed, which includes an incinerator, a separator, a pneumatic distribution valve, a drying machine, a fine ashseparator, a condenser, a steam and water separator, a first blower, a tail heating surface, a dust remover, an induced draft fan and a chimney, wherein the upper part of the incinerator is connectedwith the separator and the tail heating surface respectively; the lower part of the separator is connected with the incinerator and the drying machine respectively through the pneumatic distributionvalve; dried sludge in the incinerator sequentially passes by the fine ash separator, the condenser and the steam and water separator, and then is conveyed into the incinerator under the action of thefirst blower; the tail heating surface is connected with the drying machine through circulating conduction oil, and high temperature flue gas inside the tail heating surface passes by the dust remover, and then is discharged from the chimney under the action of the induced draft fan. According to the invention, sludge drying and incineration are organically integrated, so that consumption of auxiliary fuel during sludge incineration is greatly reduced, and the drying and incineration technology is greatly simplified; and the system has the characteristics of simple operation, wide adjusting range, good control performance, low production cost, and the like.
Owner:TAOPU SEWAGE TRAEATMENT PLANT OF SHANGHAI CHENGTOU SEWAGE TREATMENT
Three-phase heating non-stick oily sludge pyrolysis device
PendingCN109678307ANon-stick panNo partial heat bulge crackingSludge treatment by pyrolysisByproduct vaporizationSlagSludge
The invention discloses a three-phase heating non-stick oily sludge pyrolysis device, so as to mainly solve the problem that treated discharges do not meet the standard when the conventional treatmentdevice treats wastes in an oil field. The three-phase heating non-stick oily sludge pyrolysis device is characterized in that a spiral material pushing vane (5) is fixed outside a rotating shaft (3);a circular protective wall (10) is fixed outside a barrel body (11); a heating cavity (8) is formed between the barrel body (11) and the protective wall (10); three exhaust gas inlets are formed in the bottom of the protective wall (10); a smoke discharging port (7) is formed in the top of the protective wall (10). The three-phase heating non-stick oily sludge pyrolysis device is simultaneously suitable for treating wastes such as waste slag liquid of an oil field, oil-enriched oil shale, various types of waste engine oil and living wastes, and the device cannot be coked and do not generate polluting discharges at the end of the treatment.
Owner:阮文渊 +2
Biomass energy and method for detecting degree of corrosion of biomass energy to superheater
InactiveCN109490180AReduce dust accumulationImprove combustionWeather/light/corrosion resistanceBiofuelsSlagSuperheater
The invention provides biomass energy and a method for detecting the degree of corrosion of the biomass energy to a superheater. A biomass material and a coal material are mixed and combusted, on theone hand, purposes of diluting alkali metal and reducing the content of chlorine element are achieved, the problems of dust accumulation, slag formation and corrosion are relieved, on the other hand,the condition of combustion is improved by interaction between biomass and a coal, the combustion efficiency is improved, and safe, economical and stable running of a boiler is ensured. The biomass and the coal are taken as the raw materials for blending combustion, reduction of the degree of corrosion of the superheater is explored by different mixing ratios, furthermore, the invention provides adetecting method to detect the degree of corrosion of the biomass energy to the superheater, and therefore, safe, economical and stable running of the boiler is ensured.
Owner:UNIV OF SHANGHAI FOR SCI & TECH
Airport navigation aid light regulator experiment table
ActiveCN105137253ASafe and economical operationStable economic operationElectrical testingElectrical resistance and conductanceCommunication interface
The invention discloses an airport navigation aid light regulator experiment table comprising an analog load which is connected with the output end of an airport navigation aid light regulator. The analog load comprises N power resistance branches which are mutually connected in series; multiple switching circuits which are respectively connected in parallel with all the power resistance branches, wherein connection of the power resistance branches connected in parallel with the switching circuits with the analog load or disconnection with the analog load through bypassing can be realized by controlling the switching state of the switching circuits; a current detection module; a communication interface; and a controller which is connected with the current detection module and the communication interface. A constant current calibration point test, an output open-circuit voltage test, a maximum output load capacity test and an insulating resistance online monitoring unit error test of the airport navigation aid light regulator can be realized.
Owner:DALIAN JIAOTONG UNIVERSITY
Client distribution intelligent system
InactiveCN105262213ASafe and economical operationImprove qualityCircuit arrangementsInformation technology support systemPower qualityPower factor
The invention relates to a client distribution intelligent system, comprising a display, a host, and a serial server which are successively in connection, and an electric energy quality on-line monitoring control device, a dynamic filtering compensation automatic controller and microcomputer on-line monitoring protection devices which are in connection with the serial server through an on-site bus. The system can guarantee the safe, stable and economic operation of client distribution system electrical equipment, and discover in an early stage hidden troubles of a distribution system so as to take measures for prevention. The system possesses the energy saving effects of: (1) eliminating harmful harmonic wave, improving electric energy quality and power factor, and reducing line loss; (2) balancing three phase power, prolonging the service life of equipment, and reducing operation costs through monitoring and analyzing electric energy quality; and (3) collecting the data of each electrical terminal under a software interface to perform visual management, and realizing electricity utilization controllable and adjustable according to actual electricity utilization demands, thereby reducing unnecessary electric energy consumption, and saving electricity.
Owner:HUBEI HUAHONG ELECTRIC POWER TECH CO LTD
Electric vehicle charging device and power grid coordinated interaction control system and method
ActiveCN113675839ARealize orderly chargingRealize safe and economical operation of distribution networkCharging stationsLoad forecast in ac networkAutomotive engineeringCharging station
The invention relates to an electric vehicle charging device and power grid coordinated interaction control system and method. The system comprises: a charging device used for outputting the electric energy of a power grid to an electric vehicle so as to charge the electric vehicle; a charging station monitoring system, wherein thecharging station monitoring system communicates with the charging device and is used for monitoring the working state of the charging device in real time and controlling the output power of the charging device according to an output power scheduling plan and a charging output power demand; an operation management system, wherein the operation management system communicates with the charging station monitoring system and is used for issuing the output power scheduling plan to the charging station monitoring system; and a power dispatching system, wherein thepower dispatching system communicates with the operation management system and is used for monitoring the load state of a power distribution transformer in real time and issuing a charging load dispatching plan to the operation management system in combination with the electrical load demand of the power grid. According to the invention, the output power of a charging station is monitored in real time, so that ordered charging of an electric vehicle and safe and economical operation of a power distribution network are realized, and safe, reliable and stable operation of the load of the charging station is ensured.
Owner:SHENZHEN AUTO ELECTRIC POWER PLANT +1
Hydropower station reactor configuration method and system
ActiveCN106208093BImprove reactive power regulation abilitySafe and economical operationAc network voltage adjustmentReactive power compensationInput impedancePower grid
The invention relates to a configuration method and system for an electric reactor of a hydropower station. The configuration method comprises the steps of obtaining input parameters in the configuration method for the electric reactor of the hydropower station; calculating input impedance of a grid-connected point of the hydropower station according to the input parameters in the configuration method; calculating unit leading-in-phase voltage regulation cost of the hydropower station when the electric reactor is not installed according to the input parameters in the configuration method and the input impedance of the grid-connected point of the hydropower station; establishing a mathematic optimization model configured to the electric reactor of the hydropower station according to the input parameters in the configuration method and the input impedance of the grid-connected point of the hydropower station; solving the mathematic optimization model to obtain an optimized target function value and a capacity optimal solution of the electric reactor; and determining whether the unit leading-in-phase voltage regulation cost is greater than or equal to the optimized target function value or not, if so, outputting prompting information of the electric reactor with the capacity optimal solution as the installed capacity. Basis is provided for the reasonable configuration of the electric reactor of the hydropower station, thereby improving the reactive power regulation capability of the hydropower station, and realizing safe and economic operation of the power grid.
Owner:HEYUAN POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
An ammonia-water mixed working fluid power cycle power generation system and coordinated control method
InactiveCN108757070BReduced drag characteristicsImprove adaptabilityEngine componentsSteam engine plantsWorking fluidPower cycle
Owner:XI AN JIAOTONG UNIV
Economic optimized dispatching method for energy storage power stations
ActiveCN103001331BImprove working conditionSafe and economical operationElectrical storage systemTransformerLow voltage
Owner:CHINA ELECTRIC POWER RES INST +1
Novel battery module matrix type recombination structure in energy storage battery cluster and control method
InactiveCN114421032AImprove efficiencyExtended service lifeCells structural combinationCell component detailsControl engineeringElectronic switch
The invention discloses a novel battery module matrix type recombination structure in an energy storage battery cluster, which comprises a battery bracket, a plurality of groups of battery modules are arranged in the battery bracket, the plurality of groups of battery modules are uniformly distributed on the battery bracket in an array structure, and module output electronic switches are arranged on the battery modules. A plurality of groups of battery module busbars used in cooperation with the module output electronic switch and the battery module are fixedly connected to the battery support in the up-down direction through supporting pieces, and a plurality of groups of bypass electronic switches used in cooperation with the battery module are arranged on the two sides of the battery support in the up-down direction; according to the invention, real-time online precise maintenance of the battery module monomers is facilitated, the method is not influenced by the serial connection form of the battery modules in the current battery cluster, and when any one battery module is in a fault state, only the single battery module needs to be isolated, so that the maintenance efficiency is improved. Therefore, safe and economical operation of the large-scale energy storage system under highly consistent working conditions can be ensured.
Owner:邓琳
Composite-type water quality protective agent for household heating system
ActiveCN102633373BWith anti-scalingWith corrosion inhibitionScale removal and water softeningSaline waterWater quality
The invention relates to a composite-type water quality protective agent for a household heating system, wherein the composite-type water quality protective agent comprises the following components in percentage by weight: 3-20% of propylene glycol, 2.5-10% of corrosion inhibitor, 5-20% of triethanolamine, 3-10% of boric acid, 0.1-5% of dispersion agent, 0.1-2% of bacteriacide and the balance of water. The composite-type water quality protective agent provided by the invention is suitable for being used in a household heating system in China and has the effects of scale inhibition, corrosion inhibition, sterilization and the like, and has the anticipated effect in the household heating system, thus each device in the whole heating system can run safely and economically, and the aims of water pollution reduction and energy conservation and consumption reduction are achieved.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO
Cleaning agent for domestic heating system composed of various metal materials and preparation method thereof
ActiveCN103834956BAvoid foulingGood corrosion inhibition effectScale removal and water softeningSlagWater circulation
Owner:SHANGHAI INDAL BOILER RES INST
Draining and oxygen adding method for full-automatic heater
ActiveCN102745753BTroubleshoot blocked technical issuesInhibit flow accelerates corrosionCorrosion preventionWater/sewage treatmentHydrogenOxygen content
The invention discloses a draining and oxygen adding device for a full-automatic heater. The device comprises the following components: a PLC; a pressure detector for collecting a pressure signal in pipeline at an oxygen adding point, and transmitting the pressure signal to the PLC; a dissolved oxygen content detector for collecting a dissolved oxygen content at a detecting point and transmittingthe dissolved oxygen content signal to the PLC; an oxidation-reduction potential detector for collecting an oxidation-reduction potential at the detecting point and transmitting the oxidation-reduction potential signal to the PLC; a hydrogen conductivity detector for collecting hydrogen conductivity at the detecting point and transmitting the hydrogen conductivity signal to the PLC; and a flow controller connected with an oxygen source and for controlling oxygen addition flow according to the PLC command. The invention also discloses a draining and oxygen adding method for the automatic heater. The oxygen adding device of the invention can avoid clogging of a drainage valve on a high-pressure heater shell side pipeline, and maintain safe and economical operation of the unit at an OT working conditions.
Owner:ZHEJIANG ZHENENG TECHN RES INST
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