91results about How to "Ensure power supply stability" patented technology

The invention discloses an adaptive kernel function and instantaneous frequency estimation-based fault arc detection method of a photovoltaic system. The adaptive kernel function and instantaneous frequency estimation-based fault arc detection method comprises the steps of acquiring a signal xt by a time window with TNCT length, performing non-linear frequency modulation wavelet transform to obtain a iteration time-frequency diagram of the xt, and constructing characteristic quantity, used for judging moment when frequency spectrum energy is increased, according to a frequency component in theselected iteration time-frequency diagram; and obtaining a corresponding matrix distribution form of the xt in the time-frequency domain by adaptive optimal kernel time-frequency distribution after an abrupt changing point where the energy is increased is found out, performing square sum on the matrix according to time dimension to obtain a line vector, selecting a plurality of frequency bands, performing frequency-dimensional integral operation on each frequency band to obtain a plurality of characteristic values input into a trained naive bayesian model, and judging a state of the photovoltaic system in a current time frame. By a plurality of effective time-frequency characteristics, a fault arc in the photovoltaic system is accurately identified, meanwhile, no misoperation under various types arc working conditions also can be ensured, and the photovoltaic system safely and stably run.

The invention provides a lithium battery based single firing line power-taking apparatus. The power-taking apparatus comprises a load and an intelligent switch; the intelligent switch comprises a static power-taking circuit, a relay, a lithium battery and a control unit; one end of the load is connected with the firing line while the other end of the load is connected with the input end of the static power-taking circuit; the output end of the static power-taking circuit is connected with one input end of the lithium battery for statically charging the lithium battery; another output end of the static power-taking circuit is connected with a null line; the output end of the lithium battery is connected with the input end of the control unit for supplying power to the control unit; the output end of the control unit is connected with one input end of the relay for controlling the switch-off or switch-on of the relay; and another input end of the relay is connected with the other end of the load for controlling the switch-off or switch-on states of the load. The lithium battery based single firing line power-taking apparatus has the beneficial effects that the power-taking apparatus has the relatively stable power supply, and time delay does not exist in turning off the load.

A server integrating system contains at least one rack, and the rack contains servers and a rack management board. The rack management board is connected to the chassis management board through a transmission line, in which the chassis management board sends the information of the servers to the rack management board, and the chassis management board passes the data to the rack management board.

The invention puts forward an alternating current-direct current active electric power distribution network voltage and reactive power coordinated control method comprising the following steps: electric power distribution network voltage running states are segmented into three bands that are respectively a normal state, an early warning and an emergency state according to node voltage levels of an electric power distribution network; in the normal state, global optimization operation is perform, dynamic reactive power of a flexible direct current device is replaced with static state reactive power of a discrete reactive power device, and a dynamic reactive reserve capacity of the electric power distribution network can be improved; in the early warning state, intercoordination of local control and centralized control is realized via multiple reactive power sources, and voltage threshold-crossing nodes can be corrected in the early warning state; in the emergency state, the flexible direct current device is used for providing emergency support to the voltage threshold-crossing nodes, and the electric power distribution network is enabled to transit to the early warning state till the electric power distribution network goes back to the normal state.

The invention provides a power generation energy storage peak regulation system and method. The system comprises a control module, a ground surface reservoir, a water turbine, an underground reservoirand a water pump; when stably-output electric quantity exceeds the required electric quantity threshold value, an energy storage signal is output, when the needed electric quantity exceeds the stably-output electric quantity set threshold value, a power generation signal is output, a draining valve is arranged on a draining opening of the ground surface reservoir, a water inlet of the water turbine communicates with the draining opening of the ground surface reservoir, the power generation end of the water turbine is connected with the power generation end of a power station, the controlled end of the water draining valve receives a power generation signal, starting is carried out, and the water turbine supplements electric amount to the power station; the underground reservoir is locatedbelow the ground surface reservoir, the power supply end of the water pump is connected with the power generation end of the power station, the first end of the water pump communicates with the underground reservoir, the second end of the water pump communicates with the ground surface reservoir, after the controlled end receivers the energy storage signal, starting is carried out, and water in the underground reservoir is pumped to the ground surface reservoir. The waved landform of the ground surface reservoir and the underground reservoir is used, the water pumping and energy storage manner is adopted, the power supply amount of the power station is subject to peak regulation, and the power supply stability is ensured.

The invention provides a power transmission line covered ice monitoring device based on a rotation reference conductor. The power transmission line covered ice monitoring device at least comprises the reference conductor, a hanging support and a tension sensor. The reference conductor can be rotationally connected with the tension sensor. The tension sensor is fixedly connected with the hanging support. An ice melting unit is arranged in the reference conductor. The reference conductor rotates under the actions of wind force and covered ice gravity so that uniform cylindrical covered ice can be formed on the surface of the reference conductor; the tension sensor is utilized for monitoring the weight of the covered ice to carry out simulated monitoring on the covered ice of a power transmission line, the covered ice of the power transmission line can be effectively monitored, the effect of the environment on the monitoring result is effectively avoided, and the covered ice monitoring accuracy can be greatly improved.

The invention discloses a multi-path power supply management method and multi-path power supply device applied to electronic equipment. Specifically, one path of power supply is selected from multiplepaths of power supply lines according to a priority strategy on the basis of the online condition of each path of power supply; and electric energy is provided for a core module and a peripheral module of the electronic equipment based on a set power-on time sequence. According to the multi-path power supply management method and multi-path power supply device applied to the electronic equipmentof the invention, priority-based power supply switching management and control can be provided for the electronic equipment with multi-path power supply, the power supply stability can be effectivelyensured in different scenes, and the loss of devices of the equipment can also be reduced; moreover, a low-cost hardware architecture optimization scheme which is simple in topological structure and can be implemented through a small number of components is designed while the problem of switching of multiple types of power supplies is solved; the power supply stability and reliability can be obviously improved through the method and device provided by the technical schemes of the invention, and the overall power supply efficiency is greatly improved. The invention further correspondingly discloses electronic equipment applying the multi-path power supply management method or the multi-path power supply device.

The invention provides an intelligent control system applied to a guest room. The system comprises a Doppler sensor which is arranged on the roof of the guest room to transmit a microwave signal to ahuman body and receive a feedback signal of the human body, a filter amplifier module which is used for receiving the feedback signal acquired by the Doppler sensor and carrying out noise filtering and signal amplification on the feedback signal, a control module which receives the feedback signal filtered and amplified by the filter amplifier module, and calculates the amplitude and phase of thesignal to acquire the heartbeat number and breath number of the human body, and a power control module which is used for acquiring the heartbeat number and breath number, which are acquired by the control module, of the human body. If the heartbeat number and breath number of the human body are zero, the power control module cuts off the power line of the guest room. If the heartbeat number and breath number of the human body are not zero, the power control module turns on the power line of the guest room. The system uses the Doppler effect, measures the breath and heartbeat without touching the human body, and turns on and off the power supply of the guest room according to whether a person is in the guest room or not.

The invention relates to a dusting router. The dusting router comprises a router body, a charger and a storage battery, wherein the charger is fixedly arranged on one side of the router body; an output end of the charger is connected with the storage battery through a line; the storage battery is connected with an input circuit of the router body; the storage battery is positioned in the router body; an upper end of the router body is provided with a detachable antenna; and the top of the router body is provided with a dust scraper for automatically scraping dust. Compared with the prior art, the dusting router has the advantage that the charger can be used for charging the storage battery, so that the power supply stability of the router body is ensured; even if the power fails, the normal running can be ensured, and convenience is improved; and the dust scraper can be used for scraping dust on the top of the router body, so that the router body can keep clean.

The invention discloses an adjusting and optimizing method utilizing PID to achieve fluctuations of CPU and internal storage VR output voltage. CPU and internal storage VR output voltage can be adjusted via adjustments of parameters of PID in the CPU and an internal storage main chip, so the CPU and internal storage VR output voltage can be always remained in a small fluctuant range under various load conditions; and server system power supplying stability can be enhanced. R&D engineers can adjust fluctuations of CPU and internal storage VR output voltage without welding an element component via a solder and only requiring PID parameter adjustments on a software interface of a digital power supply, so debugging efficiency of the engineers can be improved and R&D period is shortened; PID adjustments and VR bode diagram measurements are combined to achieve optimized PID parameters, so stability of the CPU and internal storage VR output voltage of the server in all user application scenes can be guaranteed and product quality is improved.

The invention discloses a power supply control method and device, a storage medium and a power supply device. The method comprises instructing a battery pack to supply power to a load during a first time period; determining whether the power output of a power generation system satisfies the power consumption of the load when it is determined that the battery pack is discharged in the first time period, wherein the power generation system includes at least one of a photovoltaic power generation device and a wind power generation device; when it is determined that the power output satisfies thepower consumption of the load, instructing the power generation system to supply power to the load; when it is determined that the power output does not satisfy the power consumption of the load, instructing a mains power access system and the power generation system to jointly supply power to the load. The power supply control method of the present invention can improve the resource utilization rate of the battery pack by controlling the charging and discharging periods of the battery pack.

The present invention discloses a construction site intelligent electricity taking device. The device comprises a box body, hollow rotating plates are rotationally connected with and arranged at the upper and lower ends of a mounting groove through bearing pieces, a conductive rod is fixedly arranged on a conductive rotating ring, and an industrial waterproof socket is electrically connected to aconnecting wire. Air inlet pipes are symmetrically arranged on the side, close to the box body, of the bottom plate, action pipes and air outlet pipes are arranged on the air inlet pipes in a communicating mode, first one-way valves are arranged in the air outlet pipes, sliding plates are movably arranged in the action pipes, and second one-way valves are arranged in the air inlet pipes. Accordingto the construction site intelligent electricity taking device, the industrial waterproof socket can rotate by 360 degrees without dead angles so as to meet the electricity taking requirements of construction tools from all directions, abrasion to an insulating layer due to wire bending is prevented, and the device is convenient to move, has the damping function, automatically conducts air exchange and cooling while transferring and damping are conducted, and is centralized in function, convenient to use and quite worthy of popularization.

The invention relates to a spiral tool electrode and a bipolar electrolysis grinding processing method thereof, and belongs to the field of electrolytic grinding composite processing. The spiral toolelectrode comprises a tool bar and a tool head connected with the tool bar, wherein a spiral groove is formed in the periphery of the tool head, a grinding material layer covers the end head of the tool head, an electric insulation layer is closely jointed to the periphery of the tool head and the end surface of the tool bar, and an inert metal layer is closely jointed to the electric insulation layer. In the bipolar electrolysis grinding processing course, electric potential of the inert metal layer is higher than that of a workpiece, and for a processed surface and a nonprocessed surface ofthe workpiece, most of electric potential of a grinding material layer is attracted by the inert metal layer, and therefore, stray current corrosion can be restrained. Besides, insoluble electrolyticproducts can accelerate the process of discharging outwards under the action of spiral delivery of the spiral groove, so that the insoluble electrolytic products can be prevented from being adhered tothe surface of the workpiece. According to the spiral tool electrode and the bipolar electrolysis grinding processing method thereof, the efficacy, the stability, the precision and the surface integrity of metal small pieces subjected to electrolysis grinding processing can be effectively improved, and the technique is promoted to be promoted and industrially applied in the field of microscale processing.

The invention belongs to the field of new energy, and particularly relates to an assembled and combined type new energy battery pack. The assembled and combined type new energy battery pack comprises a base, a top seat, a shell and batteries, wherein a mounting groove is formed in the top surface of the base, a shell is inserted into the mounting groove, a plurality of battery holes are formed in the top surface of the shell, the batteries are slidably mounted in the battery holes, the top seat is mounted on the top surface of the shell, connecting grooves are formed in the two sides of the base and the two sides of the top seat, pin rods are slidably mounted in the connecting grooves in the two sides, and fixing structures are arranged between the top faces of the two sides of the base and the bottom faces of the two sides of the top base. The batteries are installed in the battery holes, the fixing structures are used for driving the top seat and the base to fix and lock the shell to form an independent battery module, and the pin rods are used for penetrating into the connecting grooves, thereby forming the battery pack; and when a battery is damaged, a single battery module is replaced in order to ensure the power supply stability of the battery pack, so maintenance personnel can conveniently replace and maintain the battery, maintenance cost is reduced, and resources are saved.

A startup control circuit possessing an acceleration startup function and an operation method thereof are applied in a power supply. A primary side winding is coupled with a transformer through a power switch so as to switch and control the transformer, and then an output voltage of the power supply is adjusted. The startup control circuit comprises a capacitor and a startup control apparatus. The startup control apparatus comprises an enabling switch unit and a power supply control unit. Through controlling conduction and cut-off of the enabling switch unit of the startup control apparatus, the control of the acceleration startup of the power supply can be provided and power supply stability of the power supply can be ensured.

The invention discloses a three-phase alternating-current building voltage-stabilizing electricity-saving device which can stabilize the voltage and filter out harmonic waves of a power grid. The three-phase alternating-current building voltage-stabilizing electricity-saving device comprises a harmonic filtering circuit, a voltage stabilizing and regulating mechanism, a sampling circuit, a master controller and a control terminal. The harmonic filtering circuit, the voltage stabilizing and regulating mechanism, the sampling circuit and the control terminal are all connected to the master controller. The harmonic filtering circuit and the voltage stabilizing and regulating mechanism are connected between an external power grid input end and a load output end in parallel. The sampling circuit is further connected with the voltage stabilizing and regulating mechanism. Due to the cooperation among the harmonic filtering circuit, the voltage stabilizing and regulating mechanism, the sampling circuit, the master controller and the control terminal, the three-phase alternating-current building voltage-stabilizing electricity-saving device has the function of stabilizing the voltage and the function of filtering out the harmonic waves of the power grid.

The invention discloses a device for heating and purifying quantitative industrial wastewater. The device comprises a power supply module, an input button, a water level detection module, a heating module, a single chip microcomputer, an inlet electromagnetic valve, a stirrer, a purifying liquid electromagnetic valve and an outlet electromagnetic valve. According to the device for heating and purifying the quantitative industrial wastewater, a wastewater quantitative treatment technology is adopted, the quantitative wastewater is treated every time, and since the amount of the wastewater is constant, the dosage of purifying liquid is also constant, so that a maximum ratio is achieved, and waste is avoided; in addition, by adding the steps of stirring and heating, full mixing of the wastewater with the purifying liquid can be achieved, and the reaction efficiency of the wastewater and the purifying liquid can be facilitated through heating; the entire device is controlled intelligentlythrough the single chip microcomputer, so that no manual operation is needed, and since the single chip microcomputer is also provided with power by adopting an intelligent power supply, the stabilityof power supply of the device can be ensured.

The invention provides a low-voltage direct-current redundant power supply control system, and the system comprises a transformer T1, a rectifying circuit Z1, a main power supply circuit, a storage battery BAT, a storage battery charging management circuit, a storage battery switching control circuit, a first relay, a second relay and a storage battery reverse connection detection control circuit. A normally-closed switch K1 of the first relay is arranged in a power-on loop of a primary winding of the transformer T1, a normally-closed switch K2 of the second relay is arranged between a secondary winding of the transformer T1 and the ground, and the storage battery reverse connection detection control circuit is used for detecting whether the storage battery is reversely connected or not and controlling the first relay and the second relay to be disconnected; the positive output end of a secondary winding of the transformer T1 is connected with the input end of the rectifying circuit Z1, the output end of the rectifying circuit Z1 is connected with the input end of the main power supply circuit, and the output end of the main power supply circuit supplies power to a load; the input end of the storage battery switching control circuit is connected to the positive electrode of the storage battery BAT, the output end of the storage battery switching control circuit supplies power to a load, and the control input end of the storage battery switching control circuit is connected with the detection output end of the main power supply circuit.

The invention relates to a 5G fusion intelligent power distribution network energy management method based on DQN, and belongs to the technical field of communication. According to the task unloading method with the energy queue perception based on the DQN, high-dimensional complex environment state information can be effectively processed. And an optimal energy management decision is made through deep reinforcement learning, and effective compromise between cost reduction and efficiency increase of the 5G base station and power supply stability is realized. New energy consumption is promoted, power grid energy supply and demand balance is maintained, and cost reduction and efficiency improvement effects of the 5G base station are improved. The power supply stability performance and the power service differentiation QoS demand can be considered at the same time, and the coupling relation between the information flow and the energy flow is considered, that is, the influence of communication demands such as transmission time delay and bit error rate on the battery state of the energy storage system is considered. An energy storage operator can learn a long-term optimal energy management strategy while guaranteeing the power supply stability of the base station, and the communication requirements of stable and reliable transmission of power service data are met.

The invention belongs to the technical field of smart grids, and particularly relates to a method for a battery to participate in wind power fluctuation suppression. The method stabilizes wind power fluctuation based on battery energy storage, and effectively suppresses grid fluctuation caused by wind power instability. The method comprises the steps that different control methods are used for wind farms with different installing capacities; battery input or cutoff calculation is carried out for wind farms with different installing capacities; if s is greater than 1 and less than or equal to 5, whether the battery is put into climbing is judged; Pd-Pd1 / 1<-2Pz / 3 is judged at the time of descending; if s is greater than 5, whether the battery is put into climbing is judged, and then the judgment of Pd-Pd1 / 1<-100 is carried out on descending; and a mathematical model for suppressing wind power fluctuation with the battery in the states of wind power climbing, flatting and descending. According to the invention, battery energy storage is carried out on the wind power of a wind farm; in the case of large wind power output, battery energy storage is carried out to consume partial wind power to ensure the stability of a grid; frequency fluctuation caused by the fact that a traditional unit cannot meet requirements due to the increase of a load is solved; and the power supply reliability and stability of a power system are ensured.

The invention discloses a valve opening control method and a valve closing control method of a meter valve. The valve opening control method and the valve closing control method of the meter valve solve the technical problem of unstable system power supply in the valve opening process in the prior art. In the valve opening control method of the meter valve, when a control unit controls an execution part to execute valve opening actions, the control unit outputs a valve opening drive signal by N times (N is a positive integer greater than 1), after receiving the valve opening drive signal, theexecution part executes the valve opening actions to enable a valve to reach the valve opening position state after N times of valve opening actions from the valve closing state. In the valve closingcontrol method of the meter valve, when the control unit controls the execution part to execute valve closing actions, the control unit outputs a valve closing drive signal by M times (M is a positiveinteger greater than 1), and the execution part executes the valve closing actions after receiving the valve closing drive signal so that the valve reaches the valve closing position state after M times of valve closing actions from the valve opening state.

The invention relates to a wind and light electricity generation LED streetlamp and belongs to the technical field of streetlamps. The wind and light electricity generation LED streetlamp comprises abase, an upright and a main controller. The upright and the main controller are arranged on the base. An LED lamp head is arranged at the top of the upright. An installing seat and a wind driven generator are arranged at the top of the upright. The installing seat is provided with a solar panel and a motor used for driving the solar panel to rotate relative to the installing seat. The LED lamp head, the solar panel, the motor and the wind driven generator are all in electric connection with the main controller. According to the wind and light electricity generation LED streetlamp, solar energycan be converted into electric energy by means of the solar panel, meanwhile, wind energy can also be converted into electric energy through the wind driven generator, and thus electricity supply stability is ensured. The motor driving the solar panel to rotate is arranged, thus the solar panel can rotate relative to the installing seat, the effect that the solar panel can be always aligned withsunlight is ensured, and the energy conversion effect is better. The wind and light electricity generation LED streetlamp is simple and reasonable in structure arrangement.

The invention provides a cable monitoring equipment power supply system combining multiple energy taking modes. The cable monitoring equipment power supply system comprises a solar module, an online power supply module, a vibration energy taking module, a temperature difference power generation module, a storage battery, an auxiliary storage battery, a judgment control module, a charging and discharging management circuit I and a charging and discharging management circuit II. The output ends of the solar module, the online power supply module, the vibration energy taking module and the temperature difference power generation module are connected with the input end of the judgment control module, and the output end of the judgment control module supplies power to a load, the charging and discharging management circuit I and the charging and discharging management circuit II. The charging and discharging management circuit I is used for managing charging and discharging of the storage battery, the charging and discharging management circuit II is used for managing charging and discharging of the auxiliary storage battery, and the power supply end of the judgment control module is connected with the positive electrode of the auxiliary storage battery, so that the power supply stability of electric power detection equipment is ensured, and continuous and stable operation of power monitoring equipment is ensured.

A power-on reset circuit arranged to generate a reset signal according to a power supply voltage includes: a power supply voltage detector, a holding circuit, a reference voltage generator and a reset determination circuit. The power supply voltage detector is controllable by the reset signal, and arranged to detect a level of the power supply voltage to generate a detection signal. The holding circuit is arranged to output an enablement signal according to the detection signal, wherein the holding circuit selectively maintains a level of the enablement signal according to a level of the detection signal. The reference voltage generator is controllable by the enablement signal to selectively output a reference voltage. The reset determination circuit is arranged to output the reset signal according to the power supply voltage and the reference voltage.

The invention discloses a beryllium-copper alloy battery probe for a new energy automobile and a processing technology thereof, and particularly relates to the technical field of battery probes. The beryllium-copper alloy battery probe comprises beryllium, zirconium, nickel, copper and a surface treating agent. The conductive performance of the beryllium-copper alloy battery probe can be effectively enhanced, the low-temperature performance of the probe can be effectively improved, meanwhile, it is guaranteed that the probe keeps good conductive performance at a low temperature, and then the power supply stability of an automobile battery is guaranteed. The zirconium metal is added into beryllium-copper alloy so that grains of the beryllium-copper alloy can be effectively refined, and the strength of the beryllium-copper alloy is further improved. Nano-silver particles and nano-zinc oxide particles can be formed, CVD processing treatment is carried out, graphene is formed on the surface of copper alloy foil, the nano-zinc oxide particles are reduced to form nano-zinc, nano-silver and the nano-zinc are doped into the graphene, the conductivity of the graphene can be effectively enhanced, and the graphene is embedded into the copper alloy foil. The conductive performance of the copper alloy foil can be effectively enhanced, and the low temperature resistance of the copper alloy foil can also be effectively enhanced.

The invention relates to a router. The router comprises a router body, a charger and a storage battery, wherein the charger is fixedly placed on one side of the router body, an output end of the charger is connected with the storage battery through a circuit, the storage battery is connected with an input circuit of the router body, the storage battery is located in the router body, a dismountable antenna is arranged at the upper end of the router body, a solar cell panel is arranged at the top of the router body, and the solar cell panel is connected with the storage battery through a circuit. Compared with the prior art, the charger of the router can charge the storage battery, the solar cell panel can charge the storage battery, a charging pathway is enlarged, power supply stability of the router body is guaranteed, and even in power failure, normal running of the router can be guaranteed, and therefore convenience is improved.

The invention discloses a distributed power supply system and power supply method. The system comprises a distributed power supply, a controller, and a power supply management mechanism. The distributed power supply and the controller are in mutual signal connection by the power supply management mechanism. A power grid in a specific area is divided into a plurality of regions and thus monitoring of regional powers and electric energy qualities is realized, so that the power distribution can be adjusted autonomously and stability and reliability can be improved. With an automatic bus transfer device, switching between a local power grid and a large power grid can be realized, thereby guaranteeing stable power supplying of the local power grid and avoiding a phenomenon of power grid paralysis due to the large power grid can be avoided. The system and method are suitable for popularization and application.