292 results about "Electrical efficiency" patented technology

The invention discloses a spacing-adjustable magnetic steel wire electricity-taking clamp, and aims to solve the problems of poor stability, difficult installation of an electricity-taking clamp and poor adaptability in the adsorption electricity-taking process of an existing magnetic steel wire. The electricity taking clamp comprises a clamping assembly, an adjusting assembly, a fixing assembly and a plurality of magnetic steel wires, the clamping assembly is connected with the adjusting assembly, and the fixing assembly is connected with the clamping assembly; the adjusting assembly is used for adjusting the clamping width of the clamping assembly, the clamping assembly abuts against the circuit breaker, the fixing assembly is matched with the clamping assembly to fix the multiple magnetic steel wires, and the multiple magnetic steel wires are electrically connected with the circuit breaker. The electricity taking clamp can be adapted to circuit breakers with different widths, so that the universality of the electricity taking clamp is improved, and the cost is reduced; the adaptation process during power taking of the circuit breaker is saved, the power taking operation time is shortened, and the power taking efficiency is improved. The matching efficiency of the magnetic steel wire and the screw hole of the circuit breaker is improved, the wiring operation is simplified, the clamping assembly abuts against the circuit breaker, the stability of the power taking clamp after installation is ensured, and continuous power supply is guaranteed.

The invention relates to the technical field of industrial robot fault diagnosis, and discloses a fault early warning and remote diagnosis method for an industrial robot electrical control system, and the method comprises the steps: obtaining a mechanical load parameter through a potential load model, an inertia load model and a basic dynamics model, obtaining an electrical state parameter through an electrical efficiency model, and carrying out the fault early warning and remote diagnosis. A correction factor is generated through a correction model in combination with the environment temperature, a dynamic current threshold value is calculated through a threshold value model based on the correction factor and a basic current threshold value, and finally health scores and fault early warning information are output through a diagnosis model in combination with the vibration acceleration and servo ring following errors. According to the method, mechanical, electrical and environmental multi-source parameters are fused, dynamic threshold adjustment and multi-dimensional health assessment are realized, normal working conditions and abnormal states are effectively distinguished, the fault early warning accuracy is remarkably improved, the false alarm rate is reduced, and a reliable remote diagnosis scheme is provided for the industrial robot.

The invention relates to the technical field of electronics, and discloses a power supply method, a readable storage medium, a chip and electronic equipment. The electronic equipment can store the corresponding relation between the voltage parameters of the power supply modules and the phase cutting current thresholds corresponding to different power supply groups. In the operation process of the electronic equipment, the current voltage parameter of the power supply module can be obtained, and the phase cutting current threshold value matched with the current voltage parameter is determined based on the corresponding relation. And then, the electronic equipment can supply power to the load through the power supply group which corresponds to the current output current and has the highest power supply efficiency according to the relationship between the current output current of the display screen power supply module and each determined phase cutting current threshold value. Therefore, since the phase cutting current threshold is matched with the current input voltage and the current output voltage of the power supply module, the power supply module can work under the condition of a power supply phase number with relatively high efficiency, so that the power supply efficiency of the power supply module for the load is improved, and the power consumption of the electronic equipment is reduced.

The invention relates to the technical field of integrated circuit power supply, in particular to a modular multi-stage distributed power supply architecture and method for a whole wafer computing system, the architecture comprises a computing wafer, a power supply module, a bearing substrate and an integrated heat dissipation system, the computing wafer is integrated with various computing units with different voltage requirements, and the power supply module is connected with the integrated heat dissipation system. The power supply module is integrated with the computing wafer through a high-density interconnection interface, a multi-stage power supply topology is adopted in the power supply module, the power supply module comprises a first-stage central power management unit, a second-stage distributed voltage regulation unit array, a high-density embedded capacitor array and a global multi-domain power management integrated circuit, and the bearing substrate is used for bearing related parts. The integrated heat dissipation system carries out differential heat dissipation according to different heat dissipation densities. According to the invention, global optimization of power supply efficiency, precision and thermal management can be realized, and the complex power supply problem of the whole wafer system can be effectively solved.

The invention relates to the technical field of power system optimization, and discloses a charging load estimation and charging mode optimization method based on an electric vehicle. According to the method, a source load storage-medium voltage distribution network collaborative planning framework is initialized, and charging station geographical distribution and user charging behavior modes are integrated; collecting charging load sequence data in real time, and judging a charging load control state through a volatility analysis algorithm; when the charging load control is in an unstable state, synchronously analyzing voltage fluctuation characteristics and charging power change characteristics of the power distribution network, and generating a charging efficiency evaluation value; dividing the charging effect into three levels of high efficiency, conventional and low efficiency based on the evaluation value; for a conventional grade charging effect, a time sequence decomposition technology is adopted to extract a load trend component, and an overall load stability index is calculated; and fusing the charging efficiency evaluation value and the overall load stability index, and outputting a charging power adjustment instruction. The method effectively improves the operation stability and the charging efficiency of the power distribution network.

The invention discloses a power grid intelligent power flow control method based on an improved cuckoo search algorithm. The method comprises the following steps: firstly, constructing a mathematical model of an AC-DC hybrid system, analyzing the characteristics and interaction of each device in the system, and determining a composite function taking the minimization of power generation cost, active loss and generator voltage deviation as targets according to an operation target; and then, decomposing the complex objective function into a plurality of sub-problems through hierarchical processing, and realizing respective solving. In hierarchical calculation, an improved cuckoo algorithm is adopted for optimization in a solution space, and an optimal power flow distribution and control strategy is obtained. And finally, intelligent layered power flow control of the alternating-current and direct-current hybrid system is realized according to an optimization result. According to the invention, the system response speed and the regulation efficiency are obviously improved, and the effect in the aspect of optimized operation is outstanding; compared with the traditional Cuckoo search CS algorithm and NSGA algorithm, the cost consumption is respectively saved by 2.21% and 4.49%; the experimental model is low in weekly average cost and high in power transmission efficiency, the power transmission efficiency is effectively improved, and the loss cost is reduced.

The invention discloses a wind power variable pitch intelligent control method, and belongs to the field of wind power generation control. Aiming at the problems of wind speed abrupt change response lag, poor blade aging adaptation and low load control precision of existing variable pitch control, the method comprises the following steps: firstly, collecting real-time wind speed, blade strain, wind wheel rotating speed and blade historical data; predicting a short-term wind speed by using an improved ARIMA model, calculating a blade aging degree in combination with strain data, and determining a correction coefficient; then taking the predicted wind speed, the real-time strain and the correction coefficient as input, constructing a multi-target control model, and solving an optimal pitch angle through a particle swarm optimization algorithm; and finally, performing adjustment and performing real-time feedback and correction to form closed-loop control. The method can improve the variable pitch response speed, is adaptive to the full life cycle of the blade, balances the power generation efficiency and the unit safety, and is suitable for a multi-power-level wind turbine unit.

The application discloses a kind of kiln flue gas waste heat grading circulation power generation method and system, adopt multi-stage purification and temperature utilization combination, first, kiln flue gas is carried out component analysis and desulfurization purification treatment, establish layered purification chain and identify acid dew point area, form safe purification flue gas area by material adaptability evaluation and corrosion control measure;Then, temperature gradient analysis and temperature field reconstruction are carried out to purified flue gas, establish heat grade distribution mechanism and form cascade thermal energy flow, realize the complementary use of different temperature section heat source;Further, build the cascade power generation system of water vapor main cycle and organic working medium auxiliary cycle, integrate magnetic suspension bearing technology to improve auxiliary cycle power generation efficiency;Through heat matching degree monitoring and mismatch detection, establish heat balance parameter and optimize circulation network;Finally, build energy transfer matrix, through generator coupling analysis and speed coordination control, form distributed power generation configuration and complete stable electric energy output, realize the efficient use of waste heat.

The invention provides an end-cloud collaborative equipment energy-carbon efficiency real-time prediction method and system, and relates to the technical field of energy-carbon efficiency prediction.The method comprises the steps that an equipment end side collects current data, vibration data and temperature data of equipment in real time, and electrical energy efficiency characteristic parameters, mechanical energy efficiency characteristic parameters and thermodynamic energy efficiency characteristic parameters are extracted; the equipment end side calculates a cross-domain coupling coefficient, an efficiency health index and a characteristic parameter fluctuation rate, generates an energy efficiency diagnosis report and uploads the energy efficiency diagnosis report to the cloud platform; the cloud platform dynamically dispatches the basic prediction model and outputs an equipment power utilization efficiency prediction value; the cloud platform performs energy efficiency attenuation correction on the equipment power utilization efficiency predicted value to obtain a corrected equipment power utilization efficiency predicted value; and the cloud platform outputs an energy-carbon efficiency prediction value of the equipment through carbon energy efficiency conversion calculation based on the real-time carbon emission factor of the power grid and the corrected power utilization efficiency prediction value of the equipment. The technical problems that in the prior art, energy-carbon efficiency prediction is insufficient in accuracy and poor in real-time performance, and energy-carbon cooperative management and control are not considered are solved.

The invention discloses a topology state monitoring-based high-voltage distribution network self-healing model construction method and system, equipment and a medium. The method comprises the steps of obtaining main network topology structure data, equipment operation state data and typical wiring mode data; based on topological structure data and typical wiring mode data, a main network self-healing model including bus self-healing, buscouple self-healing and total station self-healing types is constructed by adopting a graph theory adjacency matrix, and the charging and discharging states of the model are periodically polled and judged according to equipment operation state data. And the linkage analysis of the topology power-off state and the bus voltage abnormity is fused before and after the self-healing process is started, and the self-healing action logic is locked through multiple conditions, so that the problem that the traditional technology is lack of standardized modeling, dynamic state evaluation and linkage analysis is solved, the strategy reusability and the fault power recovery efficiency are improved, the misoperation risk is reduced, and the reliability of the system is improved. And the safety and reliability of the operation of the main network are ensured.

The invention provides a charging pile power adaptive regulation and control method and device, and relates to the technical field of power adaptive regulation and control. The method comprises the following steps: firstly, setting regulation and control points according to a preset time interval, collecting a station total incoming line available power upper limit, total active power and charging state data of each charging pile, and calculating a demand priority score of each charging pile based on a current battery charge state and a historical power distribution condition; generating a plurality of candidate strategies according to positive and negative total power margin, and respectively implementing differential power increase and decrease for high and low demand priority piles; according to the charging rate curve, simulating the total charging completion time of all the charging piles under each strategy, selecting the strategy with the shortest total time as a comprehensive optimal strategy, and determining the target distribution power of the next regulation and control point of each pile; and finally, smoothly issuing a power instruction to a power control unit of each pile through slope rate limitation. On the premise of guaranteeing the safety of the power grid, the overall charging efficiency and the user satisfaction degree of the station can be remarkably improved.

The invention relates to the technical field of wind power generation control, in particular to a variable pitch control method and system for a wind generating set, and the method comprises the steps: firstly obtaining a real-time operation data set which comprises a set state data unit and an environment parameter data unit and is provided with a timestamp mark, and carrying out the feature fusion processing of the real-time operation data set; a combined feature set reflecting the incidence relation between the blade stress state and the wind regime change is obtained, then a pre-trained pitch angle prediction model is called to predict the pitch angle adjustment amount of the combined feature set, and target pitch angle control parameters meeting the power generation efficiency and structural load balance are determined according to the prediction result; and finally, generating a variable pitch execution instruction containing timestamp alignment based on the target pitch angle control parameter, and sending the variable pitch execution instruction to a variable pitch control system, so that the pitch angle adjustment amount can be accurately predicted, the balance between the power generation efficiency and the structural load is realized, and the operation performance and reliability of the wind generating set are improved.

The application discloses a generator lithium battery cooperative control method and system, and belongs to the technical field of electric control of hybrid electric vehicles. The method collects lithium battery current, SOC state and temperature data in real time, establishes a dynamic Imax threshold after standardization processing, constructs a multi-physical field coupling model, accurately calculates the high-power duration of the generator and outputs optimal intermittent control parameters, realizes intelligent cutting and recovery of the charging loop through MOSFET switches, collects operation data to feedback and optimize model parameters, and forms a closed-loop learning system. The application solves the technical problems of response lag and split electric heat management of the traditional method, realizes double-target optimization of the extension of the service life of the generator and the improvement of the charging efficiency of the lithium battery, reduces the daily average high-load time of the generator, and improves the cycle life of the lithium battery.

Embodiments of the present application provide a power supply device for a server. The device comprises a power supply source and an energy storage device. The power supply source is configured with a power supply port; the energy storage device is configured with a charging port and a discharging port; the power supply port is connected to the charging port; the power supply port is further configured to be connected to an electric energy input port of a server motherboard to which power is to be supplied; and the discharging port is configured to be connected to parts to which power is to be supplied, said parts being deployed on the server motherboard. The power supply source is configured to supply power to said parts by means of the electric energy input port and to charge the energy storage device. The energy storage device is configured to, when a target part in a target operation state exists in said parts, continuously supply power to the target part on the basis of an electricity supply deficit of the target part in the target operation state. The present application solves the problem in the related art of low power supply efficiency for parts, in a server, to which power is to be supplied, thereby achieving the effect of improving the power supply efficiency for said parts in the server.

The invention provides a glitch power consumption optimization system and method based on logic efficacy, and relates to the technical field of electrical digital data processing.The glitch power consumption optimization system based on the logic efficacy comprises a path efficacy calculation module used for determining the path logic efficacy, the path branch efficacy and the path electrical efficacy of each path, determining the path efficacy of each path; the burr source identification module is used for determining an actual delay difference value between the paths converged to the same path convergence point, and judging the path convergence point as a burr source when the actual delay difference value meets a preset burr source judgment condition; and the burr optimization module is used for generating burr optimization suggestions of the burr source. According to the scheme, potential glitch risks of different circuit topological structures can be rapidly evaluated without depending on a series of processes such as integration, physical implementation, parasitic parameter extraction, post-simulation and glitch power consumption evaluation, traditional experience-driven optimization is converted into data-driven scientific optimization, and the glitch power consumption optimization effect is improved.

The embodiment of the invention provides a PLC (Programmable Logic Controller)-based high-power wind turbine generator control method and a PLC-based high-power wind turbine generator control system, which are used for carrying out short-time prediction on future wind speed on the basis of a time sequence model and generating a feed-forward compensation pitch angle in combination with system delay so as to actively cope with upcoming wind speed disturbance, so that the reactive defects of traditional control are fundamentally overcome. According to the prospective control mode, the response speed and the control precision of the variable pitch system can be remarkably improved, the power and rotating speed overshoot caused by the large inertia characteristic is effectively restrained, the output power is smooth, and therefore the overall operation life of a unit is prolonged, and the power generation efficiency and the power grid friendliness are improved.

The invention relates to the technical field of wind power generation, and provides a wind turbine generator aerodynamic performance real-time optimization method and device, a medium and equipment, and the method comprises the steps: collecting the sensing data of a target wind turbine generator group based on a sensor preset in the target wind turbine generator group; taking the maximum total power generation efficiency of the target wind turbine generator group and the minimum sum of the accumulated damage degrees of all the target wind turbine generators as optimization objectives to construct a dual-objective fitness function; solving the optimal pitch angle and yaw angle instruction set of the unit group based on the dual-target fitness function, the environmental data, the operating parameters of each target wind turbine generator and a preset genetic algorithm; and the optimal pitch angle and yaw angle instruction corresponding to each target wind turbine generator is issued to a terminal layer of the corresponding target wind turbine generator to be executed, so that the cooperative action of each target wind turbine generator in the target wind turbine generator group is realized. The overall power generation efficiency of the wind turbine generator group can be effectively improved, meanwhile, the operation damage degree of the wind turbine generators is reduced, and the service life of the wind turbine generators is prolonged.

The application provides a fast charging circuit of a power energy storage device and a charging method and a charger thereof, which comprises a forward conversion module, the forward conversion module outputs a first stable current or a second stable current to the energy storage device through a transformer, wherein the first stable current is smaller than the second stable current; a pulse rising energy storage capacitor, which is electrically connected to the transformer, the pulse rising energy storage capacitor is electrically connected to the energy storage device through a control switch, when the output of the charging circuit is switched from the first stable current to the second stable current, the control switch is closed, and the pulse rising energy storage capacitor charges the energy storage device; and a pulse falling energy storage capacitor, which is electrically connected to the output end of the forward conversion module and the pulse rising energy storage capacitor when the charging circuit is switched from outputting the second stable current to the first stable current. The application can generate continuous current and high-quality pulse current, and has high charging efficiency.

The invention discloses a charging efficiency adjusting method, a controller and an energy storage device, and the method comprises the steps: determining a charging limiting current according to a charging voltage, a charging current and a charging cut-off voltage when the energy storage device is in a charging state; and determining a charging demand current based on the charging preset current, the charging limit current and the electric quantity value, wherein the charging demand current is used for indicating the charging current output to the energy storage device by the charger. The invention aims to solve the problem of how to further shorten the charging time.

The invention relates to an SOFC-GT-ORC hybrid power generation system with variable dynamic performance for a mobile power generation scene. The SOFC-GT-ORC hybrid power generation system comprises a multi-component gas supply part, a solid oxide fuel cell part, a gas turbine power generation part and an organic Rankine cycle heat recovery part, according to the invention, methane is used as fuel gas to realize variable dynamic performance operation under different power consumption scenes, and the dynamic performance of the system can be quickly regulated and improved through double paths of the system under the power consumption scenes with frequent variable working conditions and high dynamic performance requirements; and the dynamic performance is reduced and the power generation efficiency of the system is improved through system double-path rapid regulation and control in a scene with stable power utilization requirements, so that the matching performance of the power generation system in a user side scene is improved. According to the system, the power generation efficiency of the system is improved by coupling the solid oxide fuel cell and the turbine, and meanwhile, the thermal efficiency of the system is improved by coupling the organic Rankine cycle, so that the system has relatively high thermoelectric efficiency, and the economical efficiency and the environmental protection property of the power generation system are improved.

To provide a solar thermal power generation system with improved power generation efficiency. [Solution] The solar thermal power generation device comprises a pipeline, a concentrating mirror section that heats and expands the air in the pipeline, a first chamber and a second chamber connected to the pipeline through which the air is supplied, a switching valve capable of switching between state A1, in which the pipeline and the first chamber are connected, and state A2, in which the pipeline and the second chamber are connected, an output shaft, a generator that generates electricity by the rotation of the output shaft, a first turbine section and a second turbine section that, when the rotational speed of the air rotating in the rotational direction is greater than the rotational speed of the output shaft, are rotated together by a ratchet mechanism and the rotational force is transmitted to the output shaft, and when the rotational speed is less than the rotational speed of the output shaft, the ratchet mechanism causes the output shaft to spin freely, and a control section that alternately switches the switching valve.

According to the power generation quality control method and system of the tidal current and wind power composite power generation system, the novel power generation quality control method is designed on the basis of a traditional composite power generation system, numerical simulation is conducted by monitoring environmental physical parameters in real time, and the output power of a wind turbine and the output power of a water turbine are obtained; and calculating a power supply and demand error and a corresponding error change rate, and realizing power proportion adjustment of different types of power generation units by utilizing PID control and a preset priority strategy. Compared with a traditional hybrid power generation system which independently controls different power generation units, the hybrid power generation system has the advantages that the hardware cost and the communication delay can be reduced by adopting a unified control mode, and the power output stability is enhanced while the power generation efficiency of the hybrid power generation system is improved.

This invention relates to the field of medium- and low-voltage distribution network collaborative self-healing technology, and provides a medium- and low-voltage collaborative self-healing method and system for rapid power restoration for all users in the region. The method includes: receiving medium-voltage permanent fault information, initiating medium-voltage self-healing, locating the fault and remotely isolating the faulty area, and remotely restoring power to the non-faulty medium-voltage area; collecting real-time conductor temperature on the low-voltage side of the distribution transformer, duration of voltage dips on the low-voltage busbar, power consumption priority of users connected to the distribution transformer, topological distance between the distribution transformer to be transferred to low-voltage distribution and the target distribution transformer, and actual load current of the distribution transformer to be transferred to low-voltage distribution, to achieve dynamic load verification of the low-voltage transfer of the distribution transformer; based on the medium-voltage fault information and the above-mentioned collected parameters, this invention achieves rapid self-healing power restoration for all users in the region under fault conditions through the linkage and collaboration of medium-voltage self-healing and low-voltage self-healing. Simultaneously, by realizing dynamic load verification of the low-voltage transfer of the distribution transformer, it can effectively reduce low-voltage transfer overload tripping and improve the power restoration efficiency and power supply stability for all users in the region.

The invention relates to the technical field of humidifiers, in particular to a wireless humidifier which comprises a shell, a water tank, a power supply column and an atomizer assembly. The water tank is arranged in the shell; the power supply column body is fixedly arranged in the water tank and extends in the height direction of the water tank; the atomizer assembly is in sliding fit with the power supply column body so that the atomizer assembly can move in the axial direction of the power supply column body, and radial movement of the atomizer assembly relative to the power supply column body is restrained. Only the power supply column and the atomizer assembly are arranged in the water tank of the wireless humidifier, the internal structure of the water tank is simplified, and therefore a user can conveniently and thoroughly clean the water tank; besides, the moving path of the atomizer assembly is guided through the power supply column body, it is ensured that the atomizer assembly and the power supply column body are always in a stable alignment state, and therefore the stability of wireless transmission is improved, and power supply interruption or power supply efficiency reduction caused by the fact that the atomizer assembly shakes or deviates along with the liquid level is avoided.

The invention belongs to the technical field of line fault judgment, and particularly relates to a high-voltage line short-circuit fault judgment test method. The method comprises the following steps: checking and determining tripping of a certain high-voltage feed-out line; line-to-overhaul full discharge is realized; switching the resistance gear of the universal meter to a * 1 gear, and respectively measuring the inter-phase resistance of the three phases of the fault line; during measurement, if the pointer of the universal meter instantly deviates to zero, it shows that a short-circuit fault exists in the line; if the pointer of the universal meter begins to swing rightwards, gradually slows down after reaching the middle and finally deviates to zero, and the whole test process is short, the line has no short-circuit fault; according to the swing condition of the pointer of the universal meter, whether the current line has a short-circuit fault can be judged. According to the invention, the problems of low power transmission efficiency caused by too long fault processing time due to the fact that line lightning trip-out faults need to be checked by an external line electrician and fault points need to be found by disconnecting the user side incoming line disconnecting switches one by one during troubleshooting are solved.

Apparatuses, systems and methods are described for optimizing power production from power generating devices by dynamically grouping the power generators. The power generating devices may be dynamically grouped into power sources according to a Maximum Power Point of the power generators, and the power output of the grouped generators may be controlled by alternatively connecting the output of the power sources. The output power may also be optimized by dynamically grouping the power generators, so that a maximum power may be generated.

The invention discloses a power control method, equipment and a program product, and belongs to the technical field of computers. The method comprises the steps that under the condition that power supply information of a micro-grid does not meet preset conditions, first target power is determined according to the power supply information, the first target power is target power needing to be output by an energy storage module, and the target power is reactive power or active power; under the condition that the first target power is smaller than or equal to second target power, the target power output by the energy storage module is adjusted according to the first target power, and the second target power is the maximum target power capable of being output by the energy storage module. When the load fluctuates and the energy storage module can independently absorb the fluctuation brought by the load, only the output power of the energy storage module is adjusted, so that the power generation efficiency and the power supply quality of the diesel power generation module can be ensured, and the power supply efficiency is improved. Moreover, the energy storage module can quickly respond to the control of the micro-grid and output stable power, and the energy scheduling speed of the micro-grid can be improved.

The application relates to a performance analysis method of an advanced adiabatic compressed air energy storage system, which comprises the following steps: when the application scene is determined, the inlet pressure and temperature of a first compressor, the outlet pressure of a last compressor, the inlet pressure of a first expander and the outlet pressure of a last expander are known; the outlet temperature of the first compressor, the outlet temperature of the first expander, the pinch point temperature difference of a heat exchanger, the isentropic efficiency of each compressor and expander, the compressed mass flow, the compression time length, the expanded mass flow, the expansion time length are unknown; the outlet temperature of the last compressor, the inlet temperature of the first expander, the outlet temperature of the last expander and the polytropic efficiency of each compressor and expander are dependent variables of the known and unknown parameters; according to the relationship among the parameters, the compression power, the expansion power and the electric-to-electric efficiency are theoretically calculated, and the optimal scheme of the system performance of the advanced adiabatic compressed air energy storage is obtained in the shortest time cost and the least calculation cost.

The invention relates to the technical field of intelligent power driving in analog integrated circuits, in particular to a novel intelligent power driving chip high-side continuous power supply circuit which comprises a novel charge pump bootstrap power supply circuit and a charge pump capacitor Ccharge. According to the novel charge pump bootstrap power supply circuit, an oscillator is integrated at the control end of a voltage withstanding switch S2A, a clock signal CLK is generated through the oscillator to control on and off of the voltage withstanding switch S2A, meanwhile, the dV / dt state of a floating ground end HS of a charge pump circuit is detected, a dV / dt detection adaptive circuit is matched to generate a control signal of a voltage withstanding switch S1A, and the voltage withstanding switch S2A is controlled to be switched on and off. A high-side continuous power supply circuit is formed by combining charge pump diodes D1 and D2 and a charge pump capacitor Ccharge and continuously supplies power to a bootstrap capacitor Cboot; according to the novel charge pump bootstrap power supply circuit, a high-side integrated level shift circuit in the novel charge pump bootstrap power supply circuit is effectively prevented from working in a high-frequency state, and the dynamic power consumption of the circuit is remarkably reduced while the relatively high power supply efficiency is maintained.

The application discloses a kind of quick repair methods of ternary lithium material, it is related to battery material repair field.The method includes that ternary pole piece is broken, screening is mixed with white carbon black, carries out primary roasting in inert gas atmosphere, removes white carbon black by separation, removes suspended substance by washing with water, after material drying, ball milling, carries out secondary roasting in inert gas atmosphere, obtains repaired ternary lithium pole piece powder.The application carries out repair processing to the pole piece of electric performance drop, adds white carbon black in the process of roasting and removing organic matter, utilizes white carbon black and the reaction of HF generated by pyrolysis, avoids the reaction of HF and ternary lithium crystal, guarantees the integrity of ternary crystal structure, significantly improves the electric performance repair effect of pole piece powder, after being applied to the preparation battery, capacity, charging efficiency and electric cycle stability are significantly improved, avoid the ecological pollution caused by irregular discharge of waste ternary lithium material to environment, with economy and sustainable development.