680 results about "Constant power" patented technology

The invention relates to the technical field of ship propulsion power generation system control, in particular to a constant-power rotating speed control method and system for a ship shaft generator, and the method comprises the following steps: obtaining operation state parameters and ship environment parameters of a ship propulsion power generation system; based on the operation state parameters and the ship environment parameters, the influence of the adjusting action of the shaft generator on the rotating speed of a main propulsion diesel engine and the influence of the adjusting action of a main propulsion diesel engine speed adjusting device on the output power of the shaft generator are pre-judged, and an interactive pre-judgment result is obtained; according to the interactive pre-judgment result, jointly deciding and generating a first adjusting instruction for adjusting an axle generator and a second adjusting instruction for adjusting a main propulsion diesel engine speed adjusting device; by introducing an interactive pre-judgment and joint decision-making mechanism, the negative interaction between the shaft generator and the main propulsion diesel engine speed regulation device can be effectively identified and eliminated, and the operation stability and safety of the ship under the severe sea condition are improved.

The invention discloses an ignition control method of a remote plasma source in the technical field of remote plasma sources, which comprises the following steps: S1, setting a gas current excitation threshold value, and introducing excitation gas; s2, judging whether an ignition signal is received or not, and if yes, closing a relay and entering a constant current stage; s3, whether system ignition is normal or not is judged, and if not, the ignition voltage is adjusted through a self-learning type ignition threshold value calibration method; s4, the output power is improved, and the ignition voltage is adjusted through an ignition threshold calibration method during the period; s5, entering a constant power stage when the output power reaches the full-load power; according to the self-learning type ignition threshold value calibration method, gas flow, gas pressure and cavity temperature are collected in real time, a current load impedance value is predicted through an LSF-BP model, and an ignition voltage threshold value is updated according to the current load impedance value. According to the method, the ignition threshold is dynamically adjusted according to the operation condition, the ignition stability can be effectively improved, and equipment damage and maintenance cost are reduced.

The invention discloses a short-circuit current limiting and short-circuit recovery transient voltage control device and method for an aviation three-stage power generation system, and the device comprises a three-stage power generator, a power generator controller, a current sensor, a voltage and current collection module, and an asymmetric half-bridge excitation control circuit. Collecting the output current iL and voltage UL of the generator through a digital processor of the generator controller; when short circuit occurs, the given voltage USet of the voltage regulating loop is linearly reduced in a piecewise mode according to the relation between the iL and a preset threshold value, so that the generator works in a constant power interval; and when the short circuit is recovered, closing the upper / lower power tubes of the asymmetric half-bridge excitation control circuit according to the relationship between UL and a preset threshold value in a grading manner, and triggering a negative-pressure follow-current mode of a main excitation winding of the generator controller to quickly extinguish the field. The method can adapt to different generators without adjusting hardware circuit parameters, has no motor ablation risk during short circuit, has transient voltage less than 350V after short circuit recovery, has no power supply interruption in the whole process, has response delay less than 1ms, and greatly improves the safety and robustness of an aviation power supply and distribution system.

The invention discloses a magnetic adjusting assembly, a motor, an electric drive system and a vehicle, and the magnetic adjusting assembly comprises a magnetic conductive part which is suitable for being movably disposed on one side of a rotor in the radial direction, so as to adjust the magnetic flux passing through the rotor. According to the magnetic adjusting assembly, the magnetic flux passing through the rotor is adjusted to change the magnetic flux of the magnetic flux short-circuit loop formed by the magnetic conductive piece and the rotor, so that the adjustment of the magnetic flux of the main magnetic field is realized, the adjustment is convenient, and the motor applying the magnetic adjusting assembly has the advantages of a constant torque area and a constant power area; and a constant-power operation region and a high-efficiency region are effectively widened while high torque density and power density are ensured.

The invention discloses a converter grid following-grid construction control mode smooth switching method suitable for wide-range source-grid state change. The method comprises the following steps: constructing a phase-locked loop control loop, a power outer loop control loop and a current inner loop control loop of a grid following type converter based on constant power control; constructing a voltage control loop, a phase control loop and a voltage and current double-closed-loop control loop of the network construction type converter based on the virtual synchronous generator VSG; calculating real-time output active power P and reactive power Q of the converter; constructing a voltage phase synchronization loop switching control loop and a current instruction tracking loop, and realizing smooth switching of dq-axis current instruction values output by a power outer loop of a following network type and a voltage outer loop of a construction network type; and the output dq-axis current instruction value is transmitted to a current inner loop to generate a final voltage signal, and a PWM wave is output to the converter through a modulation link. According to the method, a voltage phase synchronous switching compensation mechanism is adopted, a voltage amplitude and a phase signal are synchronously corrected in the mode switching process, and smooth change of an inner ring current reference signal is achieved.

The invention provides a constant-power driving method of a light source, a light source driver and an air conditioning system, and the constant-power driving method comprises the steps: determining an equivalent voltage corresponding to the power of the current light source based on the working current and working voltage of the current light source obtained in real time; performing differential amplification processing on the equivalent voltage and the expected voltage to generate a constant power modulation instruction of the light source; the expected voltage is a constant voltage simulated according to the rated power of the light source; driving power of the light source is generated based on a constant power modulation instruction of the light source and a feedback adjustment instruction, the driving power is amplified by using a preset power amplification coefficient, the amplified driving power is used for driving the light source to emit light, and the feedback adjustment instruction is generated based on sampling feedback of the driving power of the amplified light source. The constant-power driving of the light source is adopted, so that the service life, the precision and the response speed of the light source are ensured.

A DC electronic load circuit relates to the technical field of electronic load control. The utility model provides a direct current electronic load circuit which integrates a dissipation MOS tube array, an analog PID loop, a digital integrated control module, a bus electrical parameter sampling and processing module and a WiFi communication module, and realizes a plurality of working modes such as constant current, constant voltage, constant resistance and constant power by accurately controlling the conduction degree of the MOS tube array. The system has the advantages of real-time monitoring, remote control, overvoltage and overcurrent protection, low power consumption design and the like, and an electronic load solution which is high in precision, high in stability and flexible to operate is provided, so that diversified test requirements are met, and the power supply test efficiency and safety are improved.

The invention relates to the technical field of grinding control, in particular to a constant-power grinding control method, system and equipment of a numerical control grinding machine. According to the method, in a preset historical time period of a to-be-regulated moment, a time sequence curve of the deviation of the grinding power of the numerical control grinding machine relative to the preset grinding power is obtained and subjected to time sequence decomposition, and then proportional gain in PID control parameters is obtained according to the change trend of a trend component and the power deviation at the to-be-regulated moment in the trend component; obtaining an integral gain in the PID control parameters according to the periodic fluctuation characteristics of the seasonal components; according to the change trend of the time sequence curve and the fluctuation characteristics of the residual component, and in combination with the proportional gain and the integral gain, obtaining the differential gain in the PID control parameters; and finally carrying out constant-power grinding control on the numerical control grinding machine. The PID control parameters are adaptively adjusted based on the time sequence decomposition result of the power deviation, and the constant power control effect on the numerical control grinding machine is improved.

The invention discloses an MPC-SP-based all-vanadium redox flow battery constant-power charging and discharging control method, which is applied to an energy storage control system composed of an MPC-SP controller, a PCS and an all-vanadium redox flow battery, and is characterized in that the controller dynamically and accurately adjusts the power output to the battery based on preset SOC interval division, and the power output to the battery is increased along with the increase of the actual SOC value of the battery. The power is increased in stages. Meanwhile, the controller pays attention to the voltage Ud of the battery end all the time, and when the Ud reaches a voltage limiting value, the constant voltage mode is switched, so that the battery is effectively prevented from being damaged due to overhigh voltage. The state-based dynamic power management is much safer, more flexible and more intelligent than traditional fixed constant power control. According to the invention, the change rate of current in the charge-discharge process of the all-vanadium redox flow battery can be reduced, the service life of the battery is prolonged, and the safety is guaranteed.

The invention discloses a virtual impedance compensation-based active-disturbance-rejection control method for a dual-active-bridge converter, and the method comprises the following steps: firstly designing a virtual impedance compensation strategy, connecting an equivalent virtual conductor in parallel with an output capacitor, converting the equivalent virtual conductor into a duty ratio injection amount, and achieving the active counteracting of the negative impedance of a constant-power load and the reconstruction of the damping of a port; an unstable pole of the right half plane is made to move back to the left half plane, and extra power loss is not introduced; an active disturbance rejection control strategy based on virtual impedance compensation is designed, residual uncertainty after virtual impedance compensation is uniformly regarded as total disturbance online observation and feedforward offset, and therefore rapid and smooth voltage tracking is kept under parameter perturbation and external disturbance. Under the working conditions of voltage reference step and load abrupt change, the improved active disturbance rejection control strategy realizes the effects of no overshoot, shortest setting time and minimum oscillation by enhancing disturbance observation and virtual impedance compensation, and has better damping and disturbance rejection performance.

The invention relates to the technical field of micro-grids, and discloses a control method of a distributed power supply in a plant micro-grid, and the method comprises the steps: S1, constructing a multi-source collaborative micro-grid system; s2, executing real-time power dynamic allocation; s3, working condition power balance control; s4, active regulation of bidirectional power flow and the like. Based on a real-time AGC instruction and plant load data, a hierarchical coordination mechanism is adopted, charging and discharging power is dynamically adjusted by means of stored energy to track the AGC instruction, and constant power output of wind power is maintained in combination with a wind power prediction model; when a thermal power generating unit is subjected to deep peak regulation, shutdown or fault, the system absorbs excess wind power through energy storage charging, synergistically improves the hydrogen production load power, guarantees dynamic matching of the load and power generation, and actively adjusts energy storage charging and discharging and hydrogen production loads by monitoring the power flow directions of a thermal power generating unit section and a desulfurization section in real time according to voltage fluctuation caused by bidirectional power flow. And the voltage deviation is dynamically compensated, and the system voltage stability is greatly improved.

The invention provides a load tracking control method for an energy storage system in an oil field scene, which realizes cooperative control of constant-power operation of a generator and rapid compensation of energy storage. The system comprises the following mechanisms: a diesel generator; the energy storage system comprises an energy storage converter PCS and an energy storage battery pack; the AI sampling module is used for respectively sampling implementation voltage and current data of the diesel generator and the load through a voltage transformer PT and a current transformer CT; the EMS system side power calculation module comprises an energy management system power calculation module and a power conversion system; and an oil field load; an output end of a diesel generator and an output end of an energy storage converter PCS are converged to a load output line and then are connected to an oil field load, an AI sampling module also samples voltage and current data of the load output line, the diesel generator and an energy storage system supply power to the oil field load at the same time, and an engine operates in a high-efficiency interval. And the energy storage system bears instantaneous power fluctuation.

The invention belongs to the technical field of remote plasma sources, and provides a remote plasma source load impedance disturbance protection control method and device. The method comprises the following steps: collecting gas flow, gas pressure and reaction chamber temperature of a reaction chamber; obtaining a load impedance prediction value according to the load impedance prediction model; and controlling the system to work in a constant power stage or a constant current stage according to whether the load impedance predicted value F is in a fluctuation stable interval. According to the method, the load impedance value F can be predicted by using the load impedance prediction model under different gas flows, pressures and cavity temperatures, whether the working state is stable or not is determined according to the load impedance value, and the system is controlled to work in a constant power stage or a constant current stage. Gas load fluctuation and plasma dynamic real-time cooperative regulation and control are achieved, mixing disturbance during gas switching is effectively restrained, and the problem of plasma instability is solved; the situation that a power device is damaged due to overlarge current caused by gas load fluctuation is avoided, and the service life of the remote plasma source is prolonged.

The invention discloses a grid-connected inverter power and current coordination control method under a harmonic power grid and a related device, and relates to the technical field of renewable energy power generation, and the method comprises the steps: obtaining a two-phase power grid AC voltage based on a three-phase power grid AC voltage; calculating a reference current under a direct power control strategy based on the active power reference value, the reactive power reference value and the two-phase power grid AC voltage; harmonic waves in the reference current under the direct power control strategy are filtered out, and a fundamental component and a harmonic component are obtained; based on a preset adjustment coefficient, the fundamental component and the harmonic component, obtaining a reference current with an adjustable harmonic content; performing zero static error control on the reference current with the adjustable harmonic content to obtain a modulation voltage; and performing sine pulse width modulation on the modulation voltage to obtain a grid-connected current. According to the invention, coordinated control of power constancy and current balance of the grid-connected inverter can be realized.

The invention relates to the field of UHPC stirring machine control, in particular to a constant-power automatic speed regulation control system and method for UHPC stirring, the operation process of a UHPC stirring machine is divided into a plurality of process stages, each stage corresponds to different frequencies, rotating speeds and operation time, accurate control over the rotating speeds is achieved, and on the premise that the power is constant, the speed regulation speed of the UHPC stirring machine can be accurately controlled. The rotating speed is flexibly adjusted to meet the requirements of different stirring stages of UHPC, the mixing quality is guaranteed, efficient utilization of energy is achieved, a constant-speed stirring machine is changed into a variable-speed intelligent stirring machine through multi-section speed control of the frequency converter, energy is saved by 30% or above, and the quality and productivity of UHPC products are remarkably improved through process-level rotating speed matching.

The invention discloses a high-power stepless magnetic damping device and a power control method thereof.The high-power stepless magnetic damping device comprises a magnetic resistance magnetic core mechanism, the magnetic resistance magnetic core mechanism achieves control over high-power stepless magnetic damping according to the electromagnetic damping principle, regulation and control response is fast, continuity of constant-power output is guaranteed, and the high-power stepless magnetic damping device is suitable for large-power stepless magnetic damping. And a circle of Halbach magnet array formed by reinforcing magnets is arranged, so that the field intensity in the unit direction is enhanced, and the generation of high-power magnetic damping is realized. According to the power control method, a static Kalman data fusion updating model is introduced for power updating, speed and accuracy are balanced, a PWM signal is output through a PID controller to adjust the input current of a control coil, and therefore the size of a magnetic field is controlled, control over the size of magnetic damping is achieved, stepless regulation and control are achieved, and the control precision is improved. Therefore, stable output of constant power is ensured.

The present application relates to an automatic temperature-controlled air disturbance constant-power charging energy storage system for aqueous liquid-rich batteries, the system comprising: an air disturbance unit for delivering gas to the interior of the battery, the air disturbance unit comprising an air duct, the air duct being vertically inserted into the battery and having a plurality of air holes on its surface for injecting gas into the electrolyte of the battery in the form of bubbles, a temperature regulating unit for regulating the temperature of the gas input to the battery by the air disturbance unit, a collection module for collecting the electrical parameters and temperature parameters of the battery, a control unit for controlling the start and stop of the air disturbance unit, as well as the gas pressure and gas flow rate input to the battery according to the electrical parameters, and controlling the temperature regulating unit according to the temperature parameters. Through the present application, the problems of low charging efficiency and short service life of aqueous liquid-rich batteries are solved. By controlling the temperature of the input gas, the battery temperature is kept within an appropriate range, thereby improving the charging efficiency of the battery, and the air disturbance unit is used to avoid electrolyte stratification, thereby extending the service life of the battery.

The invention relates to a degaussing power supply control method, system and equipment based on a flywheel energy storage device, and belongs to the technical field of pulse power supply design. The system comprises a power grid side rectifier, a four-quadrant DC / DC converter, a flywheel side converter, a bidirectional DC / DC converter and a centralized console. The power grid side rectifier is controlled according to a constant power mode; the four-quadrant DC / DC converter is used for controlling the waveform of the current of the degaussing coil and limiting the power of the degaussing coil; the flywheel side converter charges and discharges the flywheel motor according to the power of the degaussing coil; the bidirectional DC / DC converter is used for maintaining the voltage of the DC bus to be constant; the centralized console is responsible for monitoring the states of different converters and issuing a control instruction. The power and voltage output of each converter can be coordinated, the pulse current output requirement of the degaussing coil is met, the safe and stable operation of the power supply system is ensured, and the popularization and application are easy.

The invention relates to the technical field of batteries, and discloses an energy state estimation model construction method and device and an energy state estimation method and device for an energy storage battery, and the model construction method comprises the steps: carrying out the constant power discharge of a fresh-state battery at different temperatures for multiple times at a preset power, and obtaining the DC internal resistance and the energy state of the discharged fresh-state battery; constructing a first function according to the direct-current internal resistance, the energy state and the corresponding temperature of the fresh-state battery after each discharge; performing a cyclic aging test on the fresh-state battery at the standard temperature to obtain direct-current internal resistances corresponding to different service times of the fresh-state battery at the standard temperature; constructing a second function according to the direct-current internal resistance corresponding to different use time at the standard temperature; combining the first function and the second function to obtain a battery internal resistance model; and building an energy state estimation model based on the battery internal resistance model. According to the model constructed by the invention, coupling of various factors is realized, so that the estimation precision of the model is improved.

The invention relates to a doubly-fed variable-speed pumped storage unit comprehensive inertia supporting method, device and equipment based on an excitation capacitor. The method comprises the following steps: acquiring a frequency deviation value and a frequency deviation change rate of a grid-connected point after a load connected with a power system is suddenly changed; determining whether to start a comprehensive inertia control strategy according to the frequency deviation value and the frequency deviation change rate; if the comprehensive inertia control strategy is started, dynamically adjusting a DC bus voltage reference value according to the frequency deviation value to determine a d-axis modulation voltage component; acquiring additional electromagnetic increment power; controlling a grid-side converter in the power system to operate according to the d-axis modulation voltage component, controlling a machine-side converter in the power system to operate according to the additional electromagnetic increment power, and providing inertial current impact support for the power system; and if the comprehensive inertia control strategy is not started, the frequency of the power system is kept stable and synchronous, and the doubly-fed variable-speed pumped storage unit of the power system is controlled to work in a constant power state.

The invention relates to a permanent magnet synchronous motor full-working-condition design method considering driver constraints, and belongs to the technical field of permanent magnet synchronous motor design, and the method comprises the following steps: building a mathematical model of a permanent magnet synchronous motor; calculating the electromagnetic relation of the motor in the constant torque maximum torque / current control mode; calculating the electromagnetic relation of the motor under the constant-power weak magnetic control; and according to the model and the electromagnetic relationship, carrying out full-condition design on the motor. Based on the mathematical model and the control mode of the permanent magnet synchronous motor, by analyzing the influence of the direct current bus voltage and the inverter circuit output current on the maximum rotating speed, the maximum torque and the current density of the motor, the constraint condition of the driver performance on the motor design can be determined. According to the method, whether the electromagnetic performance of the design scheme reaches the standard or not can be calculated and analyzed more quickly, and the design efficiency is improved.

The invention relates to the technical field of lasers, and provides a double-gain-medium Q-switched laser and a constant-power pulse width adjusting method.The laser comprises a first pumping source, a second pumping source, an optical fiber beam combiner, a beam shaping system and a laser resonant cavity, the laser resonant cavity comprises a reflecting mirror, a first gain medium, a second gain medium, a polarization selector, a quarter-wave plate, a Q switch and an output mirror which are arranged in sequence; the first gain medium is used for absorbing first pumping light, the second gain medium is used for absorbing second pumping light, and the pumping power of the first pumping source and the pumping power of the second pumping source can be independently controlled. By changing the pumping power of the two pumping sources, real-time adjustment of the pulse width of the laser under the constant output power is achieved, the structure is compact, and control is easy and convenient.

The invention relates to the technical field of automatic control, and provides a control method and a control device of a hydraulic system and engineering machinery, vector control is used for directly regulating and controlling a hydraulic pump without depending on an intermediate link of the hydraulic system, the response is at a millisecond level, and when a load suddenly changes, the torque of a motor can be quickly limited, power overshoot is avoided, and the reliability of the hydraulic system is improved. The motor and battery system is protected, closed-loop control over the rotating speed is carried out, precision is higher, the torque upper limit is controlled by directly inputting the required power, the power is limited to be kept constant, the method is suitable for various complex scenes, high-speed and large-flow operation of the variable pump during light load can be achieved, the speed requirement is met, and the working efficiency is improved. And low-speed small-flow operation is achieved during heavy load, the safety requirement is met, a constant displacement pump and / or a variable displacement pump can be compatible at the same time, the problem that constant-power control cannot be achieved through the constant displacement pump is solved, and economy and environment friendliness are achieved.

The invention relates to the technical field of output control, in particular to a constant power control method, device and equipment based on COT and a storage medium, according to the method, fixed turn-on time is combined with dynamic turn-off time adjustment, the conciseness of COT control is reserved, accurate control over output power is achieved, and the control efficiency is improved. The influence of interference factors such as battery voltage drop and load abrupt change on constant power output can be effectively counteracted; specifically, a multi-path output synchronous opening design is adopted, and unified turn-off time adjustment logic is combined, namely, the turn-off time of a (k + 1) th period is calculated according to the total duration of a target period, so that an asynchronous turn-off condition caused by parameter differences of all channels is avoided, and the voltage rise deviation generated by load changes of a later turn-off channel is reduced; real-time output voltage and load resistance are respectively sampled in one period, battery voltage fluctuation and load change are monitored in real time, and error accumulation caused by the fact that a measured value in the current period is extended to the next period to be adjusted is avoided.

The invention discloses an electrosurgical radio frequency inverter based on model predictive control and a frequency conversion control method thereof, and the method comprises the steps: building a discrete output voltage prediction model based on a topological structure of the electrosurgical radio frequency inverter, and judging a switching frequency switching point and voltage peak output power through single sampling period iterative calculation. Constructing an output power prediction model; obtaining instantaneous prediction output power and theoretical reference output power obtained by real-time sampling and calculation when the output voltage is changed to a periodic peak value, and constructing a model prediction control evaluation function; according to the evaluation function, real-time voltage sampling and multi-frequency iteration prediction are combined with a set control target, the switching frequency of the radio frequency inverter is predicted and updated in real time, and constant-power frequency conversion control over the radio frequency inverter is achieved by continuously obtaining the control quantity at the next moment. The system can adapt to constant power output of a power supply under biological impedance change, can predict and control constant power output of an electrosurgical inverter in real time based on real-time updating of switching frequency, has good dynamic response performance, guarantees high efficiency and safety of clinical operations, and can be applied to various electrosurgical working platforms.

The invention provides a wireless charging system constant power output control method based on parameter sensitivity analysis, and the method comprises the steps: obtaining the transmitting-receiving end parameter information of a wireless charging system, and carrying out the exchange of the transmitting-receiving end parameter information; determining target output power according to the transmitting-receiving end parameter information; coupling coil mutual inductance is identified, a mutual inductance offset proportion and a switch tube conduction phase angle of the switch control capacitor are calculated, and a phase control capacitor switch duty ratio of the switch control capacitor is set; outputting the constant power of the wireless charging system according to the calculation and setting results; judging whether the output power meets the requirement or not; if yes, the setting and calculation processes are executed again at set time intervals, and whether the output power meets the requirement or not continues to be judged till current power output control is completed; and if the output power does not meet the requirement, directly resetting the setting and calculation process until the output power meets the requirement. According to the invention, constant power output of the system under a variable coupling coefficient condition is realized.

The invention discloses a wind power plant electromagnetic transient equivalence method and system oriented to power grid stability control strategy verification. The method comprises the steps that the rotating speed and wind speed correlation characteristics of electromagnetic transient models of all wind turbine generators in a wind power plant, the networking form of the wind turbine generators in the wind power plant and the operation working condition of all the wind turbine generators before a fault are obtained; all wind turbine generators in a wind power plant are divided into three initial groups including a starting area, an MPPT area and a constant-rotating-speed constant-power area; the grouping of the starting area and the constant rotating speed and constant power area is kept unchanged, the wind turbine generator in the MPPT area is further subdivided into three subgroups, and a wind power plant equivalent model containing five subgroups is formed; calculating the equivalent wind speed and multiplication value of the grouped wind turbine generator, and calculating the equivalent parameter of the current collection line of the wind power plant; performing multi-scene and multi-working-condition test verification on the established wind power plant equivalent model; according to the method, the transient response precision is improved while the simulation efficiency is ensured, and the contradiction problem of insufficient equivalent precision of a traditional single machine and large calculation amount of a detailed model is effectively solved.

The invention relates to the technical field of new energy and energy storage, and provides a renewable energy hydrogen production control system based on dynamic power matching and hydrogen storage collaboration, which comprises a power conversion system with a constant voltage mode and constant power mode millisecond switching capability; the modularized electrolytic cell array is formed by connecting a plurality of proton exchange membrane electrolytic cells in parallel; the hydrogen storage cooperation unit comprises a high-pressure hydrogen storage tank group, a solid oxide fuel cell and a hydrogen purification device; the intelligent control unit is used for executing a three-stage control strategy; the real-time control layer is used for executing proton exchange membrane electrolytic cell power instruction tracking and power grid frequency deviation compensation; the optimization scheduling layer adopts a reinforcement learning model prediction control algorithm to perform rolling optimization on the power distribution proportion of hydrogen production and power generation; and the planning layer is used for generating a proton exchange membrane electrolytic cell start-stop plan and a hydrogen storage scheduling plan in combination with meteorological prediction and electricity market transaction data. The problems that wind-solar power generation fluctuation is large, and a traditional hydrogen production system is slow in response and insufficient in economical efficiency can be solved.

The invention relates to the technical field of intelligent regulation and control of energy storage power stations, in particular to a peak regulation and frequency modulation cooperative control method for an energy storage power station. Comprising the steps of multi-source data acquisition and preprocessing, multi-model fusion prediction and error pre-judgment, rolling optimization and three-level linkage error correction, multi-time scale layered cooperative control based on SoC dynamic optimization, parameter adaptive comprehensive frequency modulation and hybrid energy storage execution. According to the method, a five-stage cascade fusion prediction framework is constructed, a dynamic weight fusion mechanism and a Cornish-Fisher series error pre-judgment model are combined, the problem of pain points of multi-scale prediction independent operation and error accumulation conduction in the prior art is solved, and through the rolling optimization characteristic of MPC model prediction control and a three-stage linkage error correction mechanism, the prediction accuracy is improved. And in cooperation with adaptive error compensation of DDPG reinforcement learning, the execution accuracy of a peak regulation and frequency modulation instruction is improved, the problem of load curve distortion caused by a traditional constant-power peak regulation mode is effectively avoided, and the stability of power grid operation is greatly improved.

To provide a charging control method.SOLUTION: A charging control method includes steps of: determining, as a first value, a charging completion voltage of constant current charging or constant power charging on the basis of a target charge energy of a battery; before the voltage value of the battery reaches the first value, determining whether or not a time point when the voltage value of the battery reaches the first value is predicted to be around a minimum point of the battery voltage increase rate during the constant current charging or constant power charging; and maintaining or changing the charging completion voltage in accordance with the determination result.SELECTED DRAWING: Figure 6