104 results about "Current constant" patented technology

The invention relates to the technical field of battery charging control, in particular to a charging control method and system for electronic equipment. The method comprises the following steps: counting each historical charging process in a historical database under a constant current charging process, dividing the historical charging process into historical time periods through time period division, and analyzing a comprehensive evaluation coefficient of each historical time period under a current constant current value; for the real-time charging process, the time period similar weight of each historical time period for the real-time time period can be determined in a time period matching mode, the optimal degree of the real-time time period for each constant current value can be determined by performing weighted fusion on the comprehensive evaluation coefficients, and then the charging current in the current real-time time period is determined. According to the invention, data comparison is carried out through big data analysis and a data collaborative filtering mode, dynamic adjustment of the constant current in the charging process of the electronic equipment is realized, and on the basis of ensuring the charging efficiency, the charging safety is improved, and the cycle life of the battery is prolonged.

The embodiment of the invention discloses a pump laser aging test system and electronic equipment. The aging test system comprises a light path monitoring system, a liquid cooling heat dissipation system, an electrical control system, a test system and a cabinet body, the optical path monitoring system is used for monitoring a monitoring index of the pump laser in real time to obtain monitoring index data; the test system is used for monitoring the monitoring index data and controlling the electrical control system according to a monitoring result; the electrical control system supplies power to the pump laser through the constant-current and constant-voltage direct-current power supply and performs on-off control on the constant-current and constant-voltage direct-current power supply according to a control instruction sent by the upper computer; and the liquid cooling heat dissipation system is used for performing temperature control on the aging process of the pump laser. The optical path monitoring system monitors multi-dimensional monitoring indexes such as the optical power and the spectrum of the pump laser in real time, it is guaranteed that the aging state of the pump laser is accurately evaluated, various parameters such as the temperature, the current and the voltage of a pump cover plate are covered, and different test requirements can be met.

The invention discloses a novel sodium ion battery and a formation method thereof, and belongs to the technical field of sodium ion batteries. A formation method of a novel sodium-ion battery comprises the following steps: S1, placing the sodium-ion battery in a constant-temperature environment, and charging the sodium-ion battery to 0.5 V through a first constant current to obtain a first formation stage battery; s2, charging the battery in the first formation stage to 3.8 V through a second constant current, and then converting into constant-voltage charging until the charging current is reduced to 0.02 C, so as to obtain a battery in a second formation stage; s3, standing the battery in the second formation stage to obtain a battery after standing; s4, the battery after standing is discharged to 1.0 V through a third current in a constant-current mode and then charged to 3.8 V through a fourth current in a constant-current mode, and a third formation stage battery is obtained; and S5, carrying out charge-discharge circulation on the battery in the third formation stage until the formation is finished. The formation method of the sodium-ion battery can improve the electrochemical performance of the sodium-ion battery.

The application discloses a constant-current constant-voltage converter integrated with a clamping and auxiliary power supply and a starting method thereof, and belongs to the field of power conversion, comprising a main converter and a regenerative clamping circuit; the main converter comprises an inverse resistance H-bridge, a main inductor, a main transformer, an inverse direction H-bridge and a main capacitor; the regenerative clamping circuit comprises a diode clamping circuit, a clamping capacitor and a feedback circuit. The inverse resistance H-bridge of the main converter has at least two bridge arms which are respectively formed by series connection of inverse direction switching devices and diodes, and the series connection points are respectively connected with the anode and cathode of two diodes of the diode clamping circuit; the other two bridge arm connection points of the inverse resistance H-bridge of the main converter are connected with the midpoint of the diode half-bridge of the clamping circuit, so that the passage of the clamping current and the charging current of the current source is provided. The circuit structure provided by the application can not only effectively inhibit the voltage peak of the inverse resistance bridge arm, but also provide an auxiliary power supply for the driving circuit of the inverse resistance bridge arm.

The invention belongs to the field of wireless electric energy transmission, and discloses a three-coil structure constant-current constant-voltage type wireless electric energy transmission system suitable for an office table, the system comprises an electric energy sending unit, a relay unit and a receiving unit, and the relay unit forms a series resonance network through a relay coil L2 and a relay series compensation capacitor C2; the receiving unit consists of a receiving coil L3, a receiving end compensation network, a rectifier D and a battery load R; the input end of the rectifier D is connected with the receiving coil L3, a constant current mode compensation capacitor C3CC and a constant voltage mode compensation capacitor C3CV which can be switched through a switch S are connected in series between the rectifier D and the receiving coil L3, and the output end of the rectifier is connected with a battery load R. The system can realize constant-current and constant-voltage output characteristics meeting battery charging requirements when the equivalent impedance of the battery is changed, and can ensure that the inverter realizes zero-phase-angle switching operation when the equivalent impedance of the battery is changed and the system is subjected to position offset.

The application provides a method for evaluating internal resistance performance of a lithium ion battery. The method comprises the following steps: S1: performing a charge-discharge cycle test on the lithium ion battery to be tested, the charging process is constant-current constant-voltage charging, and the discharging process is constant-current discharging; and S2: evaluating the internal resistance performance of the lithium ion battery to be tested by taking the growth rate of the constant-voltage charging capacity ratio in the xth cycle as B x (B x =(A x -A1) / A1*100%, A x =C 2x / C 1x *100%). The application takes the change rate of the constant-voltage charging capacity ratio in the charging process of the lithium ion battery as the internal resistance growth rate of the material, can continuously monitor the internal resistance change in the cycle process of the battery, and can accurately judge the internal resistance growth rate of different materials. The method is simple and convenient. That is, the method provided by the application has the advantages of short period, low cost, simplicity and convenience, and is suitable for evaluating and screening multiple materials in the material research and development stage.

The invention relates to the technical field of electronic circuits, and discloses a driving circuit, a key and an electronic device, the driving circuit comprises a control module and a first constant current module; the control module is connected with the first constant current module, the first constant current module is further connected with the power supply and the piezoelectric ceramic, and the power supply is further connected with the power supply load; the power supply is used for supplying power to power supply load output power supply current and outputting charging current to the first constant current module; the control module is used for outputting a charging signal to the first constant current module; and the first constant current module is used for keeping the charging current constant according to the charging signal, and transmitting the constant charging current to the piezoelectric ceramic for charging so as to reduce the fluctuation of the power supply current. Compared with the prior art, when the piezoelectric ceramic is charged, the constant charging current is adopted, so that reduction of the current transmitted to the power supply load by the power supply is reduced, the power supply stability of the power supply is improved, and the influence on the work of other devices is reduced.

This disclosure relates to a charging method, apparatus, electronic device, and medium. The charging method includes: determining a target charging current for the battery; when the target charging current is greater than or equal to a first target current, simultaneously charging the battery using a first charging circuit and a second charging circuit; when the target charging current and the total output current are not the same, adjusting the first output current of the first charging circuit while keeping the second output current of the second charging circuit constant, wherein the total output current is the sum of the first and second output currents. By adjusting the total output current in a manner that adjusts the first output current while keeping the second output current constant, the adjustment of the first output current can prevent an imbalance in the electrical parameters of the second charging circuit from triggering charging protection, thereby improving the reliability of battery charging.

The application relates to the technical field of power management, and discloses a configurable constant-current constant-voltage power supply system. The system comprises a voltage stabilizing unit, a current sampling unit, a voltage sampling unit, an analog-digital conversion unit and a processing unit. The current sampling unit converts output current into a voltage signal through a first resistor; the voltage sampling unit converts output voltage into a collectable voltage signal through a second resistor and a third resistor; the analog-digital conversion unit adopts two analog-digital converters to collect voltage signals of the first resistor and the third resistor respectively; the processing unit compares a constant-current value or a constant-voltage value set by a user and generates a control signal through a processing algorithm, and the output voltage of the voltage stabilizing unit is adjusted through a digital-analog converter. The application adopts a digital control scheme, a user can flexibly configure a working mode through software, has the advantages of high control precision, flexible parameter configuration and good stability, and is suitable for various application occasions requiring accurate current or voltage control.

The utility model discloses a battery charging constant-current constant-voltage circuit, which comprises a power interface, a constant-current circuit, a constant-voltage circuit and a battery pack, the power interface is used for being externally connected with a power supply; the constant current circuit is connected to the power interface and is used for limiting input current of an external power supply; the constant voltage circuit is connected to the constant current circuit and is used for stabilizing the output voltage and stabilizing the voltage within a rechargeable range of the battery pack; the battery pack is connected to the constant voltage circuit, is used for storing electric energy and carrying out charging and discharging management, and comprises a charging management circuit, a battery protection circuit and an electric quantity detection circuit. According to the scheme of the utility model, the thought that the current is set by the battery chip and the voltage is set by the voltage stabilizing source is ingeniously utilized, the power from the input source to the battery pack is effectively controlled, and a simple, applicable, reliable and flexible scheme is provided for application scenes in which small-power power supplies supply power to a system and continuously charge the system.

The application discloses a battery test system and a test method, wherein the system comprises an alternating-current constant-current excitation source, a master control unit and a plurality of independently arranged acquisition board cards; the alternating-current constant-current excitation source is connected to the first and last ends of a measured loop formed by a plurality of measured battery cells connected in series, is used for applying the same alternating-current constant-current excitation signal to all the measured battery cells, and simultaneously outputs a synchronous reference signal consistent with the alternating-current constant-current excitation signal to the plurality of independently arranged acquisition board cards; each acquisition board card is connected to only the sensing end of the corresponding measured battery cell, processes the sensing signal between the two ends of the corresponding measured battery cell, so as to obtain measurement data; and each acquisition board card reports the measurement data to the master control unit through a CANFD bus, and the master control unit collects and uploads the measurement data to an upper computer. The application realizes parallel and synchronous alternating-current internal resistance and direct-current open-circuit voltage test of a plurality of single battery cells in a series battery cell group, and improves the consistency and test efficiency of battery test.

The utility model discloses a kind of constant-current constant-voltage switching valves, it is characterized by including by two three-way valve bodies The six-way valve body, import passage and two mirror image settings export passage set on three-way valve body, valve rod movably installed in six-way valve body, connecting rod mechanism in the mirror image settings of valve rod two sides and the cam for driving connecting rod mechanism to act and switching flow path installed on valve rod. The utility model is switched by mirror image settings export passage and the setting of connecting rod mechanism, in the rotation process of being driven by rotating valve rod two to drive cam, the action of connecting rod mechanism is made by the pushing of cam to connecting rod mechanism, to export passage is switched, in switching process, the flow area of medium does not change, so that medium pressure does not produce fluctuation when switching, while medium pressure does not change, medium flow also does not change, to realize constant current constant voltage in switching process.

The utility model discloses a DC-DC (direct current-direct current) constant-voltage constant-current boosting electric vehicle charger. The internal circuit comprises a DC input and detection circuit, an input MOSFET TTP switch circuit, a boost circuit, an output filter circuit, an output battery voltage detection circuit, an LDO step-down circuit, an RX / TX one-wire communication input and output circuit, an OTP over-temperature protection circuit, an MCU control circuit, an output voltage control circuit and an output current control circuit. According to the DC-DC direct-current constant-voltage constant-current boosting electric vehicle charger, the input MOSFET TTP switching circuit, the direct-current boosting circuit, the MCU control circuit, the output voltage control circuit and the output current control circuit are designed, so that a power supply charger can be used on a direct-current charging pile with lower output voltage to quickly charge a high-voltage battery pack with higher voltage; in addition, the charging efficiency is high, the working performance is stable, and the charger is safer.

The present disclosure provides a modified silicon-carbon laminated lithium battery and its formation method. In the above-mentioned formation method, a highly elastic three-dimensional conductive mesh is formed in the silicon-based negative electrode sheet of the modified silicon-carbon laminated lithium battery, and it is a polymer diaphragm; the modified silicon-carbon laminated lithium battery injected with liquid is sequentially subjected to a first stage of low-temperature, low-voltage, small-current constant-current charging operation, a second stage of low-temperature, medium-voltage, medium-current constant-current charging operation, a third stage of high-temperature, high-voltage, large-current constant-current charging operation, and a fourth stage of low-temperature, high-voltage, large-current constant-current discharge operation, and finally a room-temperature static operation. The above-mentioned method enables the polymer diaphragm to change with the temperature change of the formation process, and the added highly elastic three-dimensional conductive mesh can effectively suppress the expansion and peeling problem of the silicon-based negative electrode of the high-energy, high-rate laminated lithium battery during the formation process, and also increases the elastic modulus of the negative electrode active material layer, reduces expansion deformation, and improves the cycle performance and high-rate performance of the modified silicon-carbon laminated lithium battery.

The application discloses a current fixed value setting method and device and electronic equipment. The method comprises the following steps: determining a set of operation scenarios of a power distribution network, and determining a set of system gears of a flexible interconnected device in the power distribution network; determining the fault current amplitude of a directional overcurrent protection device in the power distribution network under different fault categories according to the set of operation scenarios and the set of system gears; determining the fault current boundary of the directional overcurrent protection device under different fault categories according to the fault current amplitude; and determining the current fixed value corresponding to the directional overcurrent protection device according to the fault current boundary and a preset safety factor. The application solves the technical problem of low reliability of current fixed value setting due to the fact that the directional overcurrent protection setting method in the related art usually determines the fault current boundary based on a single working condition or an experience margin, and does not consider the operation uncertainty of the power distribution network and the flexible interconnected regulation capacity.

The application discloses a constant-current constant-voltage circuit and an electronic load for the electronic load, and relates to the technical field of electronic loads. The constant-current constant-voltage circuit comprises an MCU, a DAC module, a first error amplifier, a plurality of constant-current loops, a power supply end and a first differential amplifier, the plurality of constant-current loops are connected in parallel, the voltage or the current of the plurality of parallel constant-current loops is controlled through the DAC module and the first error amplifier, and the originally parallel circuit of a plurality of small closed loops is changed into the architecture of controlling small closed loops by a large closed loop. The plurality of constant-current loops are connected to the ground through a sampling resistor, the precision and the noise will not be affected by the measured power supply and overcurrent, and the sampling precision is high. The constant-current constant-voltage circuit has strong scalability, the number of the parallel constant-current loops can be infinitely stacked in theory, and is particularly suitable for the case of high voltage and small current.

The invention provides a battery constant-current and constant-voltage control system based on an analog digital loop. The battery constant-current and constant-voltage control system comprises a sampling circuit, a floating charge control system, a driving circuit and an analog loop. The sampling circuit collects an output signal of the driving circuit and feeds back a sampling signal to the floating charge control system; the floating charge control system outputs a voltage given signal and a current given signal to the analog loop, and adjusts the voltage given signal and the current given signal according to the sampling signal; the simulation loop generates a loop control signal according to the voltage given signal and the current given signal; the driving circuit drives the power converter according to the loop control signal and based on the signal, so that the power converter outputs the charging voltage and the charging current corresponding to the current given value and the voltage given value. Therefore, the problem of large current ripples caused by the combined action of a double closed-loop control voltage loop and a double closed-loop control current loop is solved; meanwhile, a mode of combining software adjustment and a simulation loop is adopted, and the problem that a traditional software control mode is insufficient in dynamic state is solved.

A processor-implemented method including determining a plurality of zones associated with a current charging profile of a battery of an electronic device by utilizing a multi-stage constant-current constant voltage (MSCC-CV) charging protocol, segregating the determined plurality of zones into a first zone, a second zone, and a third zone, based on a preset criterion, and determining, based on information associated with one or more of the first zone, the second zone, and the third zone, one or more of an end of life (EOL) of the battery, a short circuit of the battery, and a state of health (SOH) of the battery to determine performance of the battery.

The invention relates to the technical field of high-power wireless charging systems, in particular to a wireless charging system based on modular parallel connection, which comprises a data acquisition module, a control processing module, a power regulation module and an output management module, the data acquisition module acquires battery parameters of load equipment and transmits the battery parameters to the control processing module; the control processing module inquires a voltage and frequency mapping relation to generate a control signal comprising a switching frequency and a module activation instruction; the power regulation module comprises a plurality of parallel single-tube inversion units, receives a control signal to regulate the on-off state of each unit, and reduces the voltage stress of a single tube through a resonance network; and the output management module switches the compensation capacitor mode according to the control signal to reconstruct the output voltage. The system disperses the power load through a modular parallel structure, completes zero-voltage switching and constant-current and constant-voltage charging in combination with intelligent control, and improves the power expansion capability and the equipment interoperability.

This invention proposes a wireless charging system and parameter design method with zero-phase-angle constant current and constant voltage output characteristics. The wireless charging system specifically includes a DC voltage source U. DC Inverter bridge, primary-side compensation network, transmitting coil L p2 Receiver coil L' s1 Secondary-side compensation network, rectifier bridge, and load resistor R; the DC voltage source U DC The inverter bridge is connected to the primary-side compensation network and the transmitting coil L. p2 Connected, the transmitting coil L p2 With receiving coil L' s1 Mutual inductance, the receiving coil L' s1 The system is connected to a secondary compensation network and a rectifier bridge, with the rectifier bridge connected to the load resistor R. This invention achieves constant current / constant voltage operating mode switching only through two fixed operating frequencies under varying coupling coefficients, with both operating modes satisfying zero phase angle. Furthermore, the compensation topology suppresses higher harmonics in the rectifier unit, making the system's output current and voltage values ​​more stable.

The utility model discloses a photovoltaic power generation equipment fault arc detection device comprising a current detection instrument, the current detection instrument is connected in series with a detection current adding device and a current regulator, two ends of the current detection instrument after series connection are respectively connected to corresponding output ends of a photovoltaic string to be detected to form a photovoltaic string anti-current detection loop, and the detection current adding device comprises a DC power supply. A constant-current constant-voltage module connected with the direct-current power supply is further arranged in the detection current adding device, and the two ends of the current detection instrument connected with the current regulator in series are also connected to the corresponding output ends of the photovoltaic string to be detected respectively to form a photovoltaic string short-circuit current detection loop. And the photovoltaic group string short-circuit current detection loop and the photovoltaic group string anti-current detection loop are detected and switched through a change-over switch. The photovoltaic power generation equipment fault arc detection device can rapidly and conveniently detect a photovoltaic string which may have a DC fault arc, and improves the safety performance of the photovoltaic power generation equipment.

An LED high-voltage direct-current drive circuit, a chip and an LED lighting circuit belong to the technical field of energy-saving lighting control, solve the problem of how to improve the lighting efficiency of LED lighting, and comprise a power taking circuit, a reference voltage circuit, a voltage constant circuit, a comparison amplification circuit, a current constant circuit, a control output circuit and a soft start circuit which are connected with one another. When the external high-voltage direct-current power supply voltage is higher than the rated voltage and lower than the protection voltage and the external high-voltage direct-current power supply voltage is lower than the rated voltage, the voltage constant circuit controls the working state of the external MOS tube, so that the LED lighting module works in a constant-voltage or constant-power state; the current constant circuit controls the working state of the external MOS tube by collecting the current of the LED lighting module, so that the LED lighting module works in a constant current state; and high-reliability and high-luminous-efficiency LED illumination is realized under the condition of high-voltage direct-current power supply.

The invention provides a wireless charging constant-current and constant-voltage closed-loop control method and system based on PID control, is applied to a magnetic coupling wireless charging system comprising an LCC-S compensation network, and relates to the technical field of wireless charging. Input voltage is adjusted through the primary side Buck converter, proportional-integral-differential adjustment is executed in combination with receiving side current, voltage real-time feedback and charging stage judgment, feed-forward compensation is superposed, the duty ratio is dynamically adjusted, constant-current and constant-voltage control precision and response speed are improved, and high efficiency, stability and robustness enhancement in the charging process are achieved.

The application provides a platformized headlamp driving system and a driving method, and belongs to the technical field of automobile lighting. The driving system comprises at least one platformized driving control device and an LED load connected with the platformized driving control device. The platformized driving control device comprises an anti-reverse connection module for protecting the constant-current constant-voltage driving module; an MCU control module is used for automatically adjusting the current value and / or voltage value output by the constant-current constant-voltage driving module through PWM dimming based on the voltage value of the BIN resistor obtained through the RBIN pin; the constant-current constant-voltage driving module is externally connected with the LED load, and is used for driving the LED load to work based on the output current value and / or voltage value; an LDO module is used for providing working voltage for the MCU control module; the MCU control module is used for controlling the working state of the switching module through PWM; and a communication module is used for driving configuration and / or driving upgrade of the MCU control module. The development cost and development cycle of the driving system are reduced, and the universality of the driving system is improved.

The application provides a constant current control circuit suitable for power supply parallel connection, solves the problem that the output current constant current value of a traditional redundant backup power supply system is far more than the rated demand current value of a load, thereby endangering system safety, and realizes that the output constant current total current of the redundant backup power supply system is the system constant current limiting value, rather than the sum of the constant current values of each power supply. When one power supply fails to exit the parallel connection state, the constant current point of the power supply still in the working state is automatically changed, the load current demand is ensured, and the reliability of the system is improved.

The utility model discloses a direct current constant pressure boosting zero cold water all-in-one machine which comprises a water return device shell and further comprises a zero cold water adjusting pipe set, the zero cold water adjusting pipe set is connected to the water return device shell, a back plate is connected to one side of the water return device shell in a clamped mode, and a direct current circulating pump is installed in the water return device shell. A circuit board is installed on the back plate, and the input end and the output end of the direct-current circulating pump are each provided with a thread assembly pipe fitting communicated with the zero cold water adjusting pipe set. Through the arrangement of the temperature sensing probe and the like, when the device is used, the water flow sensing switch, the water pressure control valve and the temperature sensing probe which are sequentially installed on the water return pipe can achieve the effects of intelligently regulating and controlling the pressure of return water and intelligently monitoring the temperature of the return water when the return water is sensed; and through a control circuit electrically connected with the corresponding water heater on the circuit board, the final hot water discharge pressure and temperature can be intelligently regulated and controlled, and constant-temperature and constant-pressure protection is achieved.

The invention discloses a head-mounted LED operating shadowless lamp circuit and a head-mounted LED operating shadowless lamp, and belongs to the technical field of medical instruments. The circuit comprises an LED direct current driving chip, a voltage sampling resistor, a current sampling resistor, a soft start capacitor, an external MOS tube and LED lamp beads connected in parallel. A soft start circuit, a power taking circuit, a reference voltage circuit, a voltage constant circuit, a comparison amplification circuit, a current constant circuit and a control output circuit are arranged in the LED direct-current driving chip, constant-voltage, constant-power or constant-current driving can be achieved, PWM dimming is not needed, and therefore the stroboflash phenomenon is thoroughly eliminated, and lighting uniformity and visual comfort are improved. The device is simple in structure, high in integration level, good in reliability and suitable for fine operation occasions such as surgical operations.

The utility model discloses a constant-current constant-voltage control circuit, which comprises a control circuit, a constant-voltage ring and a constant-current ring, wherein the constant-voltage ring and the constant-current ring are electrically connected with the control circuit; the control circuit collects numerical values of an operational amplifier U2 and an operational amplifier U3 which are respectively included in the constant voltage ring and the constant current ring and amplifies the differential pressure of the operational amplifier U2 and the operational amplifier U3, and the constant voltage ring and the constant current ring are respectively connected with the switching diode D4 through a switching diode D2 and a switching diode D3. The power supply constant-voltage loop is only slightly higher than a constant-current loop in open loop, and enters a closed loop in advance in operation, so that the operational amplifier saturation of the constant-voltage loop is prevented, and the problem of power supply output overshoot is effectively suppressed.

The invention discloses a constant-current and constant-voltage wireless charging hybrid control system and method, and relates to the technical field of wireless charging. The system comprises an adjustable power supply device, a wireless charging transmitting device and a wireless charging receiving device. The adjustable power supply device comprises a voltage regulating plate, and the output end of the voltage regulating plate is connected with a programmable power supply. According to the system, the input voltage is controlled through the front-stage voltage regulating plate to perform wide-range coarse adjustment, and rapid fine adjustment is performed in combination with the rear-stage phase shift control, so that a hybrid control strategy is formed. In the constant-current or constant-voltage charging process, the phase shift angle is always maintained in a preset efficient working window by monitoring and controlling the phase shift angle in real time. When the phase shift angle deviates from the window, the pre-stage input voltage is automatically adjusted and pulled back, so that the system can work in a soft switching state and a high-efficiency interval in a full-load range; the technical problem that high efficiency and high stability of constant-current and constant-voltage output are difficult to consider at the same time due to large-range change of equivalent impedance in the battery charging process is effectively solved.

The invention relates to the technical field of battery control, and discloses a zinc-series water battery constant-current constant-voltage cooperative control system and method, and the method comprises the steps: collecting battery data in real time through a multi-source sensing module; constructing and solving a zinc ion diffusion equation and an interface electrochemical reaction equation by utilizing an embedding-de-embedding dynamic modeling module; the adaptive switching decision module dynamically calculates an optimal voltage threshold value; the cooperative control execution module controls the charging current and voltage according to the threshold value; and the data driving compensation module corrects model parameters on line and performs feedforward compensation on an instruction. The system comprises a multi-source sensing module, an embedding-de-embedding dynamic modeling module, a self-adaptive switching decision module, a cooperative control execution module and a data driving compensation module. According to the technical scheme, the charging capacity error can be controlled within + / -2%, the switching opportunity deviation is smaller than 5 seconds, the control precision and efficiency of the charging process are remarkably improved, and zinc dendritic crystal growth is effectively inhibited.