1102 results about "Electric capacity" patented technology

The invention discloses a charging and discharging control method and device for an elevator energy storage system, a medium and a product, and relates to the field of data processing. The method comprises the steps that real-time operation data such as the position and the load capacity of an elevator car are obtained, and the instantaneous power generation power and the power change rate of a traction machine are determined accordingly; determining a power change predicted value in a future preset time period based on the parameters, and obtaining the total amount of power generation energy required to be stored by the energy storage system through zero setting of a positive value, integral operation and efficiency compensation; according to the power change rate, the state of the energy storage unit and the power grid electricity price time period, the charging and discharging priorities fed back by the super capacitor, the lithium battery and the power grid are determined; controlling the bidirectional DC / DC circuit to switch charging and discharging modes according to the priority, and adjusting the PWM duty ratio of the brake resistor; and based on the charging and discharging mode and the duty ratio, charging and discharging control over the elevator energy storage system is achieved. According to the method, the problem of inaccurate real-time matching of the dynamic load and the energy fluctuation of the current elevator energy storage system can be relieved.

The invention discloses an intelligent charging pile core module based on a VIENNA structure, an electric energy quality management method, system and equipment and a storage medium, and belongs to the field of electric power system energy storage equipment.The intelligent charging pile core module based on the VIENNA structure comprises the steps that an integrated power conversion unit is constructed, the power conversion unit adopts a VIENNA rectifier topology, three-phase alternating current is converted into direct current, and the direct current is converted into direct current; a harmonic suppression structure linked with the control interface is arranged; state information in the operation process is collected and serves as input of the control strategy module; based on the state information, a modulation control instruction is generated in the control strategy module to drive the switching action of the power conversion unit; on the basis of the modulation control instruction, the switch control is executed, meanwhile, the direct-current side midpoint potential of the power conversion unit is synchronously adjusted, and the distribution of direct-current bus capacitor voltage is controlled; and identifying the current operation condition according to the state information, switching to a control template corresponding to the operation condition in the control strategy module, and generating a modulation control instruction.

The invention discloses a hybrid energy storage capacity configuration method based on an energy storage characteristic and instruction difference dynamic matching strategy and a related device, and relates to the technical field of power system energy storage, and the method comprises the steps: carrying out the mode division according to the amplitude of a total power instruction signal of a hybrid energy storage system, and carrying out the configuration of the hybrid energy storage capacity based on the dynamic matching strategy; distributing the total power instruction signal to a super capacitor and a lithium battery, and calculating the charge states of the super capacitor and the lithium battery; constructing a control configuration integrated model by taking the total power command signal as input and the charge state as feedback; determining value range constraints of the configuration parameters and the control parameters; and under constraint conditions, solving the comprehensive multi-objective optimization function of the control and configuration integrated model by adopting a traversal algorithm to obtain an optimal configuration parameter and control parameter combination, and determining a hybrid energy storage capacity configuration scheme of the hybrid energy storage system. The problems of insufficient energy storage utilization and insufficient frequency modulation precision in a traditional method can be solved.

The present invention provides a battery energy storage parallel equalization converter topology and a control method therefor. The battery energy storage parallel equalization converter topology comprises a series-connected battery energy storage parallel equalization converter, a main converter, and a plurality of groups of filter inductors; in the main converter, the input side of a DC / DC or DC / AC converter is connected in parallel to a parallel voltage-stabilizing capacitor, and the output side of the DC / AC or DC / AC converter is correspondingly connected to an AC or DC source load; the series-connected battery energy storage parallel equalization converter comprises a plurality of groups of small-capacity DC / DC converters and a common DC bus capacitor; the output sides of all the small-capacity DC / DC converters are connected in parallel by means of the common DC bus capacitor to form a common DC bus; the input side of one group of small-capacity DC / DC converters is connected in series to the input side of the main converter, and the input sides of other groups of small-capacity DC / DC converters are connected in series to a battery pack by means of the filter inductors, respectively. According to the present invention, in a battery charging and discharging process, only a small amount of power flows through the converter, reducing the capacity requirements of the converter, and reducing the transmission efficiency.

The invention discloses a thermal power energy storage combined frequency modulation control method and system, and belongs to the technical field of power system frequency modulation control, and the method comprises the steps: S1, carrying out the cooperative control through a DCS, an electrical RTU, and a PMU device, and collecting data in real time; s2, establishing an EMS system, performing real-time monitoring on operation parameters, and performing energy storage available capacity evaluation; s3, judging whether the unit is in an AGC automatic control mode or not, if so, calculating a power deviation value actually sent by the unit, and generating an energy storage system dynamic compensation instruction, otherwise, returning to S1; s4, executing an energy storage system dynamic compensation instruction, and implementing a cooperative control strategy by adopting a hybrid energy storage architecture formed by a super capacitor and a lithium iron phosphate battery; s5, executing the charging and discharging power instruction through the power conversion system, and configuring an electric core level over-charging and over-discharging protection mechanism; and S6, judging whether a primary frequency modulation action signal of the power grid is detected or not, if so, immediately terminating the response of the energy storage system to the power grid AGC instruction and maintaining the current power output state, and if not, returning to S3.

The invention discloses a fuel cell hybrid electric vehicle power distribution method based on heuristic action planning deep reinforcement learning. The method comprises the following steps: establishing a power distribution system model of a fuel cell hybrid electric vehicle equipped with a lithium battery and a super capacitor; a power layered structure is provided, a deep reinforcement learning model of the fuel cell hybrid electric vehicle is designed, a probability transfer matrix of required power is constructed, and model training is performed in a data driving mode; designing a reward function by adopting an equivalent consumption minimum strategy, and guiding optimization of an energy management strategy by fuel economy; the motion space of deep reinforcement learning is improved by adopting heuristic planning, and smooth output of the fuel cell is kept on the premise of reducing equivalent hydrogen consumption. According to the method, power distribution of the three-energy-source fuel cell hybrid electric vehicle can be achieved in a complex and random driving environment, hydrogen consumption is reduced, dynamic adaptability to different driving conditions is improved, and meanwhile the method has the potential of real-time application.

Methods and systems may reliably predict the lifespan characteristics of a lithium secondary battery, for example, the mode of variation in cycle capacity in advance. A method may include a first step of subjecting a lithium secondary battery in a form of a blocking cell to an impedance spectroscopic analysis, a second step of deriving a relationship capacitance for each frequency and a calculating a charge amount, a third step of repeatedly performing the first and second steps, and a fourth step of measuring a capacity for each cycle of the lithium secondary battery and deriving a prediction expression of the capacity for each cycle of the lithium secondary battery.

The invention discloses an active discharge redundancy method for a crane, belongs to the technical field of active discharge of cranes, and aims to solve the problems of low discharge speed, incomplete discharge, single discharge means and incapability of discharging voltage of a fault branch and a bus capacitor of a high-voltage system when a fault occurs in the prior art. According to the method, a certain branch driver is reserved as a system branch for discharging of a system bus, and when other branches fail and cannot discharge, a system branch Km is adopted for discharging. When a system branch discharges, in order to reduce the discharge capacity of a driver of the system branch, low-voltage DCDC and PTC are adopted to discharge a bus capacitor in advance, and after the voltage is reduced to the voltage within the working range, the driver is adopted to perform active discharge, so that the active discharge time of the driver is shortened, and heating of the driver of the branch electric cylinder is reduced. When the whole vehicle breaks down seriously, the bleeder resistor is used for releasing bus voltage, and it is guaranteed that discharging is achieved in the fault state.

The invention provides a new energy automobile energy closed-loop system, method and product based on waste heat cascade recovery. The system comprises a waste heat cascade recovery subsystem for collecting multi-source waste heat of the new energy automobile and converting the multi-source waste heat into electric energy; the dynamic energy management subsystem is used for storing electric energy and determining a power-on path of the new energy automobile according to the state of the new energy automobile, and the state of the new energy automobile comprises the speed change rate of the new energy automobile, the charge state of the super capacitor bank and the charge state of the lithium battery pack; and the self-powered closed-loop control subsystem is used for monitoring the temperature of the battery module in the power-on process of the new energy automobile and calling electric energy to drive a heater when the temperature of the battery module is lower than a preset temperature threshold value so as to realize closed-loop temperature control. Therefore, the waste heat utilization rate of the new energy vehicle can be improved and the closed-loop management of the energy of the whole vehicle can be optimized by performing stepped recovery on the waste heat of the new energy vehicle and supplying power to the vehicle based on thermoelectric conversion.

The invention relates to the technical field of photovoltaic energy storage optimization control, in particular to a photovoltaic energy storage integrated charging and discharging control method and system, and the method comprises the steps: collecting a multi-mode signal, and carrying out the synchronization and denoising of a time-sensitive network, and then carrying out the fusion; generating heat source power density, battery aging parameters and linear embedding state data by using a liquid nerve-thermal power and electrochemical coupled digital twin system; on the basis of a space-time Gaussian process sampling probability scene of the state data, high-dimensional super-symbol coding and mutual information screening compression scene set, determining an optimal charging and discharging state in a quantum-variable temperature global optimization model by combining aging parameters, and generating a reference power trajectory; the neuromorphic chip operates convex model prediction control to output a real-time power instruction; and the inverter executes charging and discharging through pheromone game and self-distillation reinforcement learning, triggers the super capacitor support when the frequency is abnormal, and executes data writing-in distributed account book closed-loop updating. According to the invention, millisecond-level power tracking is realized, and cyclic stress is reduced.

A battery dynamic-equalization apparatus includes a power battery including a first battery pack and a second battery pack, a motor controller connected to the power battery, a motor connected to the motor controller, and a controller connected to the motor controller. The controller is configured to: control, in a first preset state, a bridge arm of the electric-motor controller to drive the electric motor, cause a first battery pack and a second battery pack to be alternately charged and discharged so as to realize self-heating of the first battery pack and the second battery pack, and to configure the absolute value of the difference value between the capacitance of the first battery pack and the capacitance of the second battery pack to be lower than a preset threshold value.

The invention provides a negative electrode active material and a preparation method thereof, a negative electrode for a sodium ion battery, the sodium ion battery and an electric device. The negative electrode active material comprises a nitrogen-doped carbon sphere matrix and manganese monoxide embedded into the nitrogen-doped carbon sphere matrix, the average particle size of the manganese monoxide is 1.5 nm to 2.5 nm. In the negative electrode active material, the quantum-dot-level MnO is embedded into the nitrogen-doped carbon sphere matrix, so that a tight embedded structure (non-surface loading) of the quantum-dot-level MnO and the nitrogen-doped carbon spheres can be realized, volume expansion when sodium ions are embedded and removed is effectively relieved, and an efficient electron / ion transmission channel is provided. Meanwhile, the quantum dot-level MnO has a larger specific surface area, and provides more adsorption sites with the nitrogen-doped carbon, so that the composite material shows a pseudocapacitance-dominated sodium storage behavior, and is endowed with ultrahigh rate capability and ultra-long cycle life.

The invention discloses a port micro-grid hybrid energy storage capacity optimal configuration method, which comprises the following steps of: firstly, acquiring power generation data, and filtering wave energy and wind energy data by adopting a sliding filtering algorithm according to a grid power fluctuation standard to reduce power fluctuation; decomposing the power demand of the hybrid energy storage system through a variational mode decomposition technology, and separating power components in different modes; carrying out feature extraction and analysis on the power component of each mode by utilizing Hilbert transform, and optimizing a power distribution strategy; and finally, combining economic evaluation models of the battery and the super capacitor to realize capacity optimization configuration of the hybrid energy storage system. According to the method, the capacity minimization configuration of the battery and the super capacitor can be realized, and the operation efficiency and the economical efficiency of the port micro-grid hybrid energy storage system are effectively improved.

The invention belongs to the technical field of transformer control, and particularly relates to a new energy transformer control method considering hybrid energy storage access, and the method comprises the steps: building a new energy transformer grid-connected architecture which comprises a distributed power supply, an electrochemical energy storage and super-capacitor hybrid energy storage system and a load; establishing a new energy transformer node power matching model according to source network load storage input and output characteristics; a hybrid energy storage control model is established based on electrochemical energy storage and super capacitor charging and discharging characteristics; optimizing an input and output model of the hybrid energy storage system according to a time-of-use electricity price policy; constructing a multi-objective optimization function with the minimum fluctuation, the lowest loss and the maximum operation benefit; and carrying out normalization weighting on the minimum fluctuation, the lowest loss and the maximum operation income to solve a comprehensive optimization target, and dynamically adjusting the input power of the transformer. The method aims at optimizing cooperative work of an electrochemical energy storage system and a super-capacitor energy storage system, optimizing a new energy transformer adjusting strategy and achieving reliability and economics of system operation.

A diesel generator starting system comprises a charger (200) which is provided with a positive electrode interface (210) and a negative electrode interface (220); the diesel generator starting system further comprises a super capacitor (400). The super capacitor is provided with a positive terminal (410), a negative terminal (420) and a starting terminal (430); the positive electrode interface of the charger is connected with the positive electrode terminal of the super capacitor; a cathode interface of the charger is connected with a cathode terminal of the super capacitor and is used for being connected with a cathode of a starting interface of a diesel generator (100); the starting terminal of the super capacitor is used for being connected with the positive electrode of the starting interface of the diesel generator. According to the diesel generator starting system, by means of the advantages of high power, long service life, no maintenance and low temperature resistance of the super capacitor, reliable and stable starting of the diesel generator is guaranteed.

The invention discloses a low-temperature exposed lithium battery aging damage diagnosis method based on electrochemical nondestructive characterization, which comprises the following steps: firstly, acquiring electrochemical response data of a to-be-tested battery through electrochemical impedance spectroscopy (EIS) test and incremental capacity analysis (ICA); secondly, key characteristic parameters capable of representing ohmic internal resistance, charge transfer resistance and electric double-layer capacitance of the battery and phase change peak position, peak area, half-peak width and the like are extracted; and then, training a joint prediction model based on machine learning by using the extracted multi-dimensional features to judge whether the to-be-detected battery is subjected to over-low-temperature exposure or not and judge the current aging damage degree of the to-be-detected battery. According to the method, unique aging paths introduced by normal aging and low-temperature exposure can be effectively distinguished through a nondestructive testing means, accurate'traceability 'of historical damage of the battery and quantitative evaluation of the current state are achieved, and reliable technical support is provided for intelligent decision making of a battery management system (BMS), battery safety early warning and echelon utilization.

A battery management system includes a sensor to sense voltage and current of a battery, memory to store over-potential management information including reference peak and reference peak voltage values, and a controller to command constant-current charging using a maximum allowable C-rate to a charging circuit when the reference peak value is equal to or larger than a threshold peak value, in response to a charge request, determine a differential capacity curve indicating a correlation between the voltage and differential capacity of the battery within a range based on the sensed voltage and current during the charging, determine main peak and main peak voltage values indicating differential capacity and voltage of a peak of the differential capacity curve, respectively, and update the reference peak and reference peak voltage values to equal the main peak and main peak voltage values, when the main peak value is less than the threshold peak value.

The invention discloses a new energy unmanned ship battery power control method and system, and the method comprises the steps: an unmanned ship total system sends a start-stop instruction to a BMS, and carries out the automatic awakening and starting of a battery pack; after the BMS is started, the voltage of a battery module, the current of a main loop and the temperature of key components are detected, and if normal, a pre-charging circuit is started to pre-charge a high-voltage loop capacitor; after pre-charging is completed, the BMS disconnects the auxiliary contactor and closes the main contactor, and the battery module supplies power to the electric equipment; during operation, the BMS acquires operation data in real time and uploads the operation data to the unmanned ship total system for monitoring through an external CAN bus; when the multiple battery packs are connected in parallel, cooperative charging and discharging control is carried out through an external CAN bus; the unmanned ship main system sends a shutdown instruction, and the BMS cuts off the main contactor; when abnormity is monitored, the BMS triggers the main fuse to fuse and cuts off self power supply. According to the method, the problem of safe starting is solved, the battery state monitoring precision is improved, a multi-dimensional safety protection system is constructed, and multi-battery-pack cooperative control is optimized.

The invention relates to the technical field of battery energy management, and discloses a battery energy management system of electric stretching equipment. The system comprises a battery energy recovery module, a battery energy supply module, a battery energy dynamic distribution module and a battery energy regulation module, firstly, tension machine energy is captured and stored in a super capacitor, then super capacitor energy is stored in a battery pack, and a battery energy storage unit is formed; secondly, considering the energy contribution priority of the tension machine and the energy supply of a battery energy storage unit, optimizing the current tolerance limit and the voltage tolerance limit in the energy supply of the traction machine by using a multi-strategy fused sparrow search algorithm, and generating a battery energy dynamic distribution strategy; and finally, the working state of the battery energy storage unit is adjusted based on temperature-voltage closed-loop feedback, and battery energy management is completed. Energy management is carried out on the electric stretching equipment, the purpose of battery energy management is achieved, and the method is accurate and objective.

The invention discloses a full-working-condition driving force optimal distribution control method based on an HCU, and relates to the technical field of new energy automobile control, and the method comprises the following steps: building a long slope energy flux analysis model, generating a time sequence envelope curve of recovery power based on a slope, an automobile speed and a wheel end inertia, and extracting a local peak value interval in the time sequence envelope curve; and in the peak value interval, based on the open-circuit voltage, pulse current and impedance spectrum information of the power battery, online identifying the absorption capacity of the power battery, correcting the upper limit of the state of charge of the power battery, determining a rechargeable current threshold value, carrying out coupling analysis on the threshold value and the recovery power envelope curve, and identifying the reverse current risk time period of the inverter. According to the method, real-time constraint on the absorption capacity of the power battery under the long-slope deceleration working condition is achieved, the inverter reverse irrigation risk is recognized, a peak clipping track and a transient discharge channel are constructed, micro-pulse, accessory absorption and super-capacitor shunting are fused, energy closed-loop control is formed, and the safety of the whole vehicle and the energy utilization efficiency are improved.

The invention relates to the technical field of hydrogen production, in particular to an off-grid micro-grid hydrogen production system containing hybrid energy storage and a residual electricity consumption method. Comprising a renewable energy power generation unit, a hybrid energy storage unit, a hydrogen production unit, a standby load unit and a central controller, the renewable energy power generation unit is connected with the hybrid energy storage unit through a direct current bus, the hybrid energy storage unit comprises a super capacitor bank and a lithium ion battery pack, the super capacitor bank and the lithium ion battery pack are connected to the direct current bus in parallel through a bidirectional DC / DC converter, and power distribution of the super capacitor bank and the lithium ion battery pack is dynamically complementary based on real-time fluctuation frequency; the hydrogen production unit comprises an electrolytic cell and a hydrogen storage device, the electrolytic cell is connected with the direct current bus through a first DC / DC converter, and the standby load unit is connected with the direct current bus through a second DC / DC converter; the scheme can accurately quantify the polarization effect and dynamically correct the hydrogen production power.

The invention belongs to the field of lithium recovery, and particularly relates to a method and a system for electrochemically recovering lithium ions in ternary lithium battery leachate. The method comprises the following steps: (1) leaching the cathode material of the waste ternary battery to obtain a ternary leachate; (2) performing lithium ion enrichment in a capacitive deionization device by taking the ternary leaching solution obtained in the step (1) as a lithium source to obtain a lithium-rich receiving solution and a lithium-removed recycling solution; (3) recovering the lithium-rich receiving liquid to obtain recovered lithium; and performing non-lithium metal element recovery on the lithium-removed recovery liquid. According to the technical scheme, the rocking chair type capacitive deionization RCDI system adopts a waste ternary battery cathode material (SNCM) as an electrode material, the extraction quantity of a single reaction cycle can reach 4.90 mM g <-1 >, continuous and selective lithium extraction is realized, and meanwhile, the cost and the environmental influence are reduced.

The invention relates to the technical field of power battery charging, in particular to an electric quantity SOC correction method and system for a power battery, and the method comprises the steps: determining a correction demand index at each moment based on the change characteristics of an electric double-layer capacitor and the influence degree of a polarization resistor on the SOC; according to the capacity of the dynamic battery and the temperature change characteristic of each moment, determining a dynamic proportion parameter of each moment by adopting an Arrhenius equation, combining the dynamic proportion parameter with the correction demand index in the correction period of each moment, determining the predicted offset of the SOC of each moment, and determining the SOC after initial correction of each moment; based on the current amplitude of the moment before each moment, the battery standing time of each moment is determined, and the filtering window width is determined by combining the fluctuation condition of the current in the correction period of each moment; and carrying out secondary correction on the SOC after the primary correction in combination with a filtering operation. The invention aims to improve the accuracy of the corrected SOC in a dynamic environment.

The invention provides a sodium ion battery capacitor and a preparation method thereof. The sodium-ion battery capacitor comprises a positive pole piece, a negative pole piece, a diaphragm and an electrolyte, the positive pole piece comprises a composite positive pole material, and the composite positive pole material comprises a capacitive material and a layered oxide; the negative electrode plate comprises a composite negative electrode material, and the composite negative electrode material comprises hard carbon and a surface functional group modified porous carbon nanotube. The capacitive material and the layered oxide are synergistically matched to serve as the composite positive electrode material, a three-dimensional porous network structure is formed, and the synergistic effect of the double-electrode-layer capacity and the oxidation-reduction reaction can be improved; the hard carbon and the surface functional group modified porous carbon nanotube are synergistically matched to serve as the composite negative electrode material, so that the sodium ion diffusion path, the electrolyte infiltration area and the charge-discharge efficiency are favorably optimized, and the sodium ion adsorption capacity is improved. The sodium ion battery capacitor has the characteristics of high energy density, high power density, wide temperature range charging and discharging capability and the like.

The invention relates to the technical field of aircraft power systems, and discloses a hybrid power management system suitable for a vertical take-off and landing aircraft and a control method. A lithium battery pack; a super capacitor; the power distribution module is electrically connected with the main turboprop engine, the lithium battery pack and the super capacitor and used for controlling energy flow among the main turboprop engine, the lithium battery pack and the super capacitor according to instructions. The control method comprises the steps that a staged power distribution strategy is executed according to judged flight stages such as vertical take-off and landing, horizontal cruise or emergency, instantaneous power is compensated through a super capacitor during vertical take-off and landing, and combined propulsion or energy recovery is decided according to key parameters such as the lift-drag ratio during horizontal cruise. According to the scheme, the vertical take-off and landing response and flight stability are improved, the endurance mileage is increased, and the intelligence and safety of the system are improved through self-adaptive control and redundancy design based on the ground digital twin model.

A power conversion device and an uninterruptible power supply are used for reducing the cost of the power conversion device and reducing the size of the power conversion device. The power conversion device comprises a conversion circuit, a bus capacitor branch, a resistor module, a first switch module and a controller. The input end of the conversion circuit is connected with the power supply, and the output end is connected with the bus capacitor branch through the resistor module; the first switch module is connected in parallel with the resistor module; the controller is connected with the first switch module, controls the first switch module to be switched off when the conversion circuit is connected with the power supply and the voltage of the bus capacitor branch is smaller than a preset threshold value, and controls the first switch module to be switched on when the voltage of the bus capacitor branch is larger than or equal to the preset threshold value. When the bus capacitor needs to be pre-charged, the first switch module can be controlled to be switched off, and the resistor module serves as a current-limiting resistor to charge the bus capacitor branch. And after the bus capacitor branch is charged, the first switch module is controlled to be closed, so that the loss generated by the resistor module during normal power supply is eliminated.

The invention provides an AC soft start control method of a three-phase four-bridge-arm topology. The method comprises the following steps: S1; the power grid access state of the energy storage inverter is obtained, the power grid access state is identified according to alternating current incoming line modes, and the alternating current incoming line modes comprise a single-phase incoming line mode and a three-phase incoming line mode; a single-phase incoming line mode is adopted to control bus voltage, and the bus voltage is gradually increased to a target value; and after the bus voltage is stable, the three-phase incoming line mode is switched to continuously control the bus voltage to be output to a set value. Firstly, by slowly increasing the bus voltage and the output voltage in stages, the current peak value in the system starting process is remarkably reduced, and the impact current can be reduced by 30%-50%, so that a power device and a bus capacitor are effectively protected, and device damage caused by large current impact is avoided. And secondly, a dynamic neutral point compensation technology is introduced, so that the waveform quality of the output voltage is remarkably improved, the total harmonic distortion (THD) is lower than 3% and is superior to the performance which is usually higher than 5% in a traditional method, and the electric energy quality and the operation stability of the system are improved.

The invention relates to the technical field of energy storage element management, and discloses a lithium battery and super-capacitor management system, which comprises an energy storage module, a coordination module, a power distribution module, a power distribution module, a power distribution module, a power distribution module, a power distribution module and a power distribution module, and is characterized in that the energy storage module comprises a plurality of groups of super-capacitors and a plurality of groups of lithium batteries; the energy prediction module is provided with an energy storage monitoring unit, a hierarchical feedback unit and an automatic tuning unit, the energy storage monitoring unit is used for predicting energy storage data of the multiple groups of super capacitors and the multiple groups of lithium batteries, and a prediction result is output to the hierarchical feedback unit; the hierarchical feedback unit identifies the energy storage level of the energy storage module, the electric quantity switching between the lithium battery and the super capacitor is allocated in advance, and finally the automatic tuning unit optimizes the total power predicted value of the super capacitor and the electric quantity allocation result, so that the electric energy transmission efficiency of the super capacitor and the lithium battery is improved, and the energy consumption is reduced. And the influence of electric energy surplus and capacity overload on the system is reduced.

The utility model provides an energy storage type thermal battery activation circuit which comprises a power supply module, a super capacitor C2 and a switch module which are connected in sequence, and the switch module and the super capacitor C2 are respectively connected with a control module. The power supply module is used for charging the super capacitor C2, the control module is used for controlling the switch module to be closed after the voltage at the two ends of the super capacitor C2 reaches a set threshold value, and activation current output by the super capacitor C2 is output to the igniter through the switch module to activate the thermal battery. According to the utility model, the super capacitor C2 is charged and stored in advance through the power supply module, and then the super capacitor C2 is instantly discharged to provide energy required by activation of the thermal battery, so that activation of the thermal battery is realized, the power of the power supply module can be greatly reduced, and the volume and the mass of the thermal battery activation device can be reduced; and the device is suitable for carriers with requirements on installation space or overall quality.

The invention relates to the technical field of hybrid electric vehicle energy management, in particular to a hybrid electric vehicle layered reinforcement learning energy management method considering energy source life and energy consumption optimization. The method comprises the following steps: establishing an energy management system model and an energy source degradation model; energy source physical characteristics are analyzed, demanded power is processed in a layered mode, and an energy management learning strategy based on historical data is constructed; and energy management is implemented by combining the demand power change, the lithium battery, the super capacitor SOC and the degeneration degree of the energy source. Fuzzy filtering is adopted to shunt required power, a high-frequency peak value is borne by a super capacitor, and low-and-medium-frequency power is proportionally distributed by a lithium battery and a fuel battery according to the degradation degree; energy source degradation and deep reinforcement learning are fused, related parameter weighting is introduced into the ECMS, and lithium battery charging and discharging current is restrained. According to the method, comprehensive energy consumption can be reduced, energy source degradation is slowed down, the working condition application range is widened, overcharge and overdischarge of the lithium battery are avoided, the service life of the lithium battery is prolonged, and the SOC of the energy storage element is stabilized in a reasonable interval.