96 results about "Capacitive energy storage" patented technology

The invention relates to the technical field of power system control, and discloses a photovoltaic energy storage primary frequency modulation cooperative control system based on output prediction and SOC balance, which comprises a photovoltaic array unit, a photovoltaic inverter, a sodium ion super capacitor energy storage unit, a bidirectional DC / DC converter and a cooperative controller. The cooperative controller is configured to identify an output trend by using photovoltaic power prediction data, and dynamically adjust an energy storage SOC reference anchor value; a source storage virtual impedance model considering the real-time efficiency characteristic of the sodium ion super capacitor is constructed, and the primary frequency modulation power demand is dynamically allocated. When the state of the energy storage unit deteriorates, the power compensation amount is calculated through photovoltaic load shedding sliding mode offset control, and the closed-loop target of the photovoltaic inverter is corrected to share the frequency modulation task. And after the frequency modulation is finished, controlling the photovoltaic power to recover by adopting an asymmetric step length. The method solves the problems that the energy storage standby is not matched and the response capability is reduced under the extreme working condition, and improves the frequency modulation stability of the system.

The method is applied to the fields of train regenerative braking energy utilization, stray current and rail potential treatment and the like in electrified rail transit, especially urban rail transit. The invention provides a direct-current traction power supply system capable of reducing the energy storage capacity of a super capacitor of urban rail transit, which is combined with a super capacitor energy storage device of the urban rail transit and supplies power to a power electronic device for treating stray current and rail potential by utilizing regenerative braking energy of a train. The super-capacitor energy storage device has the following advantages that on one hand, the energy storage capacity of the super-capacitor bank in the super-capacitor energy storage device between train braking and traction can be reduced, and the utilization efficiency of regenerative braking energy stored by the super-capacitor bank is improved; on the other hand, the problems of stray current, rail potential and the like in the system can be solved from the source, and the power supply distance of a traction substation is remarkably increased. Therefore, the direct-current traction power supply system is of great significance to green and safe operation of urban rail transit.

The invention provides a multi-stage soft start charging circuit and device for a high-capacity capacitor and electronic equipment. The circuit comprises a multi-stage timing sub-circuit, a multi-stage soft start circuit and the high-capacity capacitor, the multi-stage timing sub-circuit comprises n timing sub-circuits which are connected in parallel; the multi-stage soft driver circuit comprises n soft driver circuits which are connected in series; a first port of the ith timing sub-circuit is connected with a positive electrode of a power supply, a second port of the ith timing sub-circuit is connected with a ground wire, and a third port of the ith timing sub-circuit is connected with a first port of the ith soft driver circuit; one end of the high-capacity capacitor is connected with the positive electrode of the power supply, the other end of the high-capacity capacitor is connected with the second port of the nth soft driver circuit, the third port of the jth soft driver circuit is connected with the second port of the (j-1) th soft driver circuit, and the third port of the first soft driver circuit is connected with a ground wire. The circuit provided by the invention can be used for quickly charging the high-capacity capacitor on the premise of limiting the impact current and not losing the energy storage and filtering effects of the capacitor.

The invention discloses a low-power-consumption control system and method based on multi-mode micro-energy collection and intelligent energy management. The low-power-consumption control system comprises a plurality of independent energy input interface circuits, a super-capacitor energy storage module and an energy processing and battery charging management module. Each input interface circuit adaptively boosts or rectifies specific energy sources (such as solar energy, wind energy, vibration energy, heat energy and the like), and charges a super capacitor after being isolated by a diode. After the energy storage voltage of the super capacitor reaches a threshold value, the processing circuit driven by the BUCK-BOOST chip converts the energy storage voltage into stable voltage and outputs the stable voltage to the battery charging chip, so that efficient energy storage is realized. The system is monitored by a low-power-consumption single-chip microcomputer, energy consumption is reduced through a sleep-wake-up mechanism, and meanwhile the system can be expanded to be a control core of a sensor or a wireless module.

The invention relates to the field of application of dielectric energy storage materials, and discloses application of a polyimide film in a dielectric energy storage material. The polyimide is prepared by copolymerizing bis [4-(4-aminophenoxy) phenyl] sulfone and 4, 4 '-(hexafluoroisopropene) diphthalic anhydride, or copolymerizing bis [4-(3-aminophenoxy) phenyl] sulfone and 4, 4'-(hexafluoroisopropene) diphthalic anhydride, or copolymerizing bis [4-(3-aminophenoxy) phenyl] sulfone and 4, 4 '-(hexafluoroisopropene) diphthalic anhydride. Ether bonds are introduced to two sides of diphenyl sulfone to destroy a continuous conjugated structure between an imide ring and diphenyl sulfone, hexafluoroisopropylene with high electronegativity is introduced into a dianhydride unit, and high-temperature insulativity is improved through interaction of the three. When the prepared polyimide film is used as a dielectric medium energy storage material, the high-temperature insulation property is improved while the heat resistance and the relatively high dielectric constant are maintained, so that the energy storage property of a capacitor is improved. The discharge energy density of 7.25 J / cm < 3 > and 4.79 J / cm < 3 > is realized at 200 DEG C and 250 DEG C respectively, and the efficiency is greater than 90%.

The utility model relates to super capacitor energy storage technical field, concretely relates to a kind of super capacitor immersion type exhaust device, its technical key points are at: including capacitor device and container, the capacitor device includes box, the box is filled with immersion liquid, the top of the side edge of the vertical direction one side of the box is provided with exhaust device, the exhaust device includes overflow pipe, elbow and exhaust pipe, the exhaust pipe is directed upwards and is provided, exhaust valve is connected on the exhaust pipe, the exhaust valve is located the outside of the container. By exhaust valve setting in the outside of container, when one or more super capacity monomer in one of capacitor device inside appears thermal runaway phenomenon, the harmful gas or substance generated, with the whole exhaust pipe line is discharged to the outside of container, improve the safety of whole product, simultaneously with discharge immersion liquid, so that container inside does not need to clean the immersion liquid and monomer runaway harmful substance discharged, and then improve the maintainability of whole product.

The invention relates to an energy balance control device and method for an energy storage system, and the device comprises the steps: collecting the electric data of a total positive electrode and a total negative electrode of a capacitive energy storage circuit in real time through a collection device, and the electric data of a plurality of nodes on the capacitive energy storage circuit; the electric energy adjusting device is arranged to judge the working state of the capacitive energy storage circuit according to the presentation rule of the electricity data acquired by the acquisition device, and the electric energy of the operation state of the capacitive energy storage circuit is balanced when the capacitive energy storage circuit enters the operation state. Static electric energy balancing is carried out on the capacitive energy storage circuit when the capacitive energy storage circuit enters a static state, so that electric energy balancing is carried out according to difference of working states of the capacitive energy storage circuit, and the method is suitable for a wide-voltage-range energy storage system.

The invention relates to a capacitive energy store (108) for a piece of embedded equipment (100), comprising: a succession of storage capacitors (3, 4, 5, 6) that are connected in parallel and that each have a capacitance less than 25,000 μF; a buffer capacitor (2) of lower capacitance; a switch (20) for connecting / disconnecting the buffer capacitor to / from a power supply (102) of the equipment; switches (30, 40, 50, 60) for connecting / disconnecting each storage capacitor to / from the preceding capacitor; a sequencer (8), configured to measure the voltage across the terminals of the buffer capacitor and of the storage capacitors and, when the equipment is switched on, control the various switches according to an initial charging process comprising a succession of cycles of charging / discharging the buffer capacitor (2) into the succession of storage capacitors.

The invention discloses an optical storage hybrid parallel power supply system coordination control method based on a transformer substation, electronic equipment and a medium, and the method comprises the steps: collecting historical power supply data and a current operation state of a power grid system comprehensive model, and constructing an energy storage prediction optimization model, the micro-grid system comprehensive model comprises a photovoltaic system dynamic model, a super-capacitor energy storage system dynamic model and a storage battery energy storage system dynamic model; a minimum cost function based on physical constraints is constructed based on the energy storage prediction optimization model, and optimal control input is obtained; generating a power adjustment instruction based on the optimal control input; and based on the power regulation instruction, controlling the super-capacitor energy storage system to charge and discharge, and controlling the storage battery energy storage system to output power. According to the method, the control signal under the physical constraint is optimized by minimizing the cost function, so that the deviation between the actual output and the target output can be reduced, the dynamic response speed and the control precision of the system are improved, and the operation reliability of the system is ensured.

The utility model discloses a passive PFC (Power Factor Correction) valley-fill drive circuit and a power supply device, which comprise a rectifier module, an energy storage inductor L, an energy storage capacitor C201, an energy storage capacitor C202, a diode D201, a diode D203 and an adjusting assembly, the other end of the energy storage inductor L is connected with one end of the energy storage capacitor C210 and the negative electrode of the diode D203 and forms the positive electrode of the output end of the passive PFC valley-fill drive circuit, and the other end of the energy storage capacitor C201 is connected with one end of the adjusting assembly and the negative electrode of the diode D201. The positive electrode of the diode D203 is connected with the other end of the adjusting assembly and one end of the energy storage capacitor C202, the positive electrode of the diode D201 is connected with the other end of the energy storage capacitor C202 and forms the negative electrode of the output end of the passive PFC valley-fill type driving circuit, the adjusting assembly is used for setting the charging time of the energy storage capacitor C202, and the charging time of the energy storage capacitor C202 is set. The power factor is improved and the harmonic current is reduced with low cost, and the use requirements of users are met.

The application relates to a hybrid AC / DC microgrid based on a reconfigurable modular multilevel converter and an operation method and a storage medium thereof. The microgrid comprises a modular multilevel converter (MMC), the MMC comprises a plurality of phase legs, each phase leg comprises an upper arm and a lower arm, each arm is connected with a plurality of sub-modules in series, each sub-module comprises a semiconductor switching device, a capacitor energy storage unit and a controllable bypass switch structure; the MMC is connected with an AC bus and a DC bus respectively to realize bidirectional power conversion. The system comprises a plurality of feeder branches which are connected with the bus through power switching devices. Distributed edge controllers are arranged at the sub-modules or feeder interfaces to collect voltage and current parameters and output isolation or bypass signals in an abnormal condition; meanwhile, hierarchical reconfiguration controllers are arranged to perform structure reconfiguration and power path redistribution. The application realizes fault rapid isolation and reconfiguration cooperation through hierarchical control, maintains the voltage stability of the key load bus, and realizes the effect of improving the system reliability and power supply continuity.

The present application relates to the field of capacitor energy storage, and relates to a method for suppressing impact current of high-power pulse load based on super capacitor energy storage.When a trigger instruction is received by a system load driver, the target power value of the trigger instruction is analyzed to determine the compensation target current, and the advance compensation amount at each time point is determined.When the pulse is started, the voltage deviation between the bus voltage and the rated bus voltage is obtained in real time, the feedback current component at each time point is analyzed, the superimposed compensation component at the corresponding time point is determined in combination with the compensation target current, the upper limit constraint of the superimposed compensation component is set based on the bus voltage change rate and the voltage deviation, the capacitor discharge current given amount is determined based on the upper limit constraint, when the capacitor discharge current decreases to zero, the net difference between the discharge energy and the recoverable energy of the super capacitor within the adjacent pulse period is calculated based on the pulse period and the duty cycle, the charging current given value during the pulse interval is determined, and the impact current is finely suppressed.

The invention relates to a liquid electrode suitable for amplification of a microbial electrolysis cell and a carbon sequestration device of the liquid electrode, and belongs to the field of microbial electrochemical application. The liquid electrode is composed of a solid electrode and humic acid dissolved in a reaction system. As an electron shuttle and a pseudocapacitance energy storage medium, humic acid can efficiently receive electrons from a solid-state electrode and uniformly transmit the electrons to microorganisms in a dissolved state at a long distance in the space of the reactor; therefore, the scale effect problem that the electron transfer efficiency is reduced due to the fact that the size of the microbial electrolysis cell is increased, the electrode distance is increased and the electrode area per unit volume is reduced is fundamentally solved. The carbon sequestration device constructed on the basis of the liquid electrode integrates an autogenous dynamic membrane component taking a stainless steel mesh as a base material and a reverse osmosis product recovery system. The dynamic membrane can effectively intercept humic acid and microorganisms, selectively discharge small molecular products and relieve product inhibition; and the reverse osmosis system realizes high-efficiency recovery and process closed loop of products, and achieves zero emission.

The invention discloses a photovoltaic power station super capacitor energy storage configuration method and system facing a receiving end weak network. According to the method, a hybrid super capacitor model containing a power grid forming type converter and a power grid following type converter is constructed, and the supporting capacity is measured through the generalized short circuit ratio, the small interference margin, the transient voltage margin, the frequency lowest point margin, the frequency change rate improvement and other indexes; establishing a dynamic energy coupling constraint based on multi-fault time domain integration; two-stage five-dimensional target NSGA-II optimization is adopted, improved AHP, CRITIC and relative entropy TOPSIS are combined for scheme decision making, and capacity configuration meeting the voltage and frequency dual support requirement is output. According to the invention, rapid voltage recovery and frequency suppression of the photovoltaic power station in the weak network scene of the receiving end are realized, and the investment cost and the energy safety margin are both considered.

The application is applied to the fields of train regenerative braking energy utilization, stray current and track potential treatment in electrified rail transit, especially urban rail transit. The application provides a DC traction power supply system for reducing the super capacitor energy storage capacity of urban rail transit, which is combined with the super capacitor energy storage device of urban rail transit, and uses the train regenerative braking energy to supply power to the power electronic device for treating stray current and track potential. The application has the following advantages: on the one hand, the super capacitor group in the super capacitor energy storage device can reduce the energy storage capacity between train braking and traction, and improve the regenerative braking energy utilization efficiency of the super capacitor group; on the other hand, the problem of stray current and track potential in the system can be solved from the source, and the power supply distance of the traction substation can be significantly improved. Therefore, the DC traction power supply system has important significance for green and safe operation of urban rail transit.

The invention relates to the technical field of photovoltaic tracking support control, and particularly discloses a safety protection method based on a dual-chip photovoltaic tracking support control system, which comprises the following mechanisms: a multi-motor PID synchronization algorithm optimization mechanism including an amplitude threshold PID historical data clearing strategy; starting a self-checking mechanism, including multi-component detection and fault grading processing; the dynamic detection mechanism adopts a multi-thread parallel detection technology; according to the delayed power failure mechanism, continuous power supply after power failure is achieved through a capacitor energy storage array and a DC-DC converter; a data comparison monitoring mechanism is operated, and motor current and Hall data are compared in real time for fault diagnosis; according to the motor position calibration mechanism, Hall data and PID historical data are reset at a physical limit position; according to the dual-threshold mechanism, a main chip and an auxiliary chip are respectively provided with a Hall difference threshold, and grading fault response is achieved. The comprehensive scheme of efficient synchronous control and multi-level safety protection is integrated, and stable, reliable and safe operation of the photovoltaic tracking support is ensured.

The invention discloses a modular high-capacity test power supply system, method and equipment and a storage medium, and relates to the technical field of test power supplies, a modular super-capacitor energy storage module adopts high-density direct-current energy storage, the size is small, more energy is stored, the capacity can be flexibly expanded through the modular design, and the limitation of the traditional energy storage capacity is broken through; meanwhile, the input and charging module can efficiently convert low-voltage commercial power into direct current and continuously charge the energy storage module, and the power conversion and filtering module is responsible for converting the direct current into alternating current in a high-quality mode and filtering harmonic waves, so that stable and high-quality output is guaranteed, and the large-capacity test requirement is met; in addition, the super capacitor is charged and discharged based on electric field force, the speed is extremely high, power can be rapidly adjusted, and the problem of slow response of traditional energy storage is solved. In addition, the control module monitors and coordinates all the modules in real time, quickly receives feedback, sends instructions according to strategies and requirements, and quickly coordinates all the modules when the power changes, so that quick response and stable operation of the system are realized, and smooth development of the test is ensured.

An input rectification unit, a current detection unit, a follow current unit, an inductance energy storage unit and a capacitance energy storage unit are shared in an original PFC circuit, the current can be normally suppressed under the conditions of a wide temperature range and a wide input voltage, a high-frequency switch is adopted to control current-limiting charging, and the short-circuit-resistant surge current suppression circuit with the adjustable current can be used for suppressing the short-circuit-resistant surge current. According to the utility model, the structure is simple, the influence of the capacity of a rear-end capacitor is small, the function of resisting overload and short circuit of an output end and the function of flexibly setting and modifying a peak current limiting point are realized, and the requirements of the 16.7.5 impact current in the RTCA / DO-160G standard are met when the power is applied at different powers.

The application discloses a super capacitor energy storage boost control electric energy meter high-power load switch circuit and a control method, relates to the technical field of power systems, and comprises a charging circuit, a boost circuit and a driving circuit.The charging circuit comprises a charging branch electrically connected with a voltage stabilizing power supply and a super capacitor electrically connected with the charging branch.The boost circuit is electrically connected with an output end of the charging circuit and comprises a power supply branch, a boost chip electrically connected with the power supply branch and a voltage division branch.The driving circuit is electrically connected with an output end of the boost circuit and comprises a driving chip and a load switch electrically connected with the driving chip.The method provided by the application reduces the occupied area of a circuit board, saves space, fully utilizes the existing super capacitor, reduces the cost, realizes high-ratio discharge of the super capacitor, prolongs the service life and improves the reliability.

The invention discloses a lithium-free high-voltage direct-output sodium ion capacitor energy storage device and a preparation method thereof, and belongs to the technical field of electrochemical energy storage devices. The energy storage device adopts a completely lithium-free system, a 50-380-layer internal series connection structure is formed through alternate lamination of double-side heteropole composite electrodes and diaphragms, direct output of high voltage of 1200 V or above is directly achieved, and direct power grid direct hanging can be achieved. The preparation method perfectly reuses the whole set of core processes of S01 to S03, and does not need to add new equipment. The energy density of the whole pack can reach 35-40 Wh / kg, the cost of raw materials is reduced by 40% or above compared with that of a lithium ion capacitor, dependence on lithium resources is thoroughly eliminated, the cycle life is longer than or equal to 120 thousand times, and the requirements of scenes such as power grid area energy storage, new energy grid connection and industrial standby power supplies are perfectly met.

A magnetic property detection device, using magnetic field generating coils (210, 210') to increase the speed of change of a generated magnetic field, and using capacitor energy storage power supply devices (220, 220') to supply a large instantaneous current to the magnetic field generating coils (210, 210'), achieving magnetic property detection with high-speed change and high magnetic field intensity. Further provided is a magnetic property detection method, comprising: at least when capacitor energy storage power supply devices (220, 220') discharge to magnetic field generating coils (210, 210'), detecting magnetic property information of a preset position of an object to be measured (400), so that the difficulty of synchronous detection of magnetic fields and magnetic signals in rapidly changing magnetic field environments can be solved, matching of magnetic properties and magnetic field states can be facilitated, and thus the magnetic properties of the object to be measured (400) can be analyzed.

The embodiment of the specification discloses a self-adaptive power supply device and a power supply method, which are applied to a smart meter connected to a power grid, wherein the self-adaptive power supply device comprises a solar power generation unit, a super capacitor energy storage unit, a power supply switching unit, and a power supply control module electrically connected with the units and the smart meter respectively; the power supply control module collects power grid voltage, ambient light intensity, state of charge information of the super capacitor energy storage unit and power consumption data of the smart meter in real time, and generates control instructions for regulating and controlling the power generation power of the solar power generation unit, the charging and discharging power of the super capacitor energy storage unit and the power supply mode of the power supply switching unit based on the power grid voltage, the ambient light intensity, the state of charge information and the power consumption data. The technical problem that the energy supply scheme of the smart meter is out of touch with the actual operation condition of the meter and cannot dynamically adapt and cooperate is solved.

The invention discloses a high-power capacitor energy storage type multi-point gantry row welding machine, which belongs to the technical field of welding and comprises a capacitor cabinet, a plurality of welding stations are arranged on the peripheral side of the capacitor cabinet in a surrounding manner, and welding machines are arranged in the welding stations; the welding device further comprises a connecting frame which extends to the bottoms of one sides of the multiple welding stations, and the peripheral areas of the welding stations are supported through the connecting frame. According to the multi-station synchronous welding device, through the designed supporting mechanism, the uniform supporting effect can be achieved when a single workpiece is subjected to multi-station synchronous welding through multi-angle supporting at the top of the connecting frame, through arrangement of a capacitor cabinet, the instantaneous welding current can be improved, the requirement for the welding hot melting temperature of different workpieces is met, and the welding efficiency is improved. And the welding supporting stability of the multi-station part is improved through multi-point supporting of the supporting mechanism, and welding deviation is reduced.

The application discloses a kind of capacitive energy storage intelligent management methods, it is related to capacitive energy storage management technical field, including the following steps, the charge-discharge process of vehicle-mounted capacitor is divided into multiple dynamic charging intervals, management strategy is formulated for each dynamic charging interval by iterative calculation, the optimal threshold sequence of capacitor charge-discharge corresponding to each dynamic charging interval is obtained, the dynamic charging interval where it is located is identified during the driving process of electric vehicle, and according to capacitor charge-discharge optimal threshold sequence, the charge-discharge behavior of vehicle-mounted capacitor is dynamically regulated and managed, by dividing dynamic charging interval, in combination with capacitor health state, battery cycle number and environmental temperature correction interval boundary, with the aid of energy recovery efficiency data in braking process optimization management strategy, to solve optimal charge-discharge threshold by immune genetic algorithm, motor inefficient interval preferentially discharges, cooperates battery state of charge closed loop to prevent battery from overcharge or overdischarge phenomenon, synergistic optimization performance, improve power system stability and economy.

This invention discloses a driving circuit for a microchip laser, comprising: an analog switch circuit controlling the opening and closing of a constant current discharge circuit according to an externally input control signal; the constant current discharge circuit, after being controlled by the analog switch circuit to open, outputting a discharge signal to a voltage converter circuit and outputting electrical energy input from a capacitor energy storage circuit to the outside; the voltage converter circuit increasing the voltage input range, performing voltage conversion on the discharge signal, and outputting the voltage-converted discharge signal to an error amplifier charging current-limiting circuit; the error amplifier charging current-limiting circuit detecting the magnitude of the internal current of the driving circuit and limiting the current, and outputting the current-limited discharge signal to the capacitor energy storage circuit; and the capacitor energy storage circuit storing electrical energy and outputting electrical energy to the constant current discharge circuit according to the current-limited discharge signal. This invention features high charging efficiency, a wide input voltage range, low equivalent resistance of the energy storage capacitor, small size, good adaptability to high and low temperature environments, and no significant reduction in capacity at low temperatures.

The application relates to the technical field of deep underground engineering monitoring, and discloses a deep engineering surrounding rock temperature passive wireless monitoring device and method, which aims to solve the problem that the existing method is difficult to realize maintenance-free and continuous and reliable monitoring. The device comprises a monitoring terminal and an inspection vehicle. The monitoring terminal generates electricity by using the temperature difference between the surrounding rock and the environment through a thermoelectric module, stores energy by using a lithium titanate super capacitor, realizes passive self-power supply, is fixed to a pre-buried clamping groove through a buckle type mounting structure, realizes lossless and rapid installation, and adopts a multilayer protective shell to resist high temperature and high humidity. The inspection vehicle is integrated with wireless charging and data receiving functions, can perform emergency charging for the monitoring terminal in the moving process, and receives the temperature data sent by the monitoring terminal, wherein the temperature data is bound with a unique point position number. The application realizes long-term stable maintenance-free monitoring of the surrounding rock temperature, and is particularly suitable for deep extreme environments.

The invention relates to a multi-machine parallel seamless switching diesel generating set system which comprises a common bus, a direct current bus, a bidirectional DC-AC converter, a power generation unit group and a main controller. The power generation unit at least comprises two diesel generators connected in parallel and a super capacitor energy storage unit, the diesel generators are connected with the direct current bus through a bidirectional AC-DC converter, and a super capacitor is directly connected to the direct current bus in parallel. The system is coordinated and controlled by the main controller, and the power is instantaneously compensated or absorbed when the load is suddenly changed by utilizing the quick response characteristic of the super capacitor energy storage unit, so that the stability of a direct-current bus is maintained; instantaneous power buffering is provided when a unit is started, stopped, connected to a grid or breaks down, and smooth power transition is achieved. Seamless power switching and parallel operation among a plurality of diesel generating sets are realized, the dynamic stability of the system is effectively improved, the power supply quality is effectively improved, and the service life of equipment is effectively prolonged.

The application provides a comprehensive control method and system for a capacitive energy storage operation vehicle, and the operation vehicle belongs to the technical field of vehicle control, and the method comprises the following steps: in the power shortage wakeup stage, trickle pre-charging is performed on the super capacitor group by the auxiliary winding arranged in the generator; in the interval scheduling stage, the engine is controlled to start and stop according to the terminal voltage; in the charging control stage, the generator is controlled to charge at a constant target power according to the real-time torque of the generator shaft; in the bidirectional commutation stage, the generator is controlled to charge through the forward conduction path of the unidirectional conduction device; when the main operation is performed, the discharge path is connected through the reverse full-control power switching device; and in the single management stage, the isolation control module corresponding to the faulty single is controlled to perform the operation, so as to bypass and cut off the corresponding single on the electric circuit. The application realizes the comprehensive control of the power shortage wakeup, interval scheduling, constant power energy compensation, arcless bidirectional commutation and bottom hardware level fault tolerance.

The embodiment of the invention relates to a photovoltaic equipment control method and device, photovoltaic equipment and a storage medium, and the method comprises the steps: determining a power difference value between the photovoltaic output power of the photovoltaic equipment and the load power of the photovoltaic equipment when the photovoltaic equipment is determined to be in a reverse power state; determining the charging current of a capacitive energy storage module of the photovoltaic equipment according to the power difference value; and charging the capacitive energy storage module according to the charging current and the charge state of the capacitive energy storage module, and adjusting the load power according to the charge state. Therefore, the charging current can be determined based on the power difference value, and energy storage charging and load power can be synchronously adjusted in combination with the charge state of the capacitive energy storage module, so that the system can realize rapid and accurate energy absorption and power distribution when reverse power occurs, reverse power delivery is effectively avoided, and the overall regulation and control efficiency and stability are improved.

The invention provides flywheel energy storage equipment based on electromagnetic bearing dynamic energy recovery, which relates to the technical field of flywheels and comprises an excitation winding, a converter, a recovery winding, a flywheel rotor, a capacitance energy storage unit, an intelligent control unit and a rectifier bridge, the recovery winding and the excitation winding form electromagnetic coupling; the recycling winding is electrically connected with the capacitor energy storage unit through the rectifier bridge; the capacitive energy storage unit is electrically connected with the intelligent control unit through the converter; the flywheel rotor, the excitation winding and the recovery winding are electrically connected with the intelligent control unit; the rectifier bridge converts the induced current from alternating current into direct current; the capacitance energy storage unit stores the converted direct current and recovers energy; and the converter converts the unstable current output by the capacitive energy storage unit into stable current, and supplies power to the intelligent control unit through the stable current.