A portable energy storage device based on a bidirectional inverter

Abstract

The present invention discloses a portable energy storage device based on a bidirectional inverter, which relates to the technical field of energy storage control. It includes an AC power supply module for providing and outputting alternating current; an intelligent control module for signal reception and module control; an energy storage control module for balancing energy storage and discharge control; an inverter module for rectification and inversion control; a charge and discharge control module for voltage regulation through an isolated unidirectional power adjustment circuit and boosting processing through a boosting circuit; a start-up regulation module for soft start regulation control; and an energy control module for providing direct current electrical energy. The portable energy storage device based on the bidirectional inverter of the present invention completes the balanced energy storage and discharge control of the energy storage control module by the intelligent control module, the inversion regulation and rectification regulation of electrical energy by the inverter module, the adjustment control between direct currents by the charge and discharge control module, and soft start control by the start-up regulation module, and improves the endurance of the device by the energy control module.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage control, and particularly to a portable energy storage device based on a bidirectional inverter. Background Art

[0002] With the accelerating pace of social development, people have higher and higher requirements for the stable and efficient utilization of energy storage devices. In order to improve the use efficiency and scope of energy storage devices, as well as the portability of energy storage devices, existing energy storage devices use a single-chip microcomputer to complete the control of the inverter circuit, complete the AC-DC conversion and DC-AC conversion of electric energy. To ensure the bidirectional control of the inverter, a relatively large number of switching tubes are required for control, resulting in a large volume of the energy storage device. And in order for the energy storage device to adapt to the change of the DC input voltage, a voltage regulating circuit is added between the DC power supply and the inverter circuit, and there are too many auxiliary devices, resulting in a reduction in the overall efficiency of the energy storage device. Therefore, it needs to be improved. Summary of the Invention

[0003] Embodiments of the present invention provide a portable energy storage device based on a bidirectional inverter to solve the problems raised in the above background art.

[0004] According to the embodiments of the present invention, a portable energy storage device based on a bidirectional inverter is provided. The portable energy storage device based on a bidirectional inverter includes: an AC power supply module, an intelligent control module, an energy storage control module, a charge and discharge control module, a start-up regulation module, an inverter module, and an energy control module;

[0005] The AC power supply module is used to provide AC electric energy and output the electric energy output by the inverter module;

[0006] The intelligent control module is used to detect the electric energy situation of the module, output a first pulse signal and control the operation of the inverter module, output a discharge signal and a charge signal and control the operation of the charge and discharge control module, output a start signal and control the operation of the start-up regulation module, output a voltage regulation signal and control the operation of the energy storage control module, and output a second pulse signal and control the operation of the energy control module;

[0007] The energy storage control module is connected to the intelligent control module and is used to receive the voltage regulation signal and evenly regulate the electric energy of the energy storage circuit;

[0008] The inverter module is connected to the AC power supply module and the intelligent control module, and is used to control the operation of the inverter circuit through the first pulse signal, rectify the AC electric energy output by the AC power supply module through the inverter circuit, and convert the DC electric energy output by the charge and discharge control module into AC electric energy and transmit it to the AC power supply module;

[0009] The charge and discharge control module is connected to the energy storage control module, the inverter module and the intelligent control module, and is configured to receive the charging signal and perform DC-DC regulation processing through the isolated unidirectional power regulation circuit, and is configured to receive the discharging signal and perform boosting processing through the boosting circuit;

[0010] The start-up regulation module is connected to the inverter module and the intelligent control module, and is configured to perform soft start regulation control on the electric energy rectified and output by the inverter module and the DC electric energy input to the inverter module;

[0011] The energy control module is connected to the energy storage control module and the intelligent control module, and is configured to receive the second pulse signal and regulate the electric energy output by the new energy circuit, and is configured to provide DC electric energy for the energy storage control module.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: The portable energy storage device based on the bidirectional inverter of the present invention completes the balanced energy storage and discharge control of the energy storage control module by the intelligent control module. At the same time, the inverter module completes the DC-AC inversion regulation of the electric energy and the rectification regulation control of the AC power module. At the same time, the charge and discharge control module uses fewer switching tubes, reduces the volume of the energy storage control module, and effectively controls the DC electric energy input to the energy storage control module and the DC electric energy output by the energy storage control module, so as to adapt to the DC electric energy change between modules, improve the efficiency of electric energy conversion, and the start-up regulation module suppresses the reverse recovery current of DC regulation, reduces the switching loss of the inverter module. At the same time, the energy control module can improve the endurance of the energy storage control module. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is a schematic block diagram of the principle of the portable energy storage device based on the bidirectional inverter provided by the embodiment of the present invention.

[0015] Figure 2 It is a circuit diagram of the portable energy storage device based on the bidirectional inverter provided by the embodiment of the present invention.

[0016] Figure 3 It is a circuit diagram of the energy storage control module provided by the embodiment of the present invention.

[0017] Figure 4 It is a circuit diagram of the energy control module provided by the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0019] Example 1, please refer to Figure 1 , a portable energy storage device based on a bidirectional inverter includes: an AC power module 1, an intelligent control module 2, an energy storage control module 3, a charge and discharge control module 4, a start-up regulation module 5, an inverter module 6, and an energy control module 7;

[0020] Specifically, the AC power module 1 is used to provide AC electric energy and output the electric energy output by the inverter module 6;

[0021] The intelligent control module 2 is used to detect the electric energy situation of the module, output a first pulse signal and control the operation of the inverter module 6, output a discharge signal and a charge signal and control the operation of the charge and discharge control module 4, output a start signal and control the operation of the start-up regulation module 5, output a voltage regulation signal and control the operation of the energy storage control module 3, and output a second pulse signal and control the operation of the energy control module 7;

[0022] The energy storage control module 3 is connected to the intelligent control module 2 and is used to receive the voltage regulation signal and evenly regulate the electric energy of the energy storage circuit;

[0023] The inverter module 6 is connected to the AC power module 1 and the intelligent control module 2 and is used to control the operation of the inverter circuit through the first pulse signal, rectify the AC electric energy output by the AC power module 1 through the inverter circuit, and convert the DC electric energy output by the charge and discharge control module 4 into AC electric energy and transmit it to the AC power module 1 through the inverter circuit;

[0024] The charge and discharge control module 4 is connected to the energy storage control module 3, the inverter module 6 and the intelligent control module 2, and is used to receive the charge signal and perform DC-DC regulation processing through an isolated unidirectional electric energy regulation circuit, and receive the discharge signal and perform boost processing through a boost circuit;

[0025] The start-up regulation module 5 is connected to the inverter module 6 and the intelligent control module 2 and is used to perform soft start regulation control on the electric energy rectified and output by the inverter module 6 and the DC electric energy input to the inverter module 6;

[0026] The energy control module 7, connected to the energy storage control module 3 and the intelligent control module 2, is configured to receive the second pulse signal and regulate the electric energy output by the new energy circuit, and is used to provide DC electric energy for the energy storage control module 3.

[0027] In a specific embodiment, the above-mentioned AC power supply module 1 can use an AC power supply device to provide AC electric energy for the module, or can use an AC device to receive AC electric energy, which will not be elaborated here; the above-mentioned intelligent control module 2 can adopt a drive circuit, a micro-control circuit and a voltage and current detection circuit. Among them, the drive circuit adopts a power transistor drive circuit to provide the drive ability of the output signal of the micro-control circuit so as to drive the operation of the power transistor. The micro-control circuit can be selected, but is not limited to, microcontrollers such as single-chip microcomputers and DSPs, which integrate many components such as arithmetic units, controllers, memories, and input / output devices to implement functions such as signal processing, data storage, module control, and timing control. The voltage and current sampling circuit is used to detect the voltage and current parameters of the module and provide detection data for the micro-control circuit, which will not be elaborated here; the above-mentioned energy storage control module 3 can adopt a balancing regulation circuit and an energy storage circuit. The balancing regulation circuit balances and regulates the electric energy of the energy storage circuit, and the energy storage circuit stores and discharges electric energy; the above-mentioned charge and discharge control module 4 can adopt an isolated unidirectional electric energy regulation circuit and a boost circuit. The isolated unidirectional electric energy regulation circuit isolates and regulates the transmission of the DC electric energy provided by the inverter module 6, and the boost circuit boosts the electric energy provided by the energy storage control module 3; the above-mentioned start-up regulation module 5 can adopt a soft start circuit to suppress the reverse recovery current of the DC regulation and reduce the switching loss of the inverter module 6; the above-mentioned inverter module 6 can adopt an inverter circuit, which has the characteristic of bidirectional electric energy transmission, which will not be elaborated here; the above-mentioned energy control module 7 can adopt a voltage regulation circuit and a new energy circuit to regulate the electric energy provided by the new energy circuit through the voltage regulation circuit and supply power to the energy storage control module 3.

[0028] Embodiment 2, on the basis of Embodiment 1, please refer to Figure 2 、 Figure 3 and Figure 4 ,The charge and discharge control module 4 includes a first capacitor C1, a first diode D1, a first power transistor Q1, a second power transistor Q2, and a first transformer T1; the intelligent control module 2 includes a first controller U1;

[0029] Specifically, the first end of the first capacitor C1 and the anode of the first diode D1 are connected to the energy storage control module 3. The cathode of the first diode D1 is connected to the first end of the primary side of the first transformer T1 and the collector of the second power transistor Q2. The second end of the first capacitor C1, the emitter of the second power transistor Q2, and the emitter of the first power transistor Q1 are all grounded. The gate of the first power transistor Q1 and the gate of the second power transistor Q2 are respectively connected to the first IO terminal and the second IO terminal of the first controller U1. The second end of the primary side of the first transformer T1 is connected to the collector of the first power transistor Q1 and the startup regulation module 5.

[0030] In a specific embodiment, the above-mentioned first power transistor Q1, the primary side of the first transformer T1, and the first diode D1 form a boost circuit, which is controlled by the first controller U1 to achieve boost regulation of the electric energy output by the energy storage control module 3. Among them, the first power transistor Q1 can be an IGBT; the second power transistor Q2 can be an IGBT for freewheeling control of the primary side of the first transformer T1; the first controller U1 can be a DSP chip with IGBT drivers and MOSFET drivers. The DSP chip can be, but is not limited to, the TMS320F2812 chip.

[0031] Further, the charge and discharge control module 4 further includes a second diode D2 and a fourth power transistor Q4;

[0032] Specifically, the anode of the second diode D2 is connected to the first end of the secondary side of the first transformer T1. The emitter of the fourth power transistor Q4 is connected to the second end of the secondary side of the first transformer T1. The collector of the fourth power transistor Q4 is connected to the second end of the first capacitor C1. The cathode of the second diode D2 is connected to the first end of the first capacitor C1. The gate of the fourth power transistor Q4 is connected to the fourth IO terminal of the first controller U1.

[0033] In a specific embodiment, the above-mentioned second diode D2, the fourth power transistor Q4, in cooperation with the first transformer T1 and the second power transistor Q2, can form an isolated unidirectional power regulation circuit. The first transformer T1 is used for isolated transmission of electric energy, and the fourth power transistor Q4 and the second power transistor Q2 are used for DC-DC regulation control; the above-mentioned power transistors can be IGBTs.

[0034] Further, the startup regulation module 5 includes a third power transistor Q3 and a second capacitor C2;

[0035] Specifically, the emitter of the third power transistor Q3 is connected to the second end of the primary side of the first transformer T1. The collector of the third power transistor Q3 is connected to the second end of the first capacitor C1 through the second capacitor C2. The gate of the third power transistor Q3 is connected to the third IO terminal of the first controller U1.

[0036] In a specific embodiment, the above-mentioned third power transistor Q3 and the second capacitor C2 cooperate with the primary side of the first transformer T1 to form a soft-start circuit. During startup, by adjusting the electrical energy of the input inverter module 6 and the electrical energy of the input charge-discharge control module 4, the reverse recovery current of the DC regulation is suppressed, and the switching loss of the inverter module 6 is reduced.

[0037] Further, the inverter module 6 includes a fifth power transistor Q5, a sixth power transistor Q6, a seventh power transistor Q7, and an eighth power transistor Q8; the AC power supply module 1 includes an AC device.

[0038] Specifically, the collector of the fifth power transistor Q5 is connected to the collector of the seventh power transistor Q7 and the emitter of the third power transistor Q3. The emitter of the fifth power transistor Q5 is connected to the first end of the AC device and the collector of the sixth power transistor Q6. The emitter of the seventh power transistor Q7 is connected to the second end of the AC device and the collector of the eighth power transistor Q8. The emitter of the sixth power transistor Q6 is connected to the emitter of the eighth power transistor Q8 and the second end of the first capacitor C1. The gates of the fifth power transistor Q5, the sixth power transistor Q6, the seventh power transistor Q7, and the eighth power transistor Q8 are respectively connected to the fifth IO terminal, the sixth IO terminal, the seventh IO terminal, and the eighth IO terminal of the first controller U1.

[0039] In a specific embodiment, the above-mentioned fifth power transistor Q5, sixth power transistor Q6, seventh power transistor Q7, and eighth power transistor Q8 can all be IGBTs, forming a bidirectional inverter circuit, which is controlled by the first controller U1 to complete the conversion regulation of DC-AC and the conversion regulation of AC-DC.

[0040] Further, the energy storage control module 3 includes a first control tube M1, a second control tube M2, a third control tube M3, a fourth control tube M4, a first inductor L1, a second inductor L2, a first energy storage module, a second energy storage module, and a third energy storage module.

[0041] Specifically, the drain of the first control transistor M1 and the first end of the first energy storage module are both connected to the first end of the first capacitor C1. The source of the first control transistor M1 is connected to one end of the first inductor L1, the first end of the second energy storage module, and the drain of the second control transistor M2. The second end of the first energy storage module is connected to the other end of the first inductor L1 and the drain of the fourth control transistor M4. The source of the fourth control transistor M4 is connected to one end of the second inductor L2, the first end of the third energy storage module, and the second end of the second energy storage module. The other end of the second inductor L2 is connected to the source of the second control transistor M2 and the drain of the third control transistor M3. The second ends of the third energy storage module and the third control transistor M3 are both connected to the second end of the first capacitor C1. The gates of the first control transistor M1, the second control transistor M2, the third control transistor M3, and the fourth control transistor M4 are respectively connected to the eleventh IO terminal, the tenth IO terminal, the twelfth IO terminal, and the thirteenth IO terminal of the first controller U1.

[0042] In a specific embodiment, the above-mentioned first control transistor M1, second control transistor M2, third control transistor M3, and fourth control transistor M4 can all be selected as N-channel enhancement MOS transistors, and cooperate with the first inductor L1 and the second inductor L2 to complete the balance adjustment of the first energy storage module, the second energy storage module, and the third energy storage module. The above-mentioned first energy storage module, second energy storage module, and third energy storage module are three energy storage devices with the same electric energy, which will not be elaborated here.

[0043] Furthermore, the energy control module 7 includes a new energy device, a third capacitor C3, a third inductor L3, a first resistor R1, a ninth power transistor Q9, and a third diode D3;

[0044] Specifically, the first end of the new energy device is connected to one end of the third capacitor C3 and is connected to one end of the first resistor R1 through the third inductor L3. The other end of the first resistor R1 is connected to the anode of the third diode D3 and the collector of the ninth power transistor Q9. The emitter of the ninth power transistor Q9, the other end of the third capacitor C3, and the second end of the new energy device are all grounded. The anode of the third diode D3 is connected to the first end of the first energy storage module. The gate of the ninth power transistor Q9 is connected to the ninth IO terminal of the first controller U1.

[0045] In a specific embodiment, the above-mentioned ninth power transistor Q9 can be selected as an IGBT, and cooperate with the third inductor L3, the first resistor R1, and the third diode D3 to form a boost circuit to perform voltage stabilization and boosting processing on the electric energy output by the new energy device.

[0046] A portable energy storage device based on a bidirectional inverter according to the present invention can provide AC electrical energy through an AC device. An inverter module 6 composed of a first controller U1 controlling a fifth power transistor Q5, a sixth power transistor Q6, a seventh power transistor Q7, and an eighth power transistor Q8 performs AC-DC processing. And the first controller U1 controls the turn-off of a third power transistor Q3, and cooperates with a second capacitor C2 for soft-start control, reducing the DC electrical energy output by the inverter module 6 and maintaining the original DC electrical energy transmission to a charge and discharge control module 4 after a period of time. In the charge and discharge control module 4, the conduction of a second power transistor Q2 is controlled by a first control, and the conduction degree of a fourth power transistor Q4 is adjusted, so that the inductor on the primary side of a first transformer T1 is charged, converting electrical energy into magnetic energy. And when the second power transistor Q2 is turned off, the magnetic energy is converted into electrical energy and transmitted to a energy storage control module 3 through a second diode D2 for energy storage. When the energy storage control module 3 discharges, a step-up process is performed by a first diode D1, a first transformer T1, and a first power transistor Q1. At the same time, the third power transistor Q3 and the second capacitor C2 perform soft-start control on the electrical energy output by the energy storage control module 3 and transmit it to the inverter module 6, which performs DC-AC processing and transmits it to the AC device. In the energy storage control module 3, the electrical energy balance between a second energy storage module and a third energy storage module can be achieved by adjusting the turn-off of a third control transistor M3 and a second control transistor M2. And the electrical energy balance between the second energy storage module and a first energy storage module can be adjusted by a first control transistor M1 and a fourth control transistor M4. In an energy control module 7, the operation of a ninth power transistor Q9 is controlled by the first controller U1, which can control a new energy device to provide the required stored electrical energy for the energy storage control module 3, improving the endurance of the portable energy storage device.

[0047] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced by the present invention. Any reference signs in the claims should not be regarded as limiting the claimed invention.

[0048] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A portable energy storage device based on a bidirectional inverter, characterized in that: The portable energy storage device based on a bidirectional inverter includes: an AC power module, an intelligent control module, an energy storage control module, a charge and discharge control module, a startup regulation module, an inverter module, and an energy control module; The AC power module is used to provide AC electrical energy and output the electrical energy output by the inverter module; The intelligent control module is used to detect the electrical energy condition of the module, output a first pulse signal and control the operation of the inverter module, output a discharge signal and a charge signal and control the operation of the charge and discharge control module, output a startup signal and control the operation of the startup regulation module, output a voltage regulation signal and control the operation of the energy storage control module, and output a second pulse signal and control the operation of the energy control module; The energy storage control module is connected to the intelligent control module and is used to receive the voltage regulation signal and evenly regulate the electrical energy of the energy storage module; The inverter module is connected to the AC power module and the intelligent control module and is used to control the operation of the inverter circuit through the first pulse signal, rectify the AC electrical energy output by the AC power module through the inverter circuit, and convert the DC electrical energy output by the charge and discharge control module into AC electrical energy and transmit it to the AC power module through the inverter circuit; The charge and discharge control module is connected to the energy storage control module, the inverter module, and the intelligent control module and is used to receive the charge signal and perform DC-DC regulation processing through an isolated unidirectional power regulation circuit, and receive the discharge signal and perform boost processing through a boost circuit; The startup regulation module is connected to the inverter module and the intelligent control module and is used to perform soft startup regulation control on the electrical energy rectified and output by the inverter module and the DC electrical energy input to the inverter module; The energy control module is connected to the energy storage control module and the intelligent control module and is used to receive the second pulse signal and regulate the electrical energy output by the new energy circuit, and provide DC electrical energy for the energy storage control module; The energy storage control module includes a first control tube, a second control tube, a third control tube, a fourth control tube, a first inductor, a second inductor, a first energy storage module, a second energy storage module, and a third energy storage module; The drain of the first control tube is connected to the first end of the first energy storage module, the source of the first control tube is connected to one end of the first inductor, the first end of the second energy storage module, and the drain of the second control tube, the second end of the first energy storage module is connected to the other end of the first inductor and the drain of the fourth control tube, the source of the fourth control tube is connected to one end of the second inductor, the first end of the third energy storage module, and the second end of the second energy storage module, the other end of the second inductor is connected to the source of the second control tube and the drain of the third control tube, and the second end of the third energy storage module is connected to the source of the third control tube.

2. The portable energy storage device based on a bidirectional inverter according to claim 1, characterized in that, The charge and discharge control module includes a first capacitor, a first diode, a first power tube, a second power tube, and a first transformer; the intelligent control module includes a first controller; The first end of the first capacitor and the anode of the first diode are connected to the energy storage control module. The cathode of the first diode is connected to the first end of the primary side of the first transformer and the collector of the second power transistor. The second end of the first capacitor, the emitter of the second power transistor, and the emitter of the first power transistor are all grounded. The gates of the first power transistor and the second power transistor are respectively connected to the first IO terminal and the second IO terminal of the first controller. The second end of the primary side of the first transformer is connected to the collector of the first power transistor and the start-up regulation module.

3. The portable energy storage device based on a bidirectional inverter according to claim 2, characterized in that, The charge and discharge control module further includes a second diode and a fourth power transistor. The anode of the second diode is connected to the first end of the secondary side of the first transformer. The emitter of the fourth power transistor is connected to the second end of the secondary side of the first transformer. The collector of the fourth power transistor is connected to the second end of the first capacitor. The cathode of the second diode is connected to the first end of the first capacitor. The gate of the fourth power transistor is connected to the fourth IO terminal of the first controller.

4. The portable energy storage device based on a bidirectional inverter according to claim 3, characterized in that, The start-up regulation module includes a third power transistor and a second capacitor. The emitter of the third power transistor is connected to the second end of the primary side of the first transformer. The collector of the third power transistor is connected to the second end of the first capacitor through the second capacitor. The gate of the third power transistor is connected to the third IO terminal of the first controller.

5. The portable energy storage device based on a bidirectional inverter according to claim 4, characterized in that, The inverter module includes a fifth power transistor, a sixth power transistor, a seventh power transistor, and an eighth power transistor. The AC power supply module includes an AC device. The collector of the fifth power transistor is connected to the collector of the seventh power transistor and the emitter of the third power transistor. The emitter of the fifth power transistor is connected to the first end of the AC device and the collector of the sixth power transistor. The emitter of the seventh power transistor is connected to the second end of the AC device and the collector of the eighth power transistor. The emitter of the sixth power transistor is connected to the emitter of the eighth power transistor and the second end of the first capacitor. The gates of the fifth power transistor, the sixth power transistor, the seventh power transistor, and the eighth power transistor are respectively connected to the fifth IO terminal, the sixth IO terminal, the seventh IO terminal, and the eighth IO terminal of the first controller.

6. The portable energy storage device based on a bidirectional inverter according to claim 2, characterized in that, The drain of the first control transistor and the first end of the first energy storage module are both connected to the first end of the first capacitor. The second end of the third energy storage module and the source of the third control transistor are both connected to the second end of the first capacitor. The gates of the first control transistor, the second control transistor, the third control transistor, and the fourth control transistor are respectively connected to the eleventh IO terminal, the tenth IO terminal, the twelfth IO terminal, and the thirteenth IO terminal of the first controller.

7. The portable energy storage device based on a bidirectional inverter according to claim 6, wherein The energy control module includes a new energy device, a third capacitor, a third inductor, a first resistor, a ninth power transistor, and a third diode. The first end of the new energy device is connected to one end of the third capacitor and is connected to one end of the first resistor through the third inductor. The other end of the first resistor is connected to the anode of the third diode and the collector of the ninth power transistor. The emitter of the ninth power transistor, the other end of the third capacitor, and the second end of the new energy device are all grounded. The anode of the third diode is connected to the first end of the first energy storage module. The gate of the ninth power transistor is connected to the ninth IO terminal of the first controller.

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