Photovoltaic power generation energy storage matching circuit

Abstract

The present invention discloses a photovoltaic power generation energy storage matching circuit, comprising a main control module, a regulating module and a transmission module. The main control module is connected to the regulating module and the transmission module. The main control module is used for automatically matching and feeding back a regulating signal based on a charging voltage of an energy storage unit at any node in a photovoltaic power grid area when there is a storage demand. The regulating module adjusts the output voltage of a photovoltaic power station based on a signal fed back by the main control module. The transmission module is used for outputting a power signal to the energy storage unit. The present invention can automatically match and transmit electric energy after matching based on a charging voltage of an energy storage unit at any node in a photovoltaic power grid area when there is a storage demand. The matching accuracy can be improved during the matching process, and the energy storage demand signals of energy storage units at other nodes can be cut off during the electric energy transmission period until the current energy storage unit completes energy storage and automatically resets.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation and energy storage, and in particular to a photovoltaic power generation and energy storage matching circuit. Background Art

[0002] In the same photovoltaic power grid area, different power consumption of each node will lead to different power states of its corresponding energy storage unit. Nodes with large power consumption will purchase electricity from the superior power grid to meet power demand when the photovoltaic power station cannot meet the power demand and its corresponding energy storage unit has no energy storage. Nodes with small power consumption will store energy in their corresponding energy storage units while their corresponding photovoltaic power stations meet the power demand until the energy storage is saturated and the excess power will be connected to the superior power grid for sale. The loss of power input and output of the superior power grid during grid connection is much higher than the loss caused by mutual transmission of each node in the same photovoltaic power grid area. In addition, due to the different power demand of each node in the same photovoltaic power grid area, the energy storage voltage of the energy storage unit is different. Therefore, a photovoltaic power generation energy storage matching circuit is proposed. When the energy storage unit of any node in the photovoltaic power grid area has energy storage demand, it can automatically match and transmit the excess power after matching based on its charging voltage. It can improve the matching accuracy during the matching process and cut off the energy storage demand signal of the energy storage units of other nodes during the power transmission until the current energy storage unit completes energy storage and automatically resets. Summary of the invention

[0003] In view of the above technical problems, the purpose of the present invention is to provide a photovoltaic power generation energy storage matching circuit, including a main control module, a regulating module, and a transmission module. The main control module is connected to the regulating module and the transmission module. The main control module is used to automatically match and feedback the adjustment signal based on the charging voltage of the energy storage unit at any node in the photovoltaic power grid area when there is an energy storage demand. The regulation module adjusts the output voltage of the photovoltaic power station based on the signal fed back by the main control module. The transmission module is used to output a power signal to the energy storage unit. The main control module includes a recording unit, and the recording unit includes a resistor R9, a resistor R10, a resistor R13, a resistor R14, an operational amplifier U1, a field effect transistor Q6, a diode D4, a diode D5, a capacitor C1, and a connector P1;

[0004] One end of the resistor R9 is connected to the power supply, and the other end is connected to one end of the resistor R10 and the anode of the diode D5; the in-phase end of the operational amplifier U1 is connected to the cathode of the diode D4, the cathode of the diode D5, and one end of the capacitor C1, the inverting end is connected to one end of the resistor R14, and the output end is connected to the other end of the resistor R14; the drain of the field effect transistor Q6 is connected to the anode of the diode D4 and one end of the resistor R13, and the source is connected to the connector P1 end; the other end of the resistor R10, the other end of the resistor R13, the other end of the capacitor C1 and the ground are connected.

[0005] Furthermore, the main control module also includes a detection unit, which includes a resistor R15, a resistor R16, a resistor R18, a resistor R19, a resistor R20, an operational amplifier U2, a field effect transistor Q4, a field effect transistor Q5, and a capacitor C2;

[0006] One end of the resistor R15 and one end of the resistor R18 are connected to the power supply; the in-phase end of the operational amplifier U2 is connected to one end of the resistor R13, the inverting end is connected to the other end of the resistor R15 and one end of the resistor R16, and the output end is connected to the base of the field effect transistor Q4 and the base of the field effect transistor Q5; the source of the field effect transistor Q4 is connected to the source of the field effect transistor Q5 and one end of the capacitor C2, and the drain is connected to one end of the resistor R20; the drain of the field effect transistor Q5 is connected to the other end of the resistor R18 and one end of the resistor R19; the other end of the resistor R16, the other end of the resistor R19, the other end of the resistor R20, the other end of the capacitor C2 and the ground are connected.

[0007] Further, the main control module also includes a matching unit, and the matching unit includes a resistor R1, a resistor R2, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a trigger U3, a digital potentiometer U4, an operational amplifier U5, a field effect tube Q1, a field effect tube Q2, a diode D1, a diode D2, a diode D3, a diode D6, a connector P2, and a connector P3;

[0008] The first pin of the trigger U3, one end of the resistor R4, and one end of the resistor R5 are connected to the power supply; the third pin of the trigger U3 is connected to the cathode of the diode D3, the cathode of the diode D6, and one end of the resistor R7, the fifth pin is connected to one end of the resistor R2, the second pin and the sixth pin are connected to the anode of the diode D1 and the source of the field effect transistor Q2, the fourth pin is connected to the cathode of the diode D1, the cathode of the diode D2, and one end of the resistor R1; the anode of the diode D6 is connected to one end of the resistor R20; the second pin of the digital potentiometer U4 is connected to the drain of the field effect transistor Q1 and one end of the resistor R6, the third pin and the fifth pin are connected to the resistor R 4, the other end of the operational amplifier U5, the non-inverting end, and the connector P3 end are connected, the seventh pin is connected to the drain of the field effect tube Q2, and one end of the resistor R8; the inverting end of the operational amplifier U5 is connected to the output end of the operational amplifier U1, and the output end is connected to the gate of the field effect tube Q6, the anode of the diode D2, the anode of the diode D3, and the connector P2 end; the source of the field effect tube Q1 is connected to the other end of the resistor R5, and the gate is connected to the gate of the field effect tube Q2; the other end of the resistor R1, the other end of the resistor R2, the other end of the resistor R6, the other end of the resistor R7, the other end of the resistor R8, the sixth pin of the digital potentiometer U4 and the ground end are connected.

[0009] Furthermore, the matching unit also includes a resistor R12, a field effect transistor Q3, and a connector P4;

[0010] The drain of the field effect tube Q3 is connected to one end of the capacitor C1, the source is connected to one end of the resistor R12, the gate is connected to the gate of the field effect tube Q1 and the end of the connector P4; the other end of the resistor R12 is connected to the ground end.

[0011] Furthermore, the detection unit also includes a resistor R17;

[0012] One end of the resistor R17 is connected to the gate of the field effect transistor Q4, and the other end is connected to the ground.

[0013] Furthermore, the recording unit further includes a resistor R3;

[0014] One end of the resistor R3 is connected to the gate of the field effect transistor Q6, and the other end is connected to the ground.

[0015] Furthermore, the matching unit further includes a resistor R11;

[0016] One end of the resistor R11 is connected to the gate of the field effect transistor Q3, and the other end is connected to the ground.

[0017] The beneficial effects of the present invention compared with the prior art are:

[0018] The present invention can automatically match the energy storage unit of any node in the photovoltaic power grid area based on its charging voltage when there is an energy storage demand, and transmit electric energy after the matching is completed. It can improve the matching accuracy during the matching process and cut off the energy storage demand signals of the energy storage units of other nodes during the electric energy transmission until the current energy storage unit completes energy storage and then automatically resets. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the prior art and the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The present invention provides an overall structural diagram.

[0021] Figure 2 This is a schematic diagram of the circuit structure of the main control module provided by the present invention. DETAILED DESCRIPTION

[0022] In order to make the objects and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0023] The present invention discloses a photovoltaic power generation energy storage matching circuit, comprising a main control module, a regulating module, and a conveying module, wherein the main control module is connected to the regulating module and the conveying module, wherein the main control module is used for automatically matching and feeding back a regulating signal based on a charging voltage of an energy storage unit at any node in a photovoltaic power grid area when there is an energy storage demand, wherein the regulating module adjusts the output voltage of the photovoltaic power station based on a signal fed back by the main control module, and the conveying module is used for outputting a power supply signal to the energy storage unit, wherein the main control module comprises a recording unit, wherein the recording unit comprises a resistor R9, a resistor R10, a resistor R13, a resistor R14, an operational amplifier U1, a field effect tube Q6, a diode D4, a diode D5, a capacitor C1, and a connector P1;

[0024] One end of the resistor R9 is connected to the power supply, and the other end is connected to one end of the resistor R10 and the anode of the diode D5; the in-phase end of the operational amplifier U1 is connected to the cathode of the diode D4, the cathode of the diode D5, and one end of the capacitor C1, the inverting end is connected to one end of the resistor R14, and the output end is connected to the other end of the resistor R14; the drain of the field effect transistor Q6 is connected to the anode of the diode D4 and one end of the resistor R13, and the source is connected to the connector P1 end; the other end of the resistor R10, the other end of the resistor R13, the other end of the capacitor C1 and the ground are connected.

[0025] Specifically, the main control module further includes a detection unit, which includes a resistor R15, a resistor R16, a resistor R18, a resistor R19, a resistor R20, an operational amplifier U2, a field effect transistor Q4, a field effect transistor Q5, and a capacitor C2;

[0026] One end of the resistor R15 and one end of the resistor R18 are connected to the power supply; the in-phase end of the operational amplifier U2 is connected to one end of the resistor R13, the inverting end is connected to the other end of the resistor R15 and one end of the resistor R16, and the output end is connected to the base of the field effect transistor Q4 and the base of the field effect transistor Q5; the source of the field effect transistor Q4 is connected to the source of the field effect transistor Q5 and one end of the capacitor C2, and the drain is connected to one end of the resistor R20; the drain of the field effect transistor Q5 is connected to the other end of the resistor R18 and one end of the resistor R19; the other end of the resistor R16, the other end of the resistor R19, the other end of the resistor R20, the other end of the capacitor C2 and the ground are connected.

[0027] Specifically, the main control module also includes a matching unit, which includes a resistor R1, a resistor R2, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a trigger U3, a digital potentiometer U4, an operational amplifier U5, a field effect tube Q1, a field effect tube Q2, a diode D1, a diode D2, a diode D3, a diode D6, a connector P2, and a connector P3;

[0028] The first pin of the trigger U3, one end of the resistor R4, and one end of the resistor R5 are connected to the power supply; the third pin of the trigger U3 is connected to the cathode of the diode D3, the cathode of the diode D6, and one end of the resistor R7, the fifth pin is connected to one end of the resistor R2, the second pin and the sixth pin are connected to the anode of the diode D1 and the source of the field effect transistor Q2, the fourth pin is connected to the cathode of the diode D1, the cathode of the diode D2, and one end of the resistor R1; the anode of the diode D6 is connected to one end of the resistor R20; the second pin of the digital potentiometer U4 is connected to the drain of the field effect transistor Q1 and one end of the resistor R6, the third pin and the fifth pin are connected to the resistor R 4, the other end of the operational amplifier U5, the non-inverting end, and the connector P3 end are connected, the seventh pin is connected to the drain of the field effect tube Q2, and one end of the resistor R8; the inverting end of the operational amplifier U5 is connected to the output end of the operational amplifier U1, and the output end is connected to the gate of the field effect tube Q6, the anode of the diode D2, the anode of the diode D3, and the connector P2 end; the source of the field effect tube Q1 is connected to the other end of the resistor R5, and the gate is connected to the gate of the field effect tube Q2; the other end of the resistor R1, the other end of the resistor R2, the other end of the resistor R6, the other end of the resistor R7, the other end of the resistor R8, the sixth pin of the digital potentiometer U4 and the ground end are connected.

[0029] Specifically, the matching unit further includes a resistor R12, a field effect transistor Q3, and a connector P4;

[0030] The drain of the field effect tube Q3 is connected to one end of the capacitor C1, the source is connected to one end of the resistor R12, the gate is connected to the gate of the field effect tube Q1 and the end of the connector P4; the other end of the resistor R12 is connected to the ground end.

[0031] Specifically, the detection unit also includes a resistor R17;

[0032] One end of the resistor R17 is connected to the gate of the field effect transistor Q4, and the other end is connected to the ground.

[0033] Specifically, the recording unit further includes a resistor R3;

[0034] One end of the resistor R3 is connected to the gate of the field effect transistor Q6, and the other end is connected to the ground.

[0035] Specifically, the matching unit further includes a resistor R11;

[0036] One end of the resistor R11 is connected to the gate of the field effect transistor Q3, and the other end is connected to the ground.

[0037] The energy storage units at each node in the photovoltaic power grid area set their charging voltage based on their energy storage voltage. When the current photovoltaic power station generates excess electricity and any energy storage unit has energy storage demand, the energy storage unit feeds back the charging voltage signal to the recording unit connector P1 in the main control module. The feedback time is set on the energy storage unit as needed based on its charging voltage. The signal at the connector P1 is fed through the source of the field effect transistor Q6, the drain of the field effect transistor Q6, and the resistor R13 to the ground terminal. The signal at the resistor R13 is fed back to the in-phase terminal of the operational amplifier U1 after passing through the diode D4. The potential of the capacitor C1 rises to the signal amplitude at the connector P1. The signal at the output of the operational amplifier U1 is fed back through the resistor R14 and the operational amplifier U1. The inverting terminal of the operational amplifier U1 is negatively feedback connected, and the operational amplifier U1 follows the signal at the output capacitor C1 end, so as to collect and record its charging voltage when the energy storage unit has energy storage demand while preventing signal interference from the lower circuit. When there is no signal feedback at the connector P1 end, the power supply signal goes through resistors R9 and R10 to the ground end, and the signal at the resistor R10 end is the reference signal. The signal at the resistor R10 end is fed back to the in-phase terminal of the operational amplifier U1 through the diode D5, and the potential of the capacitor C1 rises to the reference signal amplitude, so that when there is no signal feedback at the connector P1 end, the reference signal is fed back at the output end of the operational amplifier U1 to facilitate the matching work of the subsequent circuit.

[0038] Considering that matching immediately during the acquisition and recording period will affect the accuracy of matching, the signal at the resistor R13 end is fed back to the in-phase end of the operational amplifier U2, the power supply signal is fed back to the ground end through the resistors R15 and R16, and the signal at the resistor R16 end is fed back to the inverting end of the operational amplifier U2. When the connector P1 end obtains the signal feedback, the operational amplifier U2 outputs, and the signal at the output end of the operational amplifier U2 is fed back to the gate of the field effect tube Q5. The voltage difference between the gate of the field effect tube Q5 and the source of the field effect tube Q5 is higher than the conduction threshold, and the field effect tube Q5 is turned on. The power supply signal is fed back to the ground end through the resistors R18 and R19, and the signal at the resistor R19 end is fed back to the drain of the field effect tube Q5 and the source of the field effect tube Q5. The potential of capacitor C2 is increased to generate a matching signal at the capacitor C2 end. When the signal feedback is lost at the connector P1 end, the operational amplifier U2 is cut off, and the signal at the output end of the operational amplifier U2 is synchronously fed back to the gate of the field effect tube Q4. The voltage difference between the gate of the field effect tube Q4 and the source of the field effect tube Q4 is lower than the conduction threshold, the field effect tube Q4 is turned on, and the signal at the capacitor C2 end is transmitted to the ground end through the source of the field effect tube Q4, the drain of the field effect tube Q4, and the resistor R20. The potential of capacitor C2 decreases, and the resistor R17 is used to discharge the parasitic capacitance of the gate of the field effect tube Q4 and the gate of the field effect tube Q5, so that the matching signal is fed back after the recording unit completes the collection and recording of the charging voltage to improve the matching accuracy.

[0039] When the matching unit does not obtain a matching signal, the 6th pin of the trigger U3 is at a high level, and the signal is looped through the diode D1 and the resistor R1 to the ground terminal, and the 4th pin of the trigger U3 is at a high level. When the capacitor C2 releases the matching signal, the signal at the resistor R20 end is looped through the diode D6 and the resistor R7 to the ground terminal, and the signal at the resistor R7 end is fed back to the 3rd pin of the trigger U3, and the 3rd pin of the trigger U3 obtains a high-level signal, the 6th pin and the 4th pin of the trigger U3 are at a low level, and the 4th pin of the trigger U3 is at a low level. The resistor R2 is the pull-down resistor of the 5th pin of the trigger U3. At the same time, the 6th pin signal of the trigger U3 is looped through the source of the field effect tube Q2, the drain of the field effect tube Q2, and the ground terminal of the resistor R8, and the signal at the resistor R8 end is fed back to the 7th pin of the digital potentiometer U4. Pin 1 of the digital potentiometer U4 obtains the clock signal, pin 7 of the digital potentiometer U4 is at a low level, the power signal passes through resistor R5, the source of the field effect tube Q1, the drain of the field effect tube Q1, and resistor R6 to the ground terminal, the signal at the resistor R6 end is fed back to pin 2 of the digital potentiometer U4, pin 2 of the digital potentiometer U4 is at a high level, the power signal is fed back to pins 3 and 5 of the digital potentiometer U4 through resistor R4, the signal at the output end of the operational amplifier U1 is fed back to the inverting end of the operational amplifier U5, the signal at pin 3 of the digital potentiometer U4 is fed back to the non-inverting end of the operational amplifier U5, and when the matching unit obtains the matching signal feedback, the digital potentiometer U4 increases the signal amplitude at the non-inverting end of the operational amplifier U5. When the signal amplitude at the non-inverting end of the operational amplifier U5 is the same as the recorded amplitude, When the operational amplifier U5 outputs, the signal at the output end of the operational amplifier U5 is the adjustment signal, and the signal is fed back to the adjustment module through the connector P2. At the same time, the signal at the output end of the operational amplifier U5 is fed back to the 3rd pin of the trigger U3 through the diode D3, and the other way is fed back to the 4th pin of the trigger U3 through the diode D2. The 4th pin of the trigger U3 is high level, the 3rd pin of the trigger U3 is high level, the 6th pin of the trigger U3 feeds back a high level signal, the 7th pin of the digital potentiometer U4 is a high level signal, and the digital potentiometer U4 stops the signal adjustment at the in-phase end of the operational amplifier U5. At this time, the amplitude of the signal at the in-phase end of the operational amplifier U5 is the adjustment reference signal required for the adjustment module to adjust after the matching is completed. The signal is fed back to the adjustment module through the connector P3. At the same time as the operational amplifier U5 outputs, the output signal of the operational amplifier U5 is synchronously fed back to the gate of the field effect transistor Q6. The resistor R3 is used to discharge the parasitic capacitance of the gate of the field effect transistor Q6. The voltage difference between the gate of the field effect transistor Q6 and the source of the field effect transistor Q6 is higher than the conduction threshold, and the field effect transistor Q6 is cut off. In this way, the feedback channel of the signal at the connector P1 end is cut off during the power transmission after the matching is completed to prevent the other energy storage units from feeding back their charging voltage signals when they have energy storage needs. The photovoltaic power station feeds back the power supply signal to the photovoltaic inverter, and after inversion, it supplies power to the load corresponding to its node. The excess power is fed back to the corresponding energy storage unit. When the energy storage unit is saturated with energy, the excess power is fed back to the transmission module. When the adjustment module obtains the signal feedback from the connectors P2 and P3,The regulation module regulates the output voltage of the photovoltaic power station to the transmission module to the reference signal after the matching is completed. When the regulation module completes the regulation, it feeds back the regulation completion signal to the transmission module. The transmission module feeds back the power signal output by the photovoltaic power station to the energy storage unit of the demand node. In this way, when the energy storage unit of any node has energy storage demand, it automatically matches and transmits the electric energy after the matching is completed based on its charging voltage. When the energy storage unit completes energy storage, it cuts off the transmission module feedback to the power signal, and the transmission module feeds back a reset signal to the matching unit connector P4. The connector P4 signal is fed back to the gate of the field effect transistor Q1, the gate of the field effect transistor Q2, and the gate of the field effect transistor Q3. The resistor R11 is used to discharge the parasitic Capacitor, the voltage difference between the gate of field effect tube Q1 and the source of field effect tube Q1 is higher than the conduction threshold, field effect tube Q1 is cut off, the 2 pin of digital potentiometer U4 is low level, the voltage difference between the gate of field effect tube Q2 and the source of field effect tube Q2 is higher than the conduction threshold, field effect tube Q2 is cut off, the 7 pin of digital potentiometer U4 is low level, digital potentiometer U4 down-regulates the signal of the in-phase terminal of operational amplifier U5, the voltage difference between the gate of field effect tube Q3 and the source of field effect tube Q3 is higher than the conduction threshold, field effect tube Q3 is turned on, the signal at the capacitor C1 end is looped through the drain of field effect tube Q3, the source of field effect tube Q3, and resistor R12 to the ground end, the potential of capacitor C1 end drops, and the energy storage demand signal of the remaining energy storage units is cut off during the power transmission until the energy storage unit completes the energy storage and automatically resets. ,

[0040] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the equivalent elements of the claims be included in the invention. Any marking in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A photovoltaic power generation energy storage matching circuit, comprising a main control module, a regulating module, and a conveying module, wherein the main control module is connected to the regulating module and the conveying module, and characterized in that: The main control module is used to automatically match and feed back an adjustment signal based on the charging voltage of the energy storage unit at any node in the photovoltaic power grid area when there is an energy storage demand. The adjustment module adjusts the output voltage of the photovoltaic power station based on the signal fed back by the main control module. The transmission module is used to output a power signal to the energy storage unit. The main control module includes a recording unit, and the recording unit includes a resistor R9, a resistor R10, a resistor R13, a resistor R14, an operational amplifier U1, a field effect transistor Q6, a diode D4, a diode D5, a capacitor C1, and a connector P1; One end of the resistor R9 is connected to the power supply, and the other end is connected to one end of the resistor R10 and the anode of the diode D5; the operational amplifier U1 is connected at the same phase end to the cathode of the diode D4, the cathode of the diode D5, and one end of the capacitor C1, the inverting end is connected to one end of the resistor R14, and the output end is connected to the other end of the resistor R14; the drain of the field effect transistor Q6 is connected to the anode of the diode D4 and one end of the resistor R13, and the source is connected to the connector P1 end; the other end of the resistor R10, the other end of the resistor R13, the other end of the capacitor C1 and the ground are connected; The main control module also includes a detection unit, which includes a resistor R15, a resistor R16, a resistor R18, a resistor R19, a resistor R20, an operational amplifier U2, a field effect transistor Q4, a field effect transistor Q5, and a capacitor C2; One end of the resistor R15 and one end of the resistor R18 are connected to the power supply; the in-phase end of the operational amplifier U2 is connected to one end of the resistor R13, the inverting end is connected to the other end of the resistor R15 and one end of the resistor R16, and the output end is connected to the base of the field effect transistor Q4 and the base of the field effect transistor Q5; the source of the field effect transistor Q4 is connected to the source of the field effect transistor Q5 and one end of the capacitor C2, and the drain is connected to one end of the resistor R20; the drain of the field effect transistor Q5 is connected to the other end of the resistor R18 and one end of the resistor R19; the other end of the resistor R16, the other end of the resistor R19, the other end of the resistor R20, and the other end of the capacitor C2 are connected to the ground; The main control module also includes a matching unit, which includes a resistor R1, a resistor R2, a resistor R4, a resistor R5, a resistor R6, a resistor R7, a resistor R8, a trigger U3, a digital potentiometer U4, an operational amplifier U5, a field effect tube Q1, a field effect tube Q2, a diode D1, a diode D2, a diode D3, a diode D6, a connector P2, and a connector P3; The first pin of the trigger U3, one end of the resistor R4, and one end of the resistor R5 are connected to the power supply; the third pin of the trigger U3 is connected to the cathode of the diode D3, the cathode of the diode D6, and one end of the resistor R7, the fifth pin is connected to one end of the resistor R2, the second pin and the sixth pin are connected to the anode of the diode D1 and the source of the field effect tube Q2, the fourth pin is connected to the cathode of the diode D1, the cathode of the diode D2, and one end of the resistor R1; the anode of the diode D6 is connected to one end of the resistor R20; the second pin of the digital potentiometer U4 is connected to the drain of the field effect tube Q1 and one end of the resistor R6, the third pin and the fifth pin are connected to the other end of the resistor R4, the in-phase end of the operational amplifier U5, and the end of the connector P3, the seventh pin is connected to the drain of the field effect tube Q2 and one end of the resistor R8; the inverting end of the operational amplifier U5 is connected to the output end of the operational amplifier U1 The output end is connected to the gate of the field effect tube Q6, the anode of the diode D2, the anode of the diode D3, and the connector P2 end; the source of the field effect tube Q1 is connected to the other end of the resistor R5, and the gate is connected to the gate of the field effect tube Q2; the other end of the resistor R1, the other end of the resistor R2, the other end of the resistor R6, the other end of the resistor R7, the other end of the resistor R8, and the sixth pin of the digital potentiometer U4 are connected to the ground end, the first pin of the trigger U3 is the set 0 end, the second pin is the input end, the third pin is the clock input end, the fourth pin is the set 1 end, the fifth pin and the sixth pin are the output ends, the first pin of the digital potentiometer U4 is the clock pin, the seventh pin is the wake-up pin, the second pin is the adjustment pin, the third pin is the input end, the fifth pin is the tap end, and the sixth pin is the output end, and the first pin of the digital potentiometer U4 is connected to the clock power supply.

2. The photovoltaic power generation energy storage matching circuit according to claim 1, characterized in that: The matching unit also includes a resistor R12, a field effect transistor Q3, and a connector P4; The drain of the field effect tube Q3 is connected to one end of the capacitor C1, the source is connected to one end of the resistor R12, the gate is connected to the gate of the field effect tube Q1 and the end of the connector P4; the other end of the resistor R12 is connected to the ground end.

3. The photovoltaic power generation energy storage matching circuit according to claim 1, characterized in that: The detection unit also includes a resistor R17; One end of the resistor R17 is connected to the gate of the field effect transistor Q4, and the other end is connected to the ground.

4. The photovoltaic power generation energy storage matching circuit according to claim 1, characterized in that: The recording unit also includes a resistor R3; One end of the resistor R3 is connected to the gate of the field effect transistor Q6, and the other end is connected to the ground.

5. The photovoltaic power generation energy storage matching circuit according to claim 3, characterized in that: The matching unit also includes a resistor R11; One end of the resistor R11 is connected to the gate of the field effect transistor Q3, and the other end is connected to the ground.

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