Solar power generation voltage regulation circuit

Abstract

The invention discloses a solar power generation voltage regulation circuit, which relates to the technical field of solar power generation and comprises a solar module used for photoelectric conversion, voltage regulation and output of first electric energy; the solar control module is used for sampling voltage and comparing the voltage with a first low-voltage threshold value, a second low-voltage threshold value and a charging threshold value which are set; the charging and discharging control module is used for controlling transmission of electric energy and charging and discharging of the energy storage control module; the energy storage control module is used for storing energy and boosting and discharging; the power supply control module is used for electric energy superposition control; the output module is used for receiving the electric energy and supplying power to connected electronic equipment; the output detection module is used for low-voltage detection; and the intelligent control module is used for signal receiving and module control. The solar power generation voltage regulation circuit can maintain power supply requirements in different power supply states, improve the utilization rate of solar energy and avoid energy waste.

Description

Technical Field

[0001] The invention relates to the technical field of solar power generation, in particular to a solar power generation voltage regulating circuit. Background Art

[0002] Photovoltaic power generation is a technology that uses the photovoltaic effect of semiconductor interfaces to directly convert light energy into electrical energy. It is mainly composed of three parts: solar panels, controllers, and power conditioning converters. In the prior art, solar energy generally uses a Boost circuit for voltage regulation. The Boost circuit is controlled by a microcontroller through an MPPT algorithm. The power provided is stored in a battery, and the battery supplies power when the output voltage of the Boost circuit is low to meet the power supply demand. However, when the solar voltage is low, the output voltage of the Boost circuit will also be reduced. When switching to the battery for power supply, the low voltage generated by the solar energy cannot be used, resulting in energy waste, so it needs to be improved. Summary of the invention

[0003] The embodiment of the present invention provides a solar power generation voltage regulating circuit to solve the problems raised in the above background technology.

[0004] According to an embodiment of the present invention, a solar power generation voltage regulation circuit is provided, comprising: a solar module, a solar control module, a charge and discharge control module, an energy storage control module, a power supply control module, an output module, an output detection module and an intelligent control module;

[0005] A solar module, connected to the intelligent control module, for performing photoelectric conversion and, upon receiving a first pulse signal output by the intelligent control module, performing voltage regulation and outputting a first electric energy;

[0006] a solar control module connected to the solar module, for performing voltage sampling on the first electric energy and outputting a first sampling signal, setting a first low-voltage threshold, a second low-voltage threshold and a charging threshold, outputting a first control signal when the first sampling signal is lower than the first low-voltage threshold, stopping outputting the first control signal and outputting a second control signal when the first sampling signal is lower than the second low-voltage threshold, and outputting a third control signal when the first sampling signal is greater than the charging threshold;

[0007] A charge and discharge control module, connected to the energy storage control module, the power supply control module, the solar module, the output module and the solar control module, for transmitting the second electric energy output by the energy storage control module to the power supply control module, transmitting the second electric energy to the output module when receiving a second control signal, and transmitting the first electric energy to the energy storage control module when receiving a third control signal;

[0008] an energy storage control module, connected to the intelligent control module, and used to store the first electric energy transmitted by the charge and discharge control module, release the stored electric energy, and upon receiving the second pulse signal output by the intelligent control module, perform voltage boost processing on the released electric energy and output the second electric energy;

[0009] A power supply control module, connected to the energy storage control module, the solar module and the solar control module, for superimposing the second electric energy transmitted by the charge and discharge control module and the first electric energy upon receiving the first control signal and outputting a third electric energy;

[0010] an output module, connected to the solar module and the power supply control module, for receiving the first electric energy, the second electric energy or the third electric energy and supplying power to a connected electronic device;

[0011] an output detection module, connected to the output module, for performing voltage sampling on the first electric energy, the second electric energy or the third electric energy, and outputting a fourth control signal when the sampled second sampling signal is greater than a set third low-voltage threshold;

[0012] The intelligent control module is connected to the output detection module and the solar control module, and is used to receive the first sampling signal and output the first pulse signal. When the first control signal or the second control signal is received, the second pulse signal is output. When the first control signal and the fourth control signal are received, the duty cycle of the second pulse signal is adjusted. When the fourth control signal stops being received, the duty cycle of the second pulse signal is stopped being adjusted.

[0013] As a further solution of the present invention: the solar module includes a solar cell, a first capacitor, a first inductor, a first power tube, a second capacitor and a second diode; the output module includes a third diode, a fifth capacitor and an output port; the intelligent control module includes a first controller;

[0014] Preferably, the first end of the solar cell is connected to one end of the first capacitor and is connected to the drain of the first power tube and the anode of the first diode through the first inductor, the cathode of the first diode is connected to the anode of the second diode and the first end of the second capacitor, the second end of the second capacitor is connected to the source of the first power tube, the other end of the first capacitor, the second end of the solar cell, one end of the fifth capacitor and one end of the output port, the other end of the output port is connected to the other end of the fifth capacitor and the cathode of the third diode, the anode of the third diode is connected to the cathode of the second diode, and the gate of the first power tube is connected to the IO1 end of the first controller.

[0015] As a further solution of the present invention: the charge and discharge control module includes a fourth power tube and a second power tube;

[0016] Preferably, the source of the fourth power tube is connected to the cathode of the second diode, the drain of the fourth power tube is connected to the drain of the second power tube and the power supply control module, the gate of the fourth power tube and the gate of the second power tube are connected to the solar control module, and the source of the second power tube is connected to the energy storage control module.

[0017] As a further solution of the present invention: the energy storage control module includes an energy storage device, a sixth capacitor, a second inductor and a fifth power tube;

[0018] Preferably, the first end of the energy storage device is connected to the first end of the sixth capacitor and is connected to the drain of the fifth power tube and the source of the second power tube through the second inductor, the second end of the energy storage device is connected to the second end of the sixth capacitor, the source of the fifth power tube and the ground, and the gate of the fifth power tube is connected to the IO3 terminal of the first controller.

[0019] As a further solution of the present invention: the output detection module includes a first resistor, a second resistor, a first comparator and a first threshold device;

[0020] Preferably, the first end of the second resistor is connected to the inverting end of the first comparator and is connected to the anode of the third diode through the first resistor, the second end of the second resistor is grounded, the non-inverting end of the first comparator is connected to the first threshold device, and the output end of the first comparator is connected to the IO2 end of the first controller.

[0021] As a further solution of the present invention: the power supply control module includes a third power tube, a first thyristor, a third capacitor and a fourth capacitor;

[0022] Preferably, the drain of the third power tube is connected to the drain of the second power tube, the source of the third power tube is connected to one end of the third capacitor and grounded through the fourth capacitor, the other end of the third capacitor is connected to one end of the first thyristor, the other end of the first thyristor is connected to the anode of the third diode, and the control end of the first thyristor is connected to the gate of the third power tube and the solar control module.

[0023] As a further solution of the present invention: the solar control module includes a third resistor, a fourth resistor, a second comparator, a third comparator, a fourth comparator, a second threshold device, a third threshold device, a fourth threshold device and a first switch tube;

[0024] Preferably, one end of the third resistor is connected to the first end of the second capacitor, the other end of the third resistor is connected to the inverting end of the second comparator, the inverting end of the third comparator and the non-inverting end of the fourth comparator and connected to the second end of the second capacitor through the fourth resistor, the non-inverting end of the second comparator, the non-inverting end of the third comparator and the inverting end of the fourth comparator are respectively connected to the second threshold device, the third threshold device and the fourth threshold device, the output end of the second comparator is connected to the gate of the third power tube, the collector of the first switch tube and the IO5 end of the first controller, the output end of the third comparator is connected to the IO6 end of the first control, the base of the first switch tube and the gate of the fourth power tube, the output end of the fourth comparator is connected to the gate of the second power tube, and the emitter of the first switch tube is grounded.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: the solar power generation voltage regulating circuit of the present invention can perform photoelectric conversion by the solar module and cooperate with the intelligent control module to perform voltage boost regulation processing to meet the power supply to the output module. When the voltage output by the solar module cannot meet the power supply demand, the intelligent control module will control the energy storage control module to perform discharge and voltage regulation processing, and cooperate with the power supply control module to perform electric energy superposition processing to maintain the power supply demand. After the voltage output by the solar module is reduced to a certain level, the energy storage control module will be controlled by the charge and discharge control module to supply power. When the voltage output by the solar module meets the charging demand of the energy storage control module, the energy storage control module will be charged and controlled, thereby improving the utilization rate of solar energy and avoiding energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0027] Figure 1 A schematic block diagram of a solar power generation voltage regulation circuit provided by an embodiment of the present invention.

[0028] Figure 2 A circuit diagram of a solar power generation voltage regulating circuit provided in an embodiment of the present invention.

[0029] Figure 3 A circuit diagram of an energy storage control module provided in an embodiment of the present invention.

[0030] Figure 4 A circuit diagram of a solar control module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In one embodiment, see Figure 1 , a solar power generation voltage regulation circuit, comprising: a solar module 1, a solar control module 2, a charge and discharge control module 3, an energy storage control module 4, a power supply control module 5, an output module 6, an output detection module 7 and an intelligent control module 8;

[0033] Specifically, the solar module 1 is connected to the intelligent control module 8, and is used to perform photoelectric conversion and, upon receiving a first pulse signal output by the intelligent control module 8, perform voltage regulation and output the first electric energy;

[0034] A solar control module 2 is connected to the solar module 1, and is used to perform voltage sampling on the first electric energy and output a first sampling signal, set a first low-voltage threshold, a second low-voltage threshold, and a charging threshold, and output a first control signal when the first sampling signal is lower than the first low-voltage threshold, and stop outputting the first control signal and output a second control signal when the first sampling signal is lower than the second low-voltage threshold, and output a third control signal when the first sampling signal is greater than the charging threshold;

[0035] The charge and discharge control module 3 is connected with the energy storage control module 4, the power supply control module 5, the solar module 1, the output module 6 and the solar control module, and is used to transmit the second electric energy output by the energy storage control module 4 to the power supply control module 5, and transmit the second electric energy to the output module 6 when receiving the second control signal, and transmit the first electric energy to the energy storage control module 4 when receiving the third control signal;

[0036] The energy storage control module 4 is connected to the intelligent control module 8 and is used to store the first electric energy transmitted by the charge and discharge control module 3, release the stored electric energy and, when receiving the second pulse signal output by the intelligent control module 8, boost the released electric energy and output the second electric energy;

[0037] The power supply control module 5 is connected to the energy storage control module 4, the solar module 1 and the solar control module 2, and is used for superimposing the second electric energy transmitted by the charge and discharge control module 3 and the first electric energy upon receiving the first control signal and outputting the third electric energy;

[0038] an output module 6, connected to the solar module 1 and the power supply control module 5, for receiving the first electric energy, the second electric energy or the third electric energy and supplying power to the connected electronic device;

[0039] An output detection module 7, connected to the output module 6, for performing voltage sampling on the first electric energy, the second electric energy or the third electric energy, and outputting a fourth control signal when the sampled second sampling signal is greater than a set third low-voltage threshold;

[0040] The intelligent control module 8 is connected to the output detection module 7 and the solar control module 2, and is used to receive the first sampling signal and output the first pulse signal. When the first control signal or the second control signal is received, the second pulse signal is output. When the first control signal and the fourth control signal are received, the duty cycle of the second pulse signal is adjusted. When the fourth control signal stops being received, the duty cycle of the second pulse signal is stopped being adjusted.

[0041] In a specific embodiment, the solar module 1 may adopt a solar circuit composed of a solar cell, an inductor, a field effect transistor, etc., and may perform photoelectric conversion and boost regulation; the solar control module 2 may adopt a solar control circuit composed of a resistor, a threshold device, a comparator, etc., and may perform voltage sampling on the solar module 1, set a first low voltage threshold, a second low voltage threshold and a charging threshold, and compare the voltage of the sampled signal with the set threshold value, so as to control the power supply state of the charge and discharge control module 3 and the power supply control module 5, wherein the first low voltage threshold is greater than the second low voltage threshold, and is the minimum power voltage required by the electronic device connected to the output module 6, and the charging threshold is the charging voltage of the energy storage control module 4; the charge and discharge control module 3 may adopt a charge and discharge control circuit composed of a field effect transistor, and may control the transmission of electric energy and control the charging and discharging state of the energy storage control module 4; the energy storage control The control module 4 can adopt an energy storage control circuit composed of an energy storage device, a field effect transistor, an inductor, etc., which can perform energy storage and boost discharge; the power supply control module 5 can adopt a power supply control circuit composed of a field effect transistor, a thyristor, and a capacitor, which can receive electric energy and bootstrap electric energy; the output module 6 can adopt an output circuit composed of an output port, a capacitor, and a diode, which can receive electric energy and connect to electronic equipment; the output detection module 7 can adopt an output detection circuit composed of a resistor, a comparator, and a threshold device, which can set a third low-voltage threshold and perform low-voltage detection on the electric energy input to the output module 6, and the third low-voltage threshold is equal to the first low-voltage threshold; the intelligent control module 8 can adopt an intelligent control circuit composed of a single-chip microcomputer, which integrates many components such as an operator, a controller, a memory, and an input and output device to realize signal processing, data storage, module control, timing control and other functions.

[0042] In another embodiment, see Figure 1 , Figure 2 and Figure 3 The solar module 1 includes a solar cell, a first capacitor C1, a first inductor L1, a first power tube Q1, a second capacitor C2 and a second diode D2; the output module 6 includes a third diode D3, a fifth capacitor C5 and an output port; the intelligent control module 8 includes a first controller U1;

[0043] Specifically, a first end of the solar cell is connected to one end of the first capacitor C1 and is connected to the drain of the first power tube Q1 and the anode of the first diode through the first inductor L1, the cathode of the first diode is connected to the anode of the second diode D2 and the first end of the second capacitor C2, the second end of the second capacitor C2 is connected to the source of the first power tube Q1, the other end of the first capacitor C1, the second end of the solar cell, one end of the fifth capacitor C5 and one end of the output port, the other end of the output port is connected to the other end of the fifth capacitor C5 and the cathode of the third diode D3, the anode of the third diode D3 is connected to the cathode of the second diode D2, and the gate of the first power tube Q1 is connected to the IO1 end of the first controller U1.

[0044] In a specific embodiment, the first power tube Q1 may be an N-channel field effect tube, which cooperates with the first capacitor C1, the first inductor L1, the first diode and the second capacitor C2 to perform voltage boosting processing; the first controller U1 may be an STM32 single chip microcomputer.

[0045] Furthermore, the charge and discharge control module 3 includes a fourth power tube Q4 and a second power tube Q2;

[0046] Specifically, the source of the fourth power tube Q4 is connected to the cathode of the second diode D2, the drain of the fourth power tube Q4 is connected to the drain of the second power tube Q2 and the power supply control module 5, the gate of the fourth power tube Q4 and the gate of the second power tube Q2 are connected to the solar control module 2, and the source of the second power tube Q2 is connected to the energy storage control module 4.

[0047] In a specific embodiment, both the fourth power tube Q4 and the second power tube Q2 can be N-channel field effect tubes, wherein the fourth power tube Q4 performs discharge control, and the second power tube Q2 performs charge control.

[0048] Further, the energy storage control module 4 includes an energy storage device, a sixth capacitor C6, a second inductor L2 and a fifth power tube Q5;

[0049] Specifically, the first end of the energy storage device is connected to the first end of the sixth capacitor C6 and is connected to the drain of the fifth power tube Q5 and the source of the second power tube Q2 through the second inductor L2. The second end of the energy storage device is connected to the second end of the sixth capacitor C6, the source of the fifth power tube Q5 and the ground. The gate of the fifth power tube Q5 is connected to the IO3 terminal of the first controller U1.

[0050] In a specific embodiment, the energy storage device may be a battery pack; the fifth power tube Q5 may be an N-channel field effect tube, which cooperates with the sixth capacitor C6 and the second inductor L2 to perform boost discharge.

[0051] Further, the output detection module 7 includes a first resistor R1, a second resistor R2, a first comparator A1 and a first threshold device;

[0052] Specifically, a first end of the second resistor R2 is connected to the inverting end of the first comparator A1 and is connected to the anode of the third diode D3 through the first resistor R1, a second end of the second resistor R2 is grounded, a non-inverting end of the first comparator A1 is connected to the first threshold device, and an output end of the first comparator A1 is connected to the IO2 end of the first controller U1.

[0053] In a specific embodiment, the first comparator A1 may be a LM358 comparator; the first threshold device may be composed of a reference power supply and a resistor to provide a third low voltage threshold.

[0054] Furthermore, the power supply control module 5 includes a third power tube Q3, a first thyristor S1, a third capacitor C3 and a fourth capacitor C4;

[0055] Specifically, the drain of the third power tube Q3 is connected to the drain of the second power tube Q2, the source of the third power tube Q3 is connected to one end of the third capacitor C3 and grounded through the fourth capacitor C4, the other end of the third capacitor C3 is connected to one end of the first thyristor S1, the other end of the first thyristor S1 is connected to the anode of the third diode D3, and the control end of the first thyristor S1 is connected to the gate of the third power tube Q3 and the solar control module 2.

[0056] In a specific embodiment, the third power tube Q3 may be an N-channel field effect tube; the first thyristor S1 may be a bidirectional thyristor.

[0057] Further, the solar control module 2 includes a third resistor R3, a fourth resistor R4, a second comparator A2, a third comparator A3, a fourth comparator A4, a second threshold device, a third threshold device, a fourth threshold device and a first switch tube V1;

[0058] Specifically, one end of the third resistor R3 is connected to the first end of the second capacitor C2, the other end of the third resistor R3 is connected to the inverting end of the second comparator A2, the inverting end of the third comparator A3 and the non-inverting end of the fourth comparator A4 and connected to the second end of the second capacitor C2 through the fourth resistor R4, the non-inverting end of the second comparator A2, the non-inverting end of the third comparator A3 and the inverting end of the fourth comparator A4 are respectively connected to the second threshold device, the third threshold device and the fourth threshold device, the output end of the second comparator A2 is connected to the gate of the third power tube Q3, the collector of the first switch tube V1 and the IO5 end of the first controller U1, the output end of the third comparator A3 is connected to the IO6 end of the first control, the base of the first switch tube V1 and the gate of the fourth power tube Q4, the output end of the fourth comparator A4 is connected to the gate of the second power tube Q2, and the emitter of the first switch tube V1 is grounded.

[0059] In a specific embodiment, the second comparator A2, the third comparator A3 and the fourth comparator A4 can all be LM358 comparators; the second threshold device, the third threshold device and the fourth threshold device can all be composed of a reference power supply and a resistor, and respectively provide a first low-voltage threshold, a second low-voltage threshold and a charging threshold; the first switch tube V1 can be an NPN transistor.

[0060] In a solar power generation voltage regulation circuit of the present embodiment, a solar cell performs photoelectric conversion, and the IO1 end of the first controller U1 controls the conduction state of the first power tube Q1, cooperates with the first capacitor C1, the first inductor L1, the first diode and the second capacitor C2 to perform boost regulation control, and outputs the first electric energy, which is transmitted to the electronic device connected to the output port through the second diode D2 and the third diode D3. The first electric energy is voltage sampled through the third resistor R3 and the fourth resistor R4 and a first sampling signal is output. When the first sampling signal is less than the first low-voltage threshold set by the second threshold device, the first resistor R1 and the second resistor R2 perform voltage sampling on the electric energy input to the third diode D3, and the sampled signal will also be lower than the third low-voltage threshold set by the first threshold device. At this time, the second comparator A2 outputs a high level, which is received by the IO5 end of the first controller U1 and controls the conduction of the third power tube Q3 and the first thyristor S1. At the same time, the IO3 end of the first controller U1 controls the conduction state of the fifth power tube Q5, and cooperates with the sixth capacitor C6, the second inductor L2 and the second field effect tube perform boost regulation and output the second electric energy, which is transmitted to the fourth capacitor C4 through the second power tube Q2 and the third power tube Q3. The third capacitor C3 stores the first electric energy, so that the first electric energy and the second electric energy are superimposed and the third electric energy is output. The third electric energy supplies power to the output port. The voltage of the second electric energy is adjusted according to the high level state output by the first comparator A1, that is, when the first comparator A1 outputs a high level, the voltage of the second electric energy rises until the first comparator A1 outputs a low level. If the first sampling signal is lower than the third threshold device, the third comparator A3 outputs a high level to control the first switch tube V1 and the fourth switch tube to be turned on. At this time, it means that the electric energy provided by the solar cell cannot meet the superimposed power supply demand. At this time, the boost power supply work will be directly performed through the energy storage control module 4 to supply power to the output port. If the first sampling signal is greater than the charging threshold provided by the fourth threshold device, the fourth comparator A4 will control the second power tube Q2 to be turned on, so that the energy storage device stores the first stored energy.

[0061] 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 exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0062] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A solar power generation voltage regulation circuit, characterized in that: The solar power generation voltage regulation circuit comprises: a solar module, a solar control module, a charge and discharge control module, an energy storage control module, a power supply control module, an output module, an output detection module and an intelligent control module; The solar module is connected to the intelligent control module, and is used to perform photoelectric conversion and, upon receiving a first pulse signal output by the intelligent control module, perform voltage regulation and output a first electric energy; The solar control module is connected to the solar module, and is used to perform voltage sampling on the first electric energy and output a first sampling signal, set a first low-voltage threshold, a second low-voltage threshold, and a charging threshold, output a first control signal when the first sampling signal is lower than the first low-voltage threshold, stop outputting the first control signal and output a second control signal when the first sampling signal is lower than the second low-voltage threshold, and output a third control signal when the first sampling signal is greater than the charging threshold; The charge and discharge control module is connected to the energy storage control module, the power supply control module, the solar module, the output module and the solar control module, and is used to transmit the second electric energy output by the energy storage control module to the power supply control module, transmit the second electric energy to the output module when receiving the second control signal, and transmit the first electric energy to the energy storage control module when receiving the third control signal; The energy storage control module is connected to the intelligent control module, and is used to store the first electric energy transmitted by the charge and discharge control module, release the stored electric energy, and when receiving the second pulse signal output by the intelligent control module, perform voltage boost processing on the released electric energy and output the second electric energy; The power supply control module is connected to the energy storage control module, the solar module and the solar control module, and is used to superimpose the second electric energy transmitted by the charge and discharge control module and the first electric energy upon receiving the first control signal and output the third electric energy; The output module is connected to the solar module and the power supply control module, and is used to receive the first electric energy, the second electric energy or the third electric energy and supply power to the connected electronic device; The output detection module is connected to the output module and is used to perform voltage sampling on the first electric energy, the second electric energy or the third electric energy, and output a fourth control signal when the sampled second sampling signal is greater than a set third low-voltage threshold; The intelligent control module is connected to the output detection module and the solar control module, and is used to receive a first sampling signal and output a first pulse signal. When receiving the first control signal or the second control signal, the intelligent control module outputs a second pulse signal. When receiving the first control signal and the fourth control signal, the intelligent control module adjusts the duty cycle of the second pulse signal. When the fourth control signal stops being received, the intelligent control module stops adjusting the duty cycle of the second pulse signal.

2. A solar power generation voltage regulating circuit according to claim 1, characterized in that: The solar module includes a solar cell, a first capacitor, a first inductor, a first power tube, a second capacitor and a second diode; the output module includes a third diode, a fifth capacitor and an output port; the intelligent control module includes a first controller; The first end of the solar cell is connected to one end of the first capacitor and is connected to the drain of the first power tube and the anode of the first diode through the first inductor, the cathode of the first diode is connected to the anode of the second diode and the first end of the second capacitor, the second end of the second capacitor is connected to the source of the first power tube, the other end of the first capacitor, the second end of the solar cell, one end of the fifth capacitor and one end of the output port, the other end of the output port is connected to the other end of the fifth capacitor and the cathode of the third diode, the anode of the third diode is connected to the cathode of the second diode, and the gate of the first power tube is connected to the IO1 end of the first controller.

3. A solar power generation voltage regulating circuit according to claim 2, characterized in that: The charge and discharge control module includes a fourth power tube and a second power tube; The source of the fourth power tube is connected to the cathode of the second diode, the drain of the fourth power tube is connected to the drain of the second power tube and the power supply control module, the gate of the fourth power tube and the gate of the second power tube are connected to the solar control module, and the source of the second power tube is connected to the energy storage control module.

4. A solar power generation voltage regulating circuit according to claim 3, characterized in that: The energy storage control module includes an energy storage device, a sixth capacitor, a second inductor and a fifth power tube; The first end of the energy storage device is connected to the first end of the sixth capacitor and is connected to the drain of the fifth power tube and the source of the second power tube through the second inductor. The second end of the energy storage device is connected to the second end of the sixth capacitor, the source of the fifth power tube and the ground. The gate of the fifth power tube is connected to the IO3 end of the first controller.

5. A solar power generation voltage regulating circuit according to claim 4, characterized in that: The output detection module includes a first resistor, a second resistor, a first comparator and a first threshold device; The first end of the second resistor is connected to the inverting end of the first comparator and is connected to the anode of the third diode through the first resistor. The second end of the second resistor is grounded. The non-inverting end of the first comparator is connected to the first threshold device. The output end of the first comparator is connected to the IO2 end of the first controller.

6. A solar power generation voltage regulating circuit according to claim 5, characterized in that: The power supply control module includes a third power tube, a first thyristor, a third capacitor and a fourth capacitor; The drain of the third power tube is connected to the drain of the second power tube, the source of the third power tube is connected to one end of the third capacitor and grounded through the fourth capacitor, the other end of the third capacitor is connected to one end of the first thyristor, the other end of the first thyristor is connected to the anode of the third diode, and the control end of the first thyristor is connected to the gate of the third power tube and the solar control module.

7. A solar power generation voltage regulating circuit according to claim 6, characterized in that: The solar control module includes a third resistor, a fourth resistor, a second comparator, a third comparator, a fourth comparator, a second threshold device, a third threshold device, a fourth threshold device and a first switch tube; One end of the third resistor is connected to the first end of the second capacitor, the other end of the third resistor is connected to the inverting end of the second comparator, the inverting end of the third comparator and the non-inverting end of the fourth comparator and is connected to the second end of the second capacitor through the fourth resistor, the non-inverting end of the second comparator, the non-inverting end of the third comparator and the inverting end of the fourth comparator are respectively connected to the second threshold device, the third threshold device and the fourth threshold device, the output end of the second comparator is connected to the gate of the third power tube, the collector of the first switch tube and the IO5 end of the first controller, the output end of the third comparator is connected to the IO6 end of the first control, the base of the first switch tube and the gate of the fourth power tube, the output end of the fourth comparator is connected to the gate of the second power tube, and the emitter of the first switch tube is grounded.

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