Photovoltaic power generation control system

Abstract

The utility model provides a photovoltaic power generation control system, and belongs to the technical field of photovoltaic power generation. The photovoltaic power generation control system comprises a photovoltaic power generation module, an illumination sensor, a first single-pole double-throw switch, a first voltage compensation module, an inverter, a control module and an energy storage module. The photovoltaic power generation module is connected with the moving end of the first single-pole double-throw switch and the energy storage module. A first fixed end of the first single-pole double-throw switch is connected with the first voltage compensation module, a second fixed end of the first single-pole double-throw switch is connected with the inverter, the first voltage compensation module is connected with the inverter, and the inverter is connected with an external power grid; the photovoltaic power generation module is configured to convert solar energy into electric energy and transmit the electric energy to a power grid; the photovoltaic power generation module is further configured to supply power to the energy storage module; the control module is configured to control the working state of the first single-pole double-throw switch according to light intensity data collected by the illumination sensor. The energy utilization rate and the stability of the system can be improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of photovoltaic power generation, and particularly to a photovoltaic power generation control system. Background Art

[0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy using the photovoltaic effect at the semiconductor interface. As a clean and renewable energy utilization method, the photovoltaic power generation system has broad development prospects and application potential. With the continuous progress of technology and the growth of market demand, photovoltaic power generation will play an increasingly important role in the global energy structure. However, in the existing technology, the stability of the photovoltaic power generation system cannot meet the power consumption requirements of the power grid. Summary of the Utility Model

[0003] Embodiments of the present disclosure provide a photovoltaic power generation control system to solve the problem of poor stability of the photovoltaic power generation system in the existing technology.

[0004] Embodiments of the present disclosure provide a photovoltaic power generation control system, including:

[0005] A photovoltaic power generation module, a light sensor, a first single-pole double-throw switch, a first voltage compensation module, an inverter, a control module, and an energy storage module;

[0006] The photovoltaic power generation module is respectively connected to the moving end of the first single-pole double-throw switch and the energy storage module;

[0007] The first fixed end of the first single-pole double-throw switch is connected to the first voltage compensation module, the second fixed end of the first single-pole double-throw switch is connected to the inverter, the first voltage compensation module is connected to the inverter, and the inverter is connected to the external power grid;

[0008] The light sensor, the first single-pole double-throw switch, and the energy storage module are all connected to the control module;

[0009] The photovoltaic power generation module is configured to convert solar energy into electrical energy and transmit the electrical energy to the power grid; the photovoltaic power generation module is also configured to supply power to the energy storage module;

[0010] The control module is configured to control the working state of the first single-pole double-throw switch according to the light intensity data collected by the light sensor.

[0011] In an exemplary embodiment of the present disclosure, the first voltage compensation module includes:

[0012] A first switch unit, a first compensation unit, a second switch unit, and a second compensation unit;

[0013] The first switching unit and the second switching unit are both connected to the first fixed terminal of the first single-pole double-throw switch;

[0014] The first compensation unit is respectively connected to the first switching unit and the external power grid; the second compensation unit is respectively connected to the second switching unit and the external power grid;

[0015] The first switching unit and the second switching unit are also both connected to the control module.

[0016] In an exemplary embodiment of the present disclosure, the photovoltaic power generation module includes:

[0017] A first photovoltaic unit and a second photovoltaic unit;

[0018] The first photovoltaic unit is connected to the moving terminal of the first single-pole double-throw switch, and the second photovoltaic unit is connected to the energy storage module.

[0019] In an exemplary embodiment of the present disclosure, the photovoltaic power generation control system further includes:

[0020] A third switching unit and a fourth switching unit;

[0021] The third switching unit is respectively connected to the second photovoltaic unit and the energy storage module, and the fourth switching unit is respectively connected to the first photovoltaic unit and the moving terminal of the first single-pole double-throw switch;

[0022] The control module is configured to control the working states of the third switching unit and the fourth switching unit according to the light intensity data sent by the light sensor.

[0023] In an exemplary embodiment of the present disclosure, the photovoltaic power generation control system further includes:

[0024] A voltage detection module, a second single-pole double-throw switch, and a second voltage compensation module;

[0025] The voltage detection module and the moving terminal of the second single-pole double-throw switch are both connected to the energy storage module, and the voltage detection module and the moving terminal of the second single-pole double-throw switch are both connected to the control module;

[0026] The first fixed terminal of the second single-pole double-throw switch is connected to the second voltage compensation module, and the second voltage compensation module and the second fixed terminal of the second single-pole double-throw switch are both connected to the inverter;

[0027] The control module is further configured to control the working state of the second single-pole double-throw switch according to the voltage data sent by the voltage detection module.

[0028] In an exemplary embodiment of the present disclosure, the photovoltaic power generation control system further includes:

[0029] A filter circuit;

[0030] The filter circuit is respectively connected to the photovoltaic power generation module and the single-pole double-throw switch.

[0031] In an exemplary embodiment of the present disclosure, the photovoltaic power generation control system further includes:

[0032] A communication module and a storage module;

[0033] The storage module is respectively connected to the control module and the communication module;

[0034] The storage module is configured to store the data received by the control module, and the communication module is configured to send the data stored in the storage module to the mobile terminal.

[0035] In an exemplary embodiment of the present disclosure, the photovoltaic power generation control system further includes:

[0036] An alarm module;

[0037] The alarm module is connected to the control module and is configured to emit a warning signal when the control module detects abnormal data.

[0038] The beneficial effects of a photovoltaic power generation control system provided by an embodiment of the present disclosure are as follows:

[0039] On the one hand, the present disclosure can improve energy utilization efficiency:

[0040] The present disclosure can intelligently control the working state of the first single-pole double-throw switch according to the real-time light intensity. When the light is sufficient, the electric energy is directly transmitted to the inverter and supplied to the power grid, realizing efficient power generation and rapid power supply. When the light is weak, it is connected to the voltage compensation module through the switch, and the electric energy is optimized and then supplied to the power grid after processing, ensuring that the generated electric energy can be fully utilized under various light conditions and avoiding energy waste. In addition, the photovoltaic power generation module can also charge the energy storage module, realizing the storage and flexible allocation of electric energy, and improving the comprehensive utilization efficiency of energy.

[0041] On the other hand, the present disclosure can improve the stability and reliability of the system:

[0042] The first voltage compensation module provided by the present disclosure effectively solves the problem of unstable output voltage of the photovoltaic power generation module. At the same time, the control module performs precise control according to the data of the light sensor, avoiding the errors and delays of manual operation, and improving the reliability and response speed of the system. Description of the Drawings

[0043] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the accompanying drawings required for use in the embodiments or the description of the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0044] Figure 1 It is a schematic structural diagram of a photovoltaic power generation control system provided by an embodiment of the present disclosure;

[0045] Figure 2 It is a schematic structural diagram of a photovoltaic power generation control system provided by another embodiment of the present disclosure;

[0046] Figure 3 It is a schematic structural diagram of a photovoltaic power generation control system provided by still another embodiment of the present disclosure. Specific embodiments

[0047] To enable those skilled in the art to better understand this solution, the following will clearly describe the technical solutions in the embodiments of this solution in conjunction with the accompanying drawings in the embodiments of this solution. Obviously, the described embodiments are some, rather than all, of the embodiments of this solution. Based on the embodiments in this solution, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this solution.

[0048] The term "including" in the specification, claims, and the above accompanying drawings of this solution, as well as any other variations, means "including but not limited to", and is intended to cover non-exclusive inclusion, not limited to the examples listed in the text. In addition, terms such as "first" and "second" are used to distinguish different objects, rather than to describe a specific order.

[0049] The following will describe the implementation of the present disclosure in detail in conjunction with specific accompanying drawings:

[0050] Figure 1 It is a schematic structural diagram of a photovoltaic power generation control system provided by an embodiment of the present disclosure. Referring to Figure 1 , this photovoltaic power generation control system includes:

[0051] A photovoltaic power generation module 11, a light sensor 12, a first single-pole double-throw switch 13, a first voltage compensation module 14, an inverter 15, a control module 16, and an energy storage module 17;

[0052] The photovoltaic power generation module 11 is respectively connected to the moving end of the first single-pole double-throw switch 13 and the energy storage module 17;

[0053] The first fixed terminal of the first single-pole double-throw switch 13 is connected to the first voltage compensation module 14, the second fixed terminal of the first single-pole double-throw switch 13 is connected to the inverter 15, the first voltage compensation module 14 is connected to the inverter 15, and the inverter 15 is connected to the external power grid;

[0054] The light sensor 12, the first single-pole double-throw switch 13, and the energy storage module 17 are all connected to the control module 16;

[0055] The photovoltaic power generation module 11 is configured to convert solar energy into electrical energy and transmit the electrical energy to the power grid; the photovoltaic power generation module 11 is also configured to supply power to the energy storage module 17;

[0056] The control module 16 is configured to control the working state of the first single-pole double-throw switch 13 according to the light intensity data collected by the light sensor 12.

[0057] In this embodiment, first, the photovoltaic power generation module 11 converts solar energy into electrical energy. On the one hand, it transmits the generated electrical energy to the power grid to achieve external power supply; on the other hand, it also supplies power to the energy storage module 17 to prepare for energy storage. The light sensor 12 collects light intensity data in real time and transmits these light intensity data to the control module 16. After receiving the light intensity data, the control module 16 controls the working state of the first single-pole double-throw switch 13 according to these data.

[0058] When the light intensity is strong and the generated electrical energy is sufficient, the control module 16 may control the first single-pole double-throw switch 13 to be connected to the inverter 15. At this time, the electrical energy generated by the photovoltaic power generation module 11 is transmitted to the inverter 15 through the first single-pole double-throw switch 13 and then transmitted to the external power grid after being processed by the inverter 15. The inverter 15 is an electronic device that converts direct current into alternating current. In a photovoltaic power generation system, since the photovoltaic power generation module 11 generates direct current, and most power grids and electrical equipment require alternating current to work properly, the inverter 15 can convert the direct current into alternating current that meets the power grid standards and the requirements of electrical equipment.

[0059] When the light intensity is weak and the generated electrical energy is not enough to directly supply the power grid or there are other special situations, the control module 16 may control the first single-pole double-throw switch 13 to be connected to the first voltage compensation module 14. The first voltage compensation module can be a transformer bank. The first voltage compensation module 14 compensates the electrical energy, and the processed electrical energy is then transmitted to the external power grid through the inverter 15. By compensating the voltage, the first voltage compensation module 14 can improve the efficiency and reliability of the photovoltaic power generation system, reduce the impact of voltage fluctuations on the inverter 15 and other devices, and also helps to protect the energy storage module 17 and extend its service life.

[0060] Meanwhile, when the light intensity is strong, the electric energy generated by the photovoltaic power generation module 11 may be surplus. At this time, in addition to supplying power to the power grid, the photovoltaic power generation module 11 can also supply power to the energy storage module 17.

[0061] For example, at noon when the sun is strong, the control module 16 may connect the first single-pole double-throw switch 13 to the inverter 15, allowing a large amount of electric energy to be smoothly transmitted to the power grid. When the light is weak in the evening, the first single-pole double-throw switch 13 may switch to the voltage compensation module to ensure the stable output of electric energy. Another example is that when the load of the power grid suddenly increases, the control module 16 can also flexibly adjust the state of the first single-pole double-throw switch 13 according to the actual situation to ensure the stable operation of the entire system.

[0062] It can be concluded from the above that, on the one hand, the present disclosure can improve the energy utilization rate:

[0063] The present disclosure can intelligently control the working state of the first single-pole double-throw switch 13 according to the real-time light intensity. When the light is sufficient, the electric energy is directly transmitted to the inverter 15 and supplied to the power grid, realizing efficient power generation and rapid power supply. When the light is weak, by switching the switch to connect to the voltage compensation module, the electric energy is optimized and then supplied to the power grid, ensuring that the generated electric energy can be fully utilized under various light conditions and avoiding energy waste. In addition, the photovoltaic power generation module 11 can also charge the energy storage module 17, realizing the storage and flexible allocation of electric energy and improving the comprehensive utilization efficiency of energy.

[0064] On the other hand, the present disclosure can improve the stability and reliability of the system:

[0065] The first voltage compensation module 14 provided in the present disclosure effectively solves the problem of unstable output voltage of the photovoltaic power generation module 11. At the same time, the control module 16 performs precise control according to the data of the light sensor 12, avoiding the errors and delays of manual operation, and improving the reliability and response speed of the system.

[0066] In an embodiment of the present disclosure, referring to Figure 2 , the first voltage compensation module 14 includes:

[0067] A first switch unit 141, a first compensation unit 142, a second switch unit 143 and a second compensation unit 144;

[0068] Both the first switch unit 141 and the second switch unit 143 are connected to the first fixed end of the first single-pole double-throw switch 13;

[0069] The first compensation unit 142 is respectively connected to the first switch unit 141 and the external power grid; the second compensation unit 144 is respectively connected to the second switch unit 143 and the external power grid;

[0070] The first switching unit 141 and the second switching unit 143 are also both connected to the control module 16.

[0071] In this embodiment, the voltage ranges compensated by the first compensation unit 142 and the second compensation unit 144 are different. The first compensation unit 142 focuses on precisely compensating for lower voltage deviations, and the voltage compensation range is the first range. The second compensation unit 144 focuses on compensating for larger voltage deviations, and the voltage compensation range is the second range. Among them, the voltage values within the first range are smaller than those within the second range.

[0072] For example, the rated voltage output by the photovoltaic power generation module 11 is 40V. The voltage range that the first compensation unit 142 can compensate is 1 - 5V, and the voltage range that the second compensation unit 144 can compensate is 6 - 10V. When the output voltage of the photovoltaic power generation module 11 is small due to weak light intensity, the first compensation unit 142 or the second compensation unit 144 can be selected to compensate the voltage. When the control module 16 determines that the first compensation unit 142 is needed to compensate the voltage, the first switching unit 141 is controlled to close, and the second switching unit 143 is controlled to open, so that the first compensation unit 142 performs voltage compensation. When the control module 16 determines that the second compensation unit 144 is needed to compensate the voltage, the first switching unit 141 is controlled to open, and the second switching unit 143 is controlled to close, so that the second compensation unit 144 performs voltage compensation.

[0073] From the above, it can be concluded that setting the first compensation unit 142 and the second compensation unit 144 can accurately cope with voltage deviations of different amplitudes. When the voltage deviation is small, the first compensation unit 142 performs precise compensation, saving resources; when the deviation is large, the second compensation unit 144 plays a role to ensure the stability of the system. This hierarchical compensation improves the compensation efficiency and accuracy, reduces unnecessary energy consumption, enhances the system's ability to cope with complex voltage changes, and ensures power quality and stable output.

[0074] In an embodiment of the present disclosure, referring to Figure 2 , the photovoltaic power generation module 11 includes:

[0075] A first photovoltaic unit 101 and a second photovoltaic unit 102;

[0076] The first photovoltaic unit 101 is connected to the moving end of the first single-pole double-throw switch 13, and the second photovoltaic unit 102 is connected to the energy storage module 17.

[0077] In this embodiment, the photovoltaic power generation module 11 includes a first photovoltaic unit 101 and a second photovoltaic unit 102. The first photovoltaic unit 101 is mainly responsible for transmitting the generated electric energy through the first single-pole double-throw switch 13, and may be more focused on supplying power to the power grid. The second photovoltaic unit 102 is connected to the energy storage module 17 and can charge the energy storage module 17 to achieve the storage of electric energy.

[0078] It can be concluded from the above that the present disclosure realizes the efficient distribution and utilization of electric energy by setting the first photovoltaic unit 101 and the second photovoltaic unit 102. The first photovoltaic unit 101 supplies power to the power grid to ensure immediate power supply; the second photovoltaic unit 102 charges the energy storage module 17 for convenient storage of electric energy for backup.

[0079] In an embodiment of the present disclosure, referring to Figure 2 , the photovoltaic power generation control system further includes:

[0080] A third switch unit 121 and a fourth switch unit 122;

[0081] The third switch unit 121 is respectively connected to the second photovoltaic unit 102 and the energy storage module 17, and the fourth switch unit 122 is respectively connected to the first photovoltaic unit 101 and the moving end of the first single-pole double-throw switch 13;

[0082] The control module 16 is configured to control the working states of the third switch unit 121 and the fourth switch unit 122 according to the light intensity data sent by the light sensor 12.

[0083] In this embodiment, the photovoltaic power generation module 11 can convert light energy into direct current, and the direct current is converted into alternating current through the inverter 15 to supply power to the power grid or other loads. The control module 16 can control the working states of the third switch unit 121 and the fourth switch unit 122 according to the light intensity data sent by the light sensor 12. When the light intensity is weak, the third switch unit 121 is disconnected and the fourth switch unit 122 is closed, and the electric energy generated by the first photovoltaic unit 101 is supplied to the power grid. When the light intensity is strong and the power grid demand is large, the fourth switch unit 122 is closed and the third switch unit 121 is closed, and the electric energy generated by the second photovoltaic unit 102 can be supplied to the energy storage module 17.

[0084] It can be concluded from the above that the present disclosure can flexibly allocate electric energy according to the light intensity, improve the energy utilization efficiency; ensure stable power supply when the light intensity changes, enhance the system adaptability; realize the optimization of electric energy storage and supply, reduce waste; protect the equipment, reduce the failure risk, and improve the reliability and stability of the system.

[0085] In an embodiment of the present disclosure, referring to Figure 3 , the photovoltaic power generation control system further includes:

[0086] A voltage detection module 18, a second single-pole double-throw switch 19, and a second voltage compensation module 20;

[0087] Both the moving terminals of the voltage detection module 18 and the second single-pole double-throw switch 19 are connected to the energy storage module 17, and both the moving terminals of the voltage detection module 18 and the second single-pole double-throw switch 19 are connected to the control module 16;

[0088] The first fixed terminal of the second single-pole double-throw switch 19 is connected to the second voltage compensation module 20, and both the second voltage compensation module 20 and the second fixed terminal of the second single-pole double-throw switch 19 are connected to the inverter 15;

[0089] The control module 16 is further configured to control the working state of the second single-pole double-throw switch 19 according to the voltage data sent by the voltage detection module 18.

[0090] In this embodiment, the voltage detection module 18 monitors the voltage of the energy storage module 17 in real time and sends the voltage data to the control module 16. The control module 16 judges the power state of the energy storage module 17 according to the received voltage data. When the voltage of the energy storage module 17 is lower than the set lower limit value, the control module 16 controls the second single-pole double-throw switch 19 to switch to the first fixed terminal, so that the second voltage compensation module 20 is connected to the energy storage module 17 to charge the energy storage module 17 to increase the voltage. When the voltage of the energy storage module 17 reaches the set upper limit value, the control module 16 controls the second single-pole double-throw switch 19 to switch to the second fixed terminal, so that the inverter 15 is connected to the energy storage module 17, and the electric energy in the energy storage module 17 is inverted and supplied to the power grid.

[0091] It can be concluded from the above that the present disclosure can realize the regulation of the voltage of the energy storage module 17 by controlling the working state of the second single-pole double-throw switch 19, and ensure the stable power supply of the photovoltaic power generation system.

[0092] In an embodiment of the present disclosure, referring to Figure 3 , the photovoltaic power generation control system further includes:

[0093] A filter circuit 21;

[0094] The filter circuit 21 is respectively connected to the photovoltaic power generation module 11 and the single-pole double-throw switch.

[0095] In this embodiment, the filter circuit 21 is arranged between the photovoltaic power generation module 11 and the single-pole double-throw switch. The filter circuit 21 can reduce the pulsation of the output voltage of the photovoltaic cell, improve the power quality, and protect the subsequent circuits and devices. Specifically, the filter circuit 21 can reduce the ripple coefficient, make the output voltage more stable, and reduce the interference to the power grid; it can also prevent harmonic distortion and improve the efficiency and reliability of the system.

[0096] In an embodiment of the present disclosure, referring toFigure 3 , the photovoltaic power generation control system further includes:

[0097] a communication module 22 and a storage module 23;

[0098] The storage module 23 is respectively connected to the control module 16 and the communication module 22;

[0099] The storage module 23 is configured to store the data received by the control module 16, and the communication module 22 is configured to send the data stored in the storage module 23 to the mobile terminal.

[0100] In this embodiment, the control module 16 can receive data from various sensors, such as light intensity data, voltage data, etc. These data are transmitted and stored in the storage module 23 in real time. The storage module 23 can save and manage these data to form data records. The communication module 22 is connected to the storage module 23 and can read the data saved in the storage module 23 regularly or according to set conditions. Then, the communication module 22 sends these data to the mobile terminal through wireless network or other communication methods. In this way, users can view the operation data of the photovoltaic power generation control system at any time through the mobile terminal, realizing remote monitoring and management of the system.

[0101] It can be concluded from the above that the present disclosure sends the data in the storage module 23 to the mobile terminal through the communication module 22, enabling users to understand the system operation status at any time and anywhere. The present disclosure also helps users to discover problems in time and handle them, optimizing the maintenance efficiency.

[0102] In an embodiment of the present disclosure, referring to Figure 3 , the photovoltaic power generation control system further includes:

[0103] an alarm module 24;

[0104] The alarm module 24 is connected to the control module 16 and is configured to issue a warning signal when the control module 16 detects data anomalies.

[0105] In this embodiment, the alarm module 24 is connected to the control module 16. When the control module 16 detects anomalies in the relevant data in the photovoltaic power generation control system, such as too high or too low voltage, abnormal current, sudden change in light intensity, etc., the alarm module 24 will be immediately triggered. The alarm module 24 can issue a warning signal in various ways, such as sound alarm, light flashing, SMS notification, or pushing alarm information to a specified terminal device, etc. Its purpose is to timely remind relevant personnel to pay attention to system failures or potential risks, so that they can quickly take measures to handle them and ensure the safe and stable operation of the system.

[0106] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. A photovoltaic power generation control system, characterized in that: include: Photovoltaic power generation module, light sensor, first single-pole double-throw switch, first voltage compensation module, inverter, control module and energy storage module; The photovoltaic power generation module is respectively connected to the moving end of the first single-pole double-throw switch and the energy storage module; The first fixed end of the first single-pole double-throw switch is connected to the first voltage compensation module, the second fixed end of the first single-pole double-throw switch is connected to the inverter, the first voltage compensation module is connected to the inverter, and the inverter is connected to an external power grid; The light sensor, the first single-pole double-throw switch, and the energy storage module are all connected to the control module; The photovoltaic power generation module is configured to convert solar energy into electrical energy and transmit the electrical energy to the power grid; the photovoltaic power generation module is also configured to supply power to the energy storage module; The control module is configured to control the working state of the first single-pole double-throw switch according to the light intensity data collected by the light sensor.

2. The photovoltaic power generation control system according to claim 1, characterized in that: The first voltage compensation module comprises: A first switch unit, a first compensation unit, a second switch unit, and a second compensation unit; The first switch unit and the second switch unit are both connected to the first fixed end of the first single-pole double-throw switch; The first compensation unit is connected to the first switch unit and the external power grid respectively; the second compensation unit is connected to the second switch unit and the external power grid respectively; The first switch unit and the second switch unit are also connected to the control module.

3. The photovoltaic power generation control system according to claim 1, characterized in that: The photovoltaic power generation module comprises: a first photovoltaic unit and a second photovoltaic unit; The first photovoltaic unit is connected to the moving end of the first single-pole double-throw switch, and the second photovoltaic unit is connected to the energy storage module.

4. The photovoltaic power generation control system according to claim 3, characterized in that: Also includes: a third switch unit and a fourth switch unit; The third switch unit is connected to the second photovoltaic unit and the energy storage module respectively, and the fourth switch unit is connected to the first photovoltaic unit and the moving end of the first single-pole double-throw switch respectively; The control module is configured to control the working states of the third switch unit and the fourth switch unit according to the light intensity data sent by the light sensor.

5. The photovoltaic power generation control system according to claim 1, characterized in that: Also includes: A voltage detection module, a second single-pole double-throw switch and a second voltage compensation module; The voltage detection module and the moving end of the second single-pole double-throw switch are both connected to the energy storage module, and the voltage detection module and the moving end of the second single-pole double-throw switch are both connected to the control module; The first fixed end of the second single-pole double-throw switch is connected to the second voltage compensation module, and the second voltage compensation module and the second fixed end of the second single-pole double-throw switch are both connected to the inverter; The control module is further configured to control the working state of the second single-pole double-throw switch according to the voltage data sent by the voltage detection module.

6. The photovoltaic power generation control system according to claim 1, characterized in that: Also includes: Filter circuit; The filter circuit is connected to the photovoltaic power generation module and the single-pole double-throw switch respectively.

7. The photovoltaic power generation control system according to claim 1, characterized in that: Also includes: Communication module and storage module; The storage module is connected to the control module and the communication module respectively; The storage module is configured to store the data received by the control module, and the communication module is configured to send the data stored in the storage module to the mobile phone terminal.

8. The photovoltaic power generation control system according to claim 1, characterized in that: Also includes: Alarm module; The alarm module is connected to the control module and is configured to send out an early warning signal when the control module detects data abnormality.

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