Photovoltaic power generation system

Abstract

The utility model provides a photovoltaic power generation system, comprising a photovoltaic power generation device; the monitoring equipment is used for monitoring the photovoltaic power generation equipment, the monitoring equipment comprises a data processing chip, the data processing chip is integrated with a communication unit and a data processing unit, the communication unit is used for being connected to the photovoltaic power generation equipment so as to receive data signals of the photovoltaic power generation equipment, and the data processing unit is used for processing the data signals of the photovoltaic power generation equipment; the data processing unit is used for processing the data signal to generate monitoring data; and the upper computer is connected to the data processing unit and is used for monitoring the photovoltaic power generation equipment according to the monitoring data. According to the photovoltaic power generation system provided by the utility model, the data processing chip of the monitoring equipment is integrated with the communication unit and the data processing unit, so that two different chips do not need to be respectively arranged for data transmission and data processing, data does not need to be transmitted between the two chips, the cost of the photovoltaic power generation system can be reduced, and the cost of the photovoltaic power generation system is reduced. And the data processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and particularly to a photovoltaic power generation system. Background Art

[0002] In the related art, in a photovoltaic power generation system, photovoltaic power generation equipment is monitored by monitoring equipment, so as to obtain parameters such as the fault condition and power generation amount of the photovoltaic power generation equipment, and then the photovoltaic power generation equipment is adaptively adjusted according to the parameters such as the fault condition and power generation amount of the photovoltaic power generation equipment.

[0003] Specifically, the monitoring equipment usually uses a power line carrier communication chip and a data processing chip to realize data transmission and data processing between the monitoring equipment and the photovoltaic power generation equipment. However, the use of two chips will increase the cost of the photovoltaic power generation system, and the data needs to be transmitted between the two chips, resulting in a decrease in the efficiency of data processing. Summary of the Utility Model

[0004] The utility model aims to at least solve the technical problem of the relatively high cost of the photovoltaic power generation system in the prior art.

[0005] For this purpose, the utility model provides a photovoltaic power generation system.

[0006] A first aspect of the utility model provides a photovoltaic power generation system, comprising: photovoltaic power generation equipment; monitoring equipment, which is used to monitor the photovoltaic power generation equipment, and the monitoring equipment includes a data processing chip, and the data processing chip is integrated with a communication unit and a data processing unit, wherein the communication unit is used to connect to the photovoltaic power generation equipment to receive the data signal of the photovoltaic power generation equipment, and the data processing unit is used to process the data signal to generate monitoring data; a host computer, which is connected to the data processing unit and is used to monitor the photovoltaic power generation equipment according to the monitoring data.

[0007] The photovoltaic power generation system provided by the utility model includes photovoltaic power generation equipment and monitoring equipment, wherein the photovoltaic power generation equipment is used to convert light energy into electrical energy to realize the power generation function. The monitoring equipment can be used to monitor the photovoltaic power generation equipment. Specifically, during the actual operation of the photovoltaic power generation equipment, faults or a decrease in power generation may occur due to phenomena such as shadow, fallen leaves or bird droppings blocking, hot spots, and inconsistent orientations. Through the monitoring equipment, the fault condition or the decrease in power generation of the photovoltaic power generation equipment can be monitored, so as to adjust the operating parameters of the photovoltaic power generation equipment for the faults or the decrease in power generation of the photovoltaic power generation equipment.

[0008] Specifically, in a distributed photovoltaic power generation device, which includes multiple photovoltaic panels connected in series, when one of the photovoltaic panels fails, its power generation will decrease. At the same time, since the other photovoltaic panels are connected in series with it, when the power generation of one photovoltaic panel decreases due to a failure, the electrical energy it transmits decreases, and at the same time, it causes the electrical energy that the other photovoltaic panels connected in series with it can transmit to also decrease accordingly, thereby resulting in a reduction in the power generation of the photovoltaic power generation device. By using a monitoring device to increase the electrical energy transmitted by the photovoltaic panel with decreased power generation, specifically, the current that it can transmit can be increased, so that when the power generation of one photovoltaic panel decreases, it will not affect the power generation of other photovoltaic panels, thereby reducing the loss of electrical energy.

[0009] Furthermore, the monitoring device includes a data processing chip and a host computer. The data processing chip is used for establishing a communication connection with the photovoltaic power generation device, so as to collect the operating parameters during the operation of the photovoltaic power generation device. That is, the operating parameters during the operation of the photovoltaic power generation device can be sent to the data processing chip through data signals, and the data processing chip processes the received data signals to generate monitoring data.

[0010] Specifically, the data processing chip integrates a communication unit and a data processing unit. The communication unit is used for communicating with the photovoltaic power generation device to receive the data signals of the photovoltaic power generation device. The data processing unit is connected to the communication unit, so that the data signals received by the communication unit can be transmitted to the data processing unit, and the data processing unit processes the data signals to generate monitoring data.

[0011] Furthermore, the data processing unit is also connected to the host computer, so that the data processing unit can transmit the monitoring data to the host computer for the host computer to monitor the photovoltaic power generation device according to the monitoring data. At the same time, in the case where the monitoring data is abnormal, the host computer generates corresponding control instructions. The data processing unit can also receive the control instructions sent by the host computer, and process the control instructions to generate control signals, and then transmit the control signals to the photovoltaic power generation device through the communication unit to adjust the operating parameters of the photovoltaic power generation device.

[0012] It can be understood that the data processing chip integrates a communication unit and a data processing unit. That is, through the data processing chip, the transmission and processing of data can be achieved, so there is no need to separately set two different chips for data transmission and data processing, thereby reducing the cost of the photovoltaic power generation system. And for the data signals of the photovoltaic power generation device received, there is no need to transmit them between two chips, thus improving the efficiency of data processing.

[0013] The photovoltaic power generation system provided by the present utility model includes a photovoltaic power generation device and a monitoring device. Among them, the monitoring device realizes the reception and processing of the data signals of the photovoltaic power generation device through a data processing chip, thereby generating monitoring data. At the same time, by connecting the upper computer to the data processing chip, the monitoring of the photovoltaic power generation device can be realized according to the monitoring data. If there is an abnormality in the monitoring data, the upper computer can also generate corresponding control instructions according to the abnormal monitoring data, and then process the control instructions through the data processing chip to generate a control signal and transmit it to the photovoltaic power generation device to realize the adjustment of the photovoltaic power generation device. Moreover, the data processing chip integrates a communication unit and a data processing unit, so there is no need to set two different chips for data transmission and data processing respectively, nor is it necessary to transmit data between the two chips, thereby reducing the cost of the photovoltaic power generation system and improving the efficiency of data processing.

[0014] In addition, according to the photovoltaic power generation system in the above technical solution provided by the present utility model, it may further have the following additional technical features:

[0015] In some technical solutions, optionally, the communication unit includes: a power line carrier communication unit, and the power line carrier communication unit is used to connect to the transmission cable of the photovoltaic power generation device to transmit data signals and control signals through the transmission cable.

[0016] In this technical solution, the communication unit of the data processing chip can be a power line carrier communication unit, so that the transmission of data signals and monitoring signals can be realized through the power line carrier communication method.

[0017] Specifically, power line carrier communication is a communication technology that uses power lines as the transmission medium, that is, uses the transmission cable of the photovoltaic power generation device to transmit data signals and monitoring signals. Through the power line carrier communication unit, a high-frequency signal can be superimposed on the transmission cable, enabling the transmission cable to have the ability to transmit data, thereby achieving the purpose of data communication on the transmission cable.

[0018] By setting the communication unit as a power line carrier communication unit, the transmission of data can be realized by using the transmission cable of the photovoltaic power generation device, thereby effectively reducing the cost of data transmission. Moreover, the power line carrier communication process also has the advantages of long transmission distance, stable signal transmission, and wide coverage.

[0019] In some technical solutions, optionally, the photovoltaic power generation system further includes: an annular magnetic member, and the annular magnetic member is used to sleeved on the transmission cable, and the annular magnetic member is connected to the power line carrier communication unit.

[0020] In this technical solution, the monitoring device may include an annular magnetic component. The annular magnetic component is connected to the power line carrier communication unit, and the annular magnetic component is sleeved on the transmission cable of the photovoltaic power generation device.

[0021] It can be understood that when a data signal is superimposed on the transmission cable of the photovoltaic power generation device, when the data signal passes through the annular magnetic component, the data signal acts on the magnetic field of the annular magnetic component, causing the annular magnetic component to generate a corresponding data signal, and the data signal is received through the power line carrier communication unit.

[0022] At the same time, when the power line carrier communication unit transmits a control signal, the control signal is transmitted to the annular magnetic component, and the magnetic field of the annular magnetic component changes, so that the control signal is superimposed on the transmission cable, thereby realizing the transmission of the control signal to the photovoltaic power generation device through the transmission cable.

[0023] In some technical solutions, optionally, the photovoltaic power generation device includes a plurality of photovoltaic panels and a plurality of transmission cables. The plurality of photovoltaic panels and the plurality of transmission cables are connected in one-to-one correspondence, and the annular magnetic component is sleeved on at least two transmission cables.

[0024] In this technical solution, the photovoltaic power generation device may include a plurality of photovoltaic panels. The photovoltaic panels can specifically be used to convert light energy into electrical energy under the irradiation of light, thereby realizing photovoltaic power generation. Further, each photovoltaic panel is correspondingly connected to a transmission cable, so as to realize the transmission of the electrical energy generated by the photovoltaic panel through the corresponding transmission cable respectively.

[0025] Further, the annular magnetic component can be sleeved on at least two transmission cables. That is, by sleeving the annular magnetic component on at least two transmission cables at the same time, it is possible to realize the transmission of data signals and control signals with at least two photovoltaic panels at the same time, thereby improving the data transmission efficiency and reducing the cost of the photovoltaic power generation system.

[0026] In addition, it should be noted that the maximum number of transmission cables that the annular magnetic component can be connected to can be set to 4. That is, an annular magnetic component can be sleeved on at most 4 transmission cables, so as to ensure the stability of data transmission and avoid the influence between multiple data signals or control signals of multiple transmission cables.

[0027] In some technical solutions, optionally, the data processing chip further includes: a reset unit, connected to the data processing unit. The reset unit is used to generate a reset instruction, and the reset instruction is used to instruct the photovoltaic power generation device to perform a reset.

[0028] In this technical solution, the data processing chip further includes a reset unit, which is used to generate a reset instruction. Specifically, the reset unit can be set as a switch. The staff can operate the switch to generate a reset signal, which can be used to indicate the reset of the photovoltaic power generation device.

[0029] Specifically, the reset unit is connected to the data processing unit. When an operator operates the reset unit, the reset unit generates a reset instruction. After the data processing unit receives the reset instruction, it can process the reset instruction to generate a reset signal, and then transmit the reset signal to the photovoltaic power generation device through the communication unit, so that the photovoltaic power generation device can be reset according to the reset signal.

[0030] In some technical solutions, optionally, the data processing chip further includes an arc fault breaker, which is connected to the communication unit. The arc fault breaker is used to connect to the photovoltaic power generation device and generate a shutdown signal in the case of detecting an arc fault signal. The shutdown signal is used to indicate the photovoltaic power generation device to stop operating.

[0031] In this technical solution, the data processing chip is also integrated with an arc fault breaker. Through the arc fault breaker, the arc fault signal of the photovoltaic power generation device can be received. That is, when the arc fault breaker receives the arc fault signal of the photovoltaic power generation device, it can be determined that the photovoltaic power generation device may have a short - circuit fault. At this time, the operation of the photovoltaic power generation device can be controlled in time to avoid losses caused by the short - circuit fire of the photovoltaic power generation device.

[0032] Specifically, the arc fault breaker is connected to the photovoltaic power generation device to receive the arc fault signal in time when the photovoltaic power generation device generates an arc fault signal. At the same time, the arc fault breaker is also connected to the communication unit, so that when it receives the arc fault signal, it can send a shutdown signal to the photovoltaic power generation device through the communication unit in time.

[0033] In some technical solutions, optionally, the monitoring device further includes an interaction device. One end of the interaction device is connected to the data processing unit, and the other end is connected to the upper computer. The interaction device is used for data interaction between the upper computer and the data processing unit.

[0034] In this technical solution, the monitoring device can also include an interaction device. Through the interaction device, data interaction between the data processing unit of the data processing chip and the upper computer can be realized.

[0035] In some technical solutions, optionally, the photovoltaic power generation device includes: a controller communicatively connected to a communication unit; an inverter, the inverter being connected to the controller through a transmission cable; wherein, the controller is configured to receive a control signal sent by the communication unit and control the operation of the inverter according to the control signal.

[0036] In this technical solution, the photovoltaic power generation device includes a controller and an inverter. Among them, the controller is used to control the inverter. Specifically, during the operation of the photovoltaic power generation device, the controller can control the operation parameters of the inverter to achieve the control of the output power of the photovoltaic power generation device. Specifically, the controller and the inverter can be connected through a transmission cable.

[0037] Furthermore, the monitoring device is connected to the transmission cable between the controller and the inverter, so as to realize the transmission of data signals and control signals through the transmission cable. Specifically, when the monitoring device sends a control signal, the controller receives the control signal through the transmission cable, and then the controller controls the operation parameters of the inverter according to the control signal.

[0038] In some technical solutions, optionally, the inverter is connected to the arc fault disconnector of the data processing chip.

[0039] In this technical solution, the inverter of the photovoltaic power generation device is connected to the arc fault disconnector of the data processing chip, so as to transmit the arc fault signal to the arc fault disconnector of the data processing chip when an arc fault signal is generated.

[0040] It can be understood that during the operation of the photovoltaic power generation device, if a short circuit fault occurs, the inverter will generate an arc fault signal. At this time, the inverter is connected to the arc fault disconnector of the data processing chip, so that the inverter can timely transmit the arc fault signal to the arc fault disconnector and send a turn-off signal to the inverter in time, thereby avoiding losses caused by short circuit of the photovoltaic power generation device.

[0041] In some technical solutions, optionally, the number of inverters is multiple, and the number of arc fault disconnectors is multiple, and the multiple inverters and the multiple arc fault disconnectors are connected in one-to-one correspondence.

[0042] In this technical solution, the number of inverters and arc fault disconnectors can both be multiple, and multiple inverters and multiple arc fault disconnectors are connected in one-to-one correspondence. It can be understood that in a photovoltaic power generation system, there can be multiple photovoltaic panels. Correspondingly, each photovoltaic panel is connected to one inverter, or each inverter is connected to a certain number of photovoltaic panels, so as to output the electric energy converted by the photovoltaic panels through the inverter. Correspondingly, the number of arc fault disconnectors is the same as that of the inverters and is arranged in one-to-one correspondence with the inverters, so that each inverter can timely transmit the arc fault signal to the corresponding arc fault disconnector and send a shutdown signal to the inverter in time, thereby avoiding losses caused by short circuits in the photovoltaic power generation equipment.

[0043] The additional aspects and advantages of the present utility model will become apparent in the following description section, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0045] Figure 1 FIG. 1 shows one of the schematic structural diagrams of the photovoltaic power generation system provided by the embodiment of the present utility model;

[0046] Figure 2 FIG. 2 shows another schematic structural diagram of the photovoltaic power generation system provided by the embodiment of the present utility model.

[0047] Wherein, Figure 1 and Figure 2 the corresponding relationship between the reference numerals and the component names in FIGS. 1 and 2 is as follows:

[0048] 100 monitoring device, 102 data processing chip, 104 communication unit, 106 data processing unit, 108 host computer, 110 annular magnetic member, 112 reset unit, 114 arc fault disconnector, 116 interaction device, 200 photovoltaic power generation system, 202 photovoltaic power generation equipment, 204 transmission cable, 206 controller, 208 inverter. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0049] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described in detail below in conjunction with the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0050] In the following description, numerous specific details are set forth to provide a thorough understanding of the present utility model. However, the present utility model may be practiced in other ways different from those described herein. Therefore, the scope of protection of the present utility model is not limited by the specific embodiments disclosed below.

[0051] Reference will now be made to Figure 1 and Figure 2 to describe a photovoltaic power generation system according to some embodiments of the present utility model.

[0052] The present utility model provides a photovoltaic power generation system 200, as Figure 1 and Figure 2 shown. The photovoltaic power generation system 200 includes: a photovoltaic power generation device 202; a monitoring device 100 for monitoring the photovoltaic power generation device 202. The monitoring device 100 includes a data processing chip 102, and the data processing chip 102 integrates a communication unit 104 and a data processing unit 106. Among them, the communication unit 104 is used to connect to the photovoltaic power generation device 202 to receive the data signal of the photovoltaic power generation device 202, and the data processing unit 106 is used to process the data signal to generate monitoring data; a host computer 108 is connected to the data processing unit 106 and is used to monitor the photovoltaic power generation device 202 according to the monitoring data.

[0053] The photovoltaic power generation system 200 provided by the present utility model includes a photovoltaic power generation device 202 and a monitoring device 100. Among them, the photovoltaic power generation device 202 is used to convert light energy into electrical energy to achieve the power generation function. The monitoring device 100 can be used to monitor the photovoltaic power generation device 202. Specifically, during the actual operation of the photovoltaic power generation device 202, faults or a decrease in power generation may occur due to phenomena such as shadow, fallen leaves or bird droppings blocking, hot spots, and inconsistent orientations. Through the monitoring device 100, it is possible to monitor the fault condition or the decrease in power generation of the photovoltaic power generation device 202, and thus adjust the operating parameters of the photovoltaic power generation device 202 for the faults or the decrease in power generation of the photovoltaic power generation device 202.

[0054] Specifically, in the distributed photovoltaic power generation device 202, it includes multiple photovoltaic panels connected in series. When one of the photovoltaic panels fails, its power generation will decrease. At the same time, because other photovoltaic panels are connected in series with it, when one photovoltaic panel fails and its power generation decreases, the electrical energy it transmits decreases, and at the same time, the electrical energy that the other photovoltaic panels connected in series with it can transmit also decreases accordingly, thereby resulting in a decrease in the power generation of the photovoltaic power generation device 202. By the monitoring device 100, the electrical energy transmitted by the photovoltaic panel with decreased power generation is increased. Specifically, the current that it can transmit can be increased, so that when the power generation of one photovoltaic panel decreases, it will not affect the power generation of other photovoltaic panels, thereby reducing the loss of electrical energy.

[0055] Furthermore, the monitoring device 100 includes a data processing chip 102 and a host computer 108. The data processing chip 102 is used to establish a communication connection with the photovoltaic power generation device 202, so as to collect the operating parameters during the operation of the photovoltaic power generation device 202. That is, the operating parameters during the operation of the photovoltaic power generation device 202 can be sent to the data processing chip 102 through data signals, and the data processing chip 102 processes the received data signals to generate monitoring data.

[0056] At the same time, the data processing chip 102 is connected to the host computer 108, so that the monitoring data obtained after the data processing chip 102 processes the data signals can be transmitted to the host computer 108. The host computer 108 can monitor the photovoltaic power generation device 202 according to the received monitoring data. Specifically, when the monitoring data is abnormal, the host computer 108 can generate corresponding control instructions according to the monitoring data, and then transmit the control instructions to the data processing chip 102. The data processing chip 102 then transmits the control instructions to the photovoltaic power generation device 202 to adjust the operating parameters of the photovoltaic power generation device 202.

[0057] Among them, the host computer 108 can be an electronic device such as a personal computer or a mobile phone. Through the corresponding application programs in the personal computer or the mobile phone, the monitoring data can be identified and corresponding processing can be performed.

[0058] Specifically, the data processing chip 102 integrates a communication unit 104 and a data processing unit 106. The communication unit 104 is used for communicating and connecting with the photovoltaic power generation device 202, so as to receive the data signal of the photovoltaic power generation device 202. The data processing unit 106 is connected to the communication unit 104, so that the data signal received by the communication unit 104 can be transmitted to the data processing unit 106. The data processing unit 106 processes the data signal to generate monitoring data. Further, the data processing unit 106 is also connected to the host computer 108, so that the data processing unit 106 can transmit the monitoring data to the host computer 108, and at the same time, it can also receive the control instructions sent by the host computer 108, and process the control instructions to generate control signals, so as to transmit the control signals to the photovoltaic power generation device 202 through the communication unit 104 to adjust the operating parameters of the photovoltaic power generation device 202.

[0059] It can be understood that the data processing chip 102 integrates a communication unit 104 and a data processing unit 106. That is, through the data processing chip 102, the transmission and processing of data can be realized, so that there is no need to set two different chips for data transmission and data processing respectively, and thus the cost of the photovoltaic power generation system 200 can be reduced. Moreover, for the data signal of the photovoltaic power generation device 202 received, there is no need to transmit it between two chips, so the data processing efficiency can be improved.

[0060] The photovoltaic power generation system 200 provided by the present utility model includes a photovoltaic power generation device 202 and a monitoring device 100. Among them, the monitoring device 100 receives and processes the data signal of the photovoltaic power generation device 202 through the data processing chip 102 to generate monitoring data. At the same time, by connecting the host computer 108 to the data processing chip 102, the monitoring of the photovoltaic power generation device 202 can be realized according to the monitoring data. If there is an abnormality in the monitoring data, the host computer 108 can also generate corresponding control instructions according to the abnormal monitoring data, and then process the control instructions through the data processing chip 102 to generate control signals and transmit them to the photovoltaic power generation device 202 to adjust the photovoltaic power generation device 202. And the data processing chip 102 integrates a communication unit 104 and a data processing unit 106, so that there is no need to set two different chips for data transmission and data processing respectively, nor to transmit data between two chips, and thus the cost of the photovoltaic power generation system 200 can be reduced and the data processing efficiency can be improved.

[0061] In some embodiments, the data processing chip 102 can be a power line carrier communication chip. A power line carrier communication unit and a high-performance data host computer are integrated in the power line carrier communication chip. Through the power line carrier communication unit, data transmission with the photovoltaic power generation device 202 can be achieved. Through the data host computer, data signal processing can be realized.

[0062] Specifically, the model of the data processing chip 102 can be PE0211. This chip includes an SPI interface (Serial Peripheral Interface), an I 2 C interface (Inter-Integrated Circuit), two UARTs (Universal Asynchronous Receiver and Transmitter), a Flash interface (flash memory interface), two PGAs (Programmable Gain Adjuster), seven GPIO interfaces (General-purpose input / output), one AD (analogue-to-digital conversion) input, and one PWM (Pulse-Width Modulation).

[0063] In some embodiments, optionally, the communication unit 104 includes: a power line carrier communication unit. The power line carrier communication unit is used to connect to the transmission cable 204 of the photovoltaic power generation device 202 to transmit data signals and control signals through the transmission cable 204.

[0064] In this embodiment, the communication unit 104 of the data processing chip 102 can be a power line carrier communication unit, so that data signals and monitoring signals can be transmitted by means of power line carrier communication.

[0065] Specifically, power line carrier communication is a communication technology that uses power lines as the transmission medium, that is, uses the transmission cable 204 of the photovoltaic power generation device 202 to transmit data signals and monitoring signals. Through the power line carrier communication unit, high-frequency signals can be superimposed on the transmission cable 204, enabling the transmission cable 204 to have the ability to transmit data, thus achieving the purpose of data communication on the transmission cable 204.

[0066] By setting the communication unit 104 as a power line carrier communication unit, data transmission can be achieved using the transmission cable 204 of the photovoltaic power generation device 202, thereby effectively reducing the cost of data transmission. Moreover, the power line carrier communication process also has advantages such as a long transmission distance, stable signal transmission, and a wide coverage range.

[0067] In some embodiments, optionally, as Figure 2 shown, the photovoltaic power generation system 200 further includes: an annular magnetic member 110, which is used to sleeved on the transmission cable 204, and the annular magnetic member 110 is connected to the power line carrier communication unit.

[0068] In this embodiment, the monitoring device 100 may include an annular magnetic member 110, which is connected to the power line carrier communication unit, and the annular magnetic member 110 is sleeved on the transmission cable 204 of the photovoltaic power generation device 202.

[0069] It can be understood that when a data signal is superimposed on the transmission cable 204 of the photovoltaic power generation device 202, when the data signal passes through the annular magnetic member 110, the data signal acts on the magnetic field of the annular magnetic member 110, causing the annular magnetic member 110 to generate a corresponding data signal, and the data signal is received by the power line carrier communication unit.

[0070] At the same time, when the power line carrier communication unit transmits a control signal, the control signal is transmitted to the annular magnetic member 110, and the magnetic field of the annular magnetic member 110 changes, so that the control signal is superimposed on the transmission cable 204, thereby realizing the transmission of the control signal to the photovoltaic power generation device 202 through the transmission cable 204.

[0071] Furthermore, the photovoltaic power generation device 202 includes a plurality of photovoltaic panels and a plurality of transmission cables 204. The plurality of photovoltaic panels and the plurality of transmission cables 204 are connected in one-to-one correspondence, and the annular magnetic member 110 is sleeved on at least two transmission cables 204.

[0072] Specifically, the photovoltaic power generation device 202 may include a plurality of photovoltaic panels, and the photovoltaic panels are specifically used to convert light energy into electrical energy under the irradiation of light, thereby realizing photovoltaic power generation. Further, each photovoltaic panel is correspondingly connected to a transmission cable 204, so as to realize the transmission of the electrical energy generated by the photovoltaic panel through the corresponding transmission cable 204 respectively.

[0073] Further, the annular magnetic member 110 can be sleeved on at least two transmission cables 204. That is, by sleeving the annular magnetic member 110 on at least two transmission cables 204 simultaneously, data signal and control signal transmission can be achieved simultaneously with at least two photovoltaic panels, thereby improving the data transmission efficiency and reducing the cost of the photovoltaic power generation system 200.

[0074] In addition, it should be noted that the maximum number of transmission cables 204 that the annular magnetic member 110 can connect can be set to 4. That is, one annular magnetic member 110 can be sleeved on at most 4 transmission cables 204 to ensure the stability of data transmission and avoid interference between multiple data signals or control signals of multiple transmission cables 204.

[0075] In some embodiments, optionally, as Figure 2 shown, the data processing chip 102 further includes: a reset unit 112, connected to the data processing unit 106. The reset unit 112 is used to generate a reset instruction, and the reset instruction is used to instruct the photovoltaic power generation device 202 to perform a reset.

[0076] In this embodiment, the data processing chip 102 further includes a reset unit 112, and the reset unit 112 is used to generate a reset instruction. Specifically, the reset unit 112 can be set as a switch component, and a staff member can operate the switch component to generate a reset signal, and this reset signal can be used to instruct the reset of the photovoltaic power generation device 202.

[0077] Specifically, the reset unit 112 is connected to the data processing unit 106. When a person operates the reset unit 112, the reset unit 112 generates a reset instruction. After the data processing unit 106 receives the reset instruction, it can process the reset instruction to generate a reset signal, and then transmit the reset signal to the photovoltaic power generation device 202 through the communication unit 104 so that the photovoltaic power generation device 202 can perform a reset according to the reset signal.

[0078] Specifically, the reset unit 112 can be a component rapid shutdown device (Rapid Shutdown, RSD).

[0079] In some embodiments, optionally, as Figure 2 shown, the data processing chip 102 further includes: an arc fault disconnector 114, connected to the communication unit 104. The arc fault disconnector 114 is used to connect to the photovoltaic power generation device 202 and is used to generate a shutdown signal in the case of detecting an arc fault signal, and the shutdown signal is used to instruct the photovoltaic power generation device 202 to stop operating.

[0080] In this embodiment, the data processing chip 102 is further integrated with an Arc-Fault Circuit-Interrupter (AFCI) 114. Through the AFCI 114, it is possible to receive the arc fault signal of the photovoltaic power generation device 202. That is, when the AFCI 114 receives the arc fault signal of the photovoltaic power generation device 202, it can be determined that the photovoltaic power generation device 202 may have a short-circuit fault. At this time, the operation of the photovoltaic power generation device 202 can be controlled in a timely manner to avoid losses caused by the short-circuit fire of the photovoltaic power generation device 202.

[0081] Specifically, the AFCI 114 is connected to the photovoltaic power generation device 202, so as to receive the arc fault signal in a timely manner when the photovoltaic power generation device 202 generates an arc fault signal. At the same time, the AFCI 114 is also connected to the communication unit 104, so that when the arc fault signal is received, a shutdown signal can be sent to the photovoltaic power generation device 202 through the communication unit 104 in a timely manner.

[0082] In some embodiments, optionally, as Figure 2 shown, the monitoring device 100 further includes an interaction device 116. One end of the interaction device 116 is connected to the data processing unit 106, and the other end of the interaction device 116 is connected to the host computer 108. The interaction device 116 is used for data interaction between the host computer 108 and the data processing unit 106.

[0083] In this embodiment, the monitoring device 100 may further include an interaction device 116. Through the interaction device 116, data interaction between the data processing unit 106 of the data processing chip 102 and the host computer 108 can be realized. Specifically, the interaction device 116 may include a WIFI device to realize wireless communication between the data processing unit 106 and the host computer 108. The Recommended Standard 485 communication protocol can be used for data transmission between the data processing unit 106 and the interaction device.

[0084] In some embodiments, optionally, as Figure 2 shown, the photovoltaic power generation device 202 includes: a controller 206, which is communicatively connected to the communication unit 104; an inverter 208, and the inverter 208 is connected to the controller 206 through a transmission cable 204; wherein, the controller 206 is used for receiving the control signal sent by the communication unit 104 and controlling the operation of the inverter 208 according to the control signal.

[0085] In this embodiment, the photovoltaic power generation device 202 includes a controller 206 and an inverter 208. Among them, the controller 206 is used to control the inverter 208. Specifically, during the operation of the photovoltaic power generation device 202, the controller 206 can control the operation parameters of the inverter 208 to achieve the control of the output power of the photovoltaic power generation device 202. Specifically, the controller 206 and the inverter 208 can be connected through a transmission cable 204.

[0086] Further, the monitoring device 100 is connected to the transmission cable 204 between the controller 206 and the inverter 208, so as to realize the transmission of data signals and control signals through the transmission cable 204. Specifically, when the monitoring device 100 sends a control signal, the controller 206 receives the control signal through the transmission cable 204, and then the controller 206 controls the operation parameters of the inverter 208 according to the control signal.

[0087] In some embodiments, optionally, as Figure 2 shown, the inverter 208 is connected to the arc fault breaker 114 of the data processing chip 102.

[0088] In this embodiment, the inverter 208 of the photovoltaic power generation device 202 is connected to the arc fault breaker 114 of the data processing chip 102, so as to transmit the arc fault signal to the arc fault breaker 114 of the data processing chip 102 when an arc fault signal is generated.

[0089] It can be understood that during the operation of the photovoltaic power generation device 202, if a short-circuit fault occurs, the inverter 208 will generate an arc fault signal. At this time, the inverter 208 is connected to the arc fault breaker 114 of the data processing chip 102, so that the inverter 208 can timely transmit the arc fault signal to the arc fault breaker 114, and send a turn-off signal to the inverter 208 in time, so as to avoid the loss caused by the short circuit of the photovoltaic power generation device 202.

[0090] Further, the number of inverters 208 is multiple, and the number of arc fault breakers 114 is multiple. The multiple inverters 208 and the multiple arc fault breakers 114 are connected in one-to-one correspondence.

[0091] Specifically, the number of the inverters 208 and the arc fault circuit breakers 114 can both be plural, and the plural inverters 208 and the plural arc fault circuit breakers 114 are connected in one-to-one correspondence. It can be understood that in a photovoltaic power generation system, there can be plural photovoltaic panels. Correspondingly, each photovoltaic panel is connected to one inverter 208, or each inverter 208 is connected to a certain number of photovoltaic panels, so as to output the electric energy converted by the photovoltaic panels through the inverter 208. Correspondingly, the number of the arc fault circuit breakers 114 is the same as that of the inverters 208 and is arranged in one-to-one correspondence with the inverters 208, so that each inverter 208 can timely transmit the arc fault signal to the corresponding arc fault circuit breaker 114 and send a turn-off signal to the inverter 208 in time, thereby avoiding the loss caused by short circuit of the photovoltaic power generation equipment.

[0092] In the description of the present utility model, the term "plural" means two or more than two. Unless otherwise clearly defined, the orientation or positional relationship indicated by terms such as "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model; the terms "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0093] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0094] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A photovoltaic power generation system, characterized in that, Including: Photovoltaic power generation equipment; Monitoring equipment, which is used to monitor the photovoltaic power generation equipment. The monitoring equipment includes a data processing chip, and the data processing chip integrates a communication unit and a data processing unit. Among them, the communication unit is used to connect to the photovoltaic power generation equipment to receive the data signal of the photovoltaic power generation equipment, and the data processing unit is used to process the data signal to generate monitoring data; A host computer, connected to the data processing unit, is used to monitor the photovoltaic power generation equipment according to the monitoring data.

2. The photovoltaic power generation system according to claim 1, wherein The communication unit includes: A power line carrier communication unit, which is used to connect to the transmission cable of the photovoltaic power generation equipment to transmit the data signal through the transmission cable.

3. The photovoltaic power generation system according to claim 2, wherein It also includes: A ring-shaped magnetic part, which is used to sleeve the transmission cable, and the ring-shaped magnetic part is connected to the power line carrier communication unit.

4. The photovoltaic power generation system according to claim 3, wherein, The photovoltaic power generation equipment includes a plurality of photovoltaic panels and a plurality of transmission cables, and the plurality of photovoltaic panels and the plurality of transmission cables are connected in one-to-one correspondence, and the ring-shaped magnetic part sleeves at least two of the transmission cables.

5. The photovoltaic power generation system according to any one of claims 1 to 4, characterized in that The data processing chip further includes: A reset unit, connected to the data processing unit, and the reset unit is used to generate a reset instruction, and the reset instruction is used to instruct the photovoltaic power generation equipment to be reset.

6. The photovoltaic power generation system according to any one of claims 1 to 4, characterized in that, The data processing chip further includes: An arc fault breaker, connected to the communication unit, and the arc fault breaker is used to connect to the photovoltaic power generation equipment, and is used to generate a shutdown signal in the case of detecting an arc fault signal, and the shutdown signal is used to instruct the photovoltaic power generation equipment to stop running.

7. The photovoltaic power generation system according to any one of claims 1 to 4, characterized in that, The monitoring equipment further includes: An interaction device, one end of which is connected to the data processing unit, and the other end of which is connected to the host computer, and the interaction device is used for data interaction between the host computer and the data processing unit.

8. The photovoltaic power generation system according to any one of claims 1 to 4, characterized in that, The photovoltaic power generation equipment includes: A controller, communicatively connected to the communication unit; An inverter, and the inverter is connected to the controller through a transmission cable; Among them, the controller is used to receive the control signal sent by the communication unit and control the operation of the inverter according to the control signal.

9. The photovoltaic power generation system according to claim 8, wherein, The inverter is connected to the arc fault breaker of the data processing chip.

10. The photovoltaic power generation system according to claim 9, characterized in that, The number of the inverters is multiple, and the number of the arc fault breakers is multiple, and the multiple inverters and the multiple arc fault breakers are connected in one-to-one correspondence.

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