Fault detection method for photovoltaic substrate strings
A fault detection and substrate technology, applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve the problems of low detection efficiency, incomplete information communication, difficult to detect contact problems, etc., to improve detection efficiency and solve detection problems. inefficient effect
Active Publication Date: 2016-08-17
EAST GRP CO LTD
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Problems solved by technology
The problem with this method is that it is a waste of manpower, and the problem may not be solved in time due to incomplete information communication
In addition, it is generally difficult to detect some contact problems by testing the output voltage, but the contact resistance is not a particularly large fault
Overall, the detection efficiency of these methods is low
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[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only parts related to the present invention are shown in the drawings but not all content.
[0021] figure 1 It is a schematic diagram of a photovoltaic substrate string fault detection device provided by an embodiment of the present invention. The photovoltaic substrate string fault detection device provided in this embodiment can be used to detect faults in a photovoltaic substrate string. Such as figure 1 As shown, the photovoltaic substrate string fault detection device provided in this embodiment includes a function detection terminal 110 and a remote control display terminal 120 . Wherein, the function detecti...
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The invention discloses a fault detection device and method for a photovoltaic substrate set string. The device comprises a function detection terminal and a remote control display terminal. The remote control display terminal is used for generating a first remote control instruction. The function detection terminal is used for detecting the output voltage of the photovoltaic substrate set string under the control of the first remote control instruction generated by the remote control display terminal, and sending the detected output voltage to the remote control display terminal. The remote control display terminal is further used for displaying the output voltage sent by the function detection terminal. The detection result can be directly displayed to detection personnel through the remote control display terminal, and therefore the detection personnel can obtain the output voltage of the photovoltaic substrate set string in the connection position of photovoltaic substrates through the remote control display terminal, and do not need to return to the output position of the photovoltaic substrate set string to obtain the output voltage of the photovoltaic substrate set string, detection efficiency is improved, and the problem that in the prior art, the detection efficiency is low is solved.
Description
technical field [0001] Embodiments of the present invention relate to photovoltaic power generation technology, and in particular to a fault detection device and method for photovoltaic substrate strings. Background technique [0002] In the power station photovoltaic power generation system, a large number of photovoltaic substrates are used to convert solar energy into electrical energy. Due to the low voltage and power of a single substrate, multiple photovoltaic substrates are usually connected in series to form a string to increase the total output voltage. . [0003] Depending on the open-circuit voltage of a single photovoltaic substrate and the input voltage range of a photovoltaic inverter, the number of photovoltaic substrates connected in series in each string is different, usually ranging from 20 to 30. The output wires of these photovoltaic substrates are usually connected through special connectors. Due to the large number of substrates involved, these connec...
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IPC IPC(8): H02S50/10
CPCY02E10/50
Inventor 陈书生
Owner EAST GRP CO LTD