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Online fault monitoring device and system for photovoltaic panels

A fault monitoring and photovoltaic panel technology, which is applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve the problems that the initial failure of photovoltaic panels cannot be found in time, it is difficult to detect, and it is impossible for users to provide early warning of photovoltaic panel failures.

Inactive Publication Date: 2018-03-20
陆刚 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in actual use, when a photovoltaic panel has an initial failure, the difference between its thermal image and the normal thermal image is not obvious, and it is difficult to detect
It can be seen that the existing online fault detection methods for photovoltaic panels cannot detect the initial failure of photovoltaic panels in time, and cannot provide users with early warning of photovoltaic panel failures.

Method used

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  • Online fault monitoring device and system for photovoltaic panels
  • Online fault monitoring device and system for photovoltaic panels
  • Online fault monitoring device and system for photovoltaic panels

Examples

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Embodiment 1

[0039] figure 1 A schematic structural diagram of an online fault monitoring device for photovoltaic panels provided by an embodiment of the present invention, the online fault monitoring device for photovoltaic panels is applied to groups of photovoltaic panels connected in series, such as figure 1 As shown, the photovoltaic panel online fault monitoring device includes a controller 101, and a plurality of voltage detection modules 102, current detection modules 103 and communication modules 104 respectively connected to the controller 101.

[0040] figure 2 A schematic diagram of the connection between a voltage detection module and a photovoltaic panel provided for an embodiment of the present invention, as shown in figure 2As shown, each voltage detection module 102 is respectively connected to multiple photovoltaic panels in the photovoltaic panel group for detecting the voltage data of each photovoltaic panel and sending the voltage data to the controller 101, wherein...

Embodiment 2

[0052] Figure 4 A schematic structural diagram of an online fault monitoring system for photovoltaic panels provided by an embodiment of the present invention, as shown in Figure 4 As shown, the system includes a monitoring terminal 42 and a photovoltaic panel online fault monitoring device 41 as in the first embodiment above, and the photovoltaic panel online fault monitoring device 41 is connected to the monitoring terminal 42 in communication.

[0053] Specifically, the above-mentioned monitoring terminal 42 may be a monitoring room at a fixed location, or may be a mobile terminal such as a mobile phone, a tablet computer, or a notebook computer, which is not limited here. There are multiple photovoltaic panel online fault monitoring devices 41, for example, 3 ( Figure 4 shown), the number is not limited here; each photovoltaic panel online fault monitoring device 41 is used to monitor a photovoltaic panel group. In addition, the user can also analyze the historical ch...

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Abstract

The invention provides an online fault monitoring device and system for photovoltaic panels. The device comprises a controller, a plurality of voltage detection module which are connected with the controller respectively, a current detection module and a communication module, wherein each voltage detection module is connected with a plurality of photovoltaic panels in a photovoltaic panel group respectively, and is used for detecting the voltage data of each photovoltaic panel and transmitting the voltage data to the controller; the current detection module is connected with the photovoltaic panel group, and is used for detecting the current data of the photovoltaic panel group and transmitting the current data to the controller; the controller is used for carrying out fault prejudgment onthe received voltage data and current data to obtain a fault prejudgment result and transmitting the voltage data, current data and fault prejudgment result to a monitoring terminal through the communication module. According to the online fault monitoring device and system for photovoltaic panels provided by the invention, initial faults of the photovoltaic panels can be discovered in time, anddamaged photovoltaic panels are quickly and accurately positioned.

Description

technical field [0001] The invention relates to the technical field of fault detection, in particular to an online fault monitoring device and system for photovoltaic panels. Background technique [0002] A photovoltaic panel module is a power generation device that generates direct current electricity when exposed to sunlight. It consists of thin, solid photovoltaic cells almost entirely made of semiconductor materials such as silicon. [0003] At present, in large-scale solar photovoltaic power generation systems, the online performance detection of photovoltaic panels is usually: using infrared cameras carried by drones to collect the heat-generating areas of photovoltaic panels, and judging the performance of photovoltaic panels according to the heating conditions of the heat-generating areas. If there is a component short circuit in the photovoltaic panel, the component will be hotter. At this time, the thermal imaging of the photovoltaic panel is very different from th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S50/10H02S50/15H02J13/00H04N7/18
CPCH02J13/00H02S50/10H02S50/15H04N7/18Y02E10/50
Inventor 陆刚李沛佳
Owner 陆刚
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