Photovoltaic module monitoring device and photovoltaic power generation system

A photovoltaic power generation system and photovoltaic module technology, which is applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., and can solve problems such as photovoltaic modules not being connected normally and the working efficiency of photovoltaic power generation systems being reduced

Active Publication Date: 2019-09-13
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present application provides a photovoltaic module monitoring device and a photovoltaic power generation system to solve the problem of reduced working efficiency of the photovoltaic power generation system caused by the fact that the photovoltaic modules in the photovoltaic power generation system are not connected normally and cannot be detected in time

Method used

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  • Photovoltaic module monitoring device and photovoltaic power generation system
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  • Photovoltaic module monitoring device and photovoltaic power generation system

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Embodiment Construction

[0025] The embodiment of this application discloses a photovoltaic power generation system, see figure 1 ,include:

[0026] At least one path of photovoltaic components, wherein at least one path of photovoltaic components includes at least one photovoltaic component.

[0027] A photovoltaic inverter, wherein the photovoltaic inverter includes: a DC-DC converter 102 connected to each photovoltaic module, and an inverter 103 respectively connected to the DC-DC converter 102 connected to each photovoltaic module.

[0028] At least one bypass 101, each bypass 101 is only connected between the input end and output end of the DC-DC converter 102 corresponding to one photovoltaic module, and is used for connecting the corresponding DC-DC converter 102 When the photovoltaic module has no electric energy output, the DC-DC converter 102 connected by bypass.

[0029] The DC power supply device 104 connected to the DC bus of the photovoltaic power generation system is used to output DC...

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Abstract

The present application discloses a photovoltaic module monitoring device and a photovoltaic power generation system, wherein the photovoltaic module monitoring device includes: a DC power supply device and at least one bypass device; wherein: each of the bypass devices is only connected to Between the input end and the output end of the DC-DC converter corresponding to a photovoltaic module in the photovoltaic power generation system, used to bypass the connected DC when the photovoltaic module corresponding to the connected DC-DC converter has no power output ‑DC converter; the DC power supply device is connected to the DC bus of the photovoltaic power generation system, used to output DC current, and connected to a DC-DC converter corresponding to a photovoltaic module in the photovoltaic power generation system When the bypass is closed, the DC current at the output terminal of the DC power supply device is detected.

Description

technical field [0001] This application relates to the technical field of photovoltaic power generation, in particular to the monitoring technology of photovoltaic modules. Background technique [0002] In recent years, with the rapid development of the photovoltaic industry, more and more large-scale ground photovoltaic power generation systems have sprung up rapidly. [0003] In a large-scale ground-mounted photovoltaic power generation system, the number of photovoltaic modules is very large, and the scattered area is wide, so it needs to be installed in a location with good lighting conditions and no shelter. They are all built in relatively remote areas, which creates a high risk of photovoltaic modules being stolen and inconvenience of inspection. [0004] However, once the photovoltaic module is not connected to the photovoltaic power generation system normally due to theft or disconnection, if it is not discovered in time, it will cause the photovoltaic power genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S50/10H02J3/38
CPCH02J3/383H02S50/10Y02E10/56
Inventor 许飞石磊高拥兵
Owner HUAWEI DIGITAL POWER TECH CO LTD
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