Photovoltaic panel inspection system and method based on simulated boundary scan

A photovoltaic panel and boundary scan technology, applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve the problems of manual completion of the test, low degree of automation, and long test time, so as to reduce the time and cost of component testing , improve component reliability and test speed

Active Publication Date: 2017-04-19
BEIJING TSING YUN ENERGY TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The test cost is high, the test time is long, the test needs to be completed manually, the degree of automation is low, and the individual performance of each cell cannot be tested. After aging and failure on site, the aging and failure differences of each cell cannot be known.

Method used

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  • Photovoltaic panel inspection system and method based on simulated boundary scan
  • Photovoltaic panel inspection system and method based on simulated boundary scan
  • Photovoltaic panel inspection system and method based on simulated boundary scan

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Embodiment Construction

[0035] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0036] A photovoltaic panel inspection system based on analog boundary scan, such as figure 2 As shown, it includes an ammeter 3 connected in series with the output port of the photovoltaic cell assembly 1, an adjustable load 5, and a simulated boundary scan test device 7 connected to both ends of each cell 2 respectively. Wherein, the adjustable load 5 can be a resistive load, or an inverter, a DC-DC converter, or a field load of a photovoltaic power station, etc., and the adjustable load 5 is applied to the output port of the component for detecting the output current.

[0037] Boundary scan is a way to check the wiring on the printed circuit b...

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Abstract

The invention discloses a simulation boundary scanning-based photovoltaic panel detection system and method. The simulation boundary scanning-based photovoltaic panel detection system is characterized in that the system includes a current meter and an adjustable load which are connected in series with the output port of a photovoltaic battery assembly, and a simulation boundary scanning test device which is connected with two ends of each battery sheet respectively; the simulation boundary scanning test device includes a self-holding sampling interface group, a decoder and a multiplexer; the decoder is connected with the self-holding sampling interface group and the multiplexer respectively; the output end of the self-holding sampling interface group is connected with the multiplexer; one end portion of each battery sheet is connected with one self-holding sampling interface; and the output of the multiplexer is connected with a voltmeter. Based on the simulation self-holding sampling interfaces, a simulation boundary scanning test shell and a simulation boundary scanning bus, independent testing of the battery sheets in the photovoltaic battery assembly can be realized. With the simulation boundary scanning-based photovoltaic panel detection system and method adopted, testing cost can be decreased, and testing time can be reduced, and on-line and automated testing can be realized.

Description

technical field [0001] The invention relates to a photovoltaic panel detection system and method based on analog boundary scan. Background technique [0002] Photovoltaic cell module is composed of multiple photovoltaic cells connected in series (to form a cell string), and then packaged by cover plate, frame, wiring device, etc., to form a power generation unit that is convenient for on-site use. During the process of encapsulating the cells and after the encapsulation is completed, a series of tests will be carried out to determine whether the final photovoltaic cell module meets the product qualification requirements. When the photovoltaic cell module is installed in the photovoltaic power station, due to the influence of the working environment and the aging characteristics of the photovoltaic cell itself, the performance of the photovoltaic cell will change or even fail. However, since the testable points of photovoltaic cells have been encapsulated into the cover and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S50/10
CPCH02S50/00Y02E10/50
Inventor 靳洋吕政良
Owner BEIJING TSING YUN ENERGY TECH CO LTD
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