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Method and device for state diagnosis of photovoltaic power station

A photovoltaic power station and state diagnosis technology, which is applied in the monitoring of photovoltaic power generation, photovoltaic modules, photovoltaic systems, etc., and can solve problems such as high error rate.

Inactive Publication Date: 2019-06-18
XUJI GRP +1
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for diagnosing the state of a photovoltaic power station to solve the problems of distinguishing and judging according to human subjective expectations and a high error rate in the traditional state assessment technology of photovoltaic power stations

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  • Method and device for state diagnosis of photovoltaic power station
  • Method and device for state diagnosis of photovoltaic power station
  • Method and device for state diagnosis of photovoltaic power station

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Embodiment Construction

[0114] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0115] 1) Collect panoramic data of photovoltaic power plants.

[0116] Through the on-site data collection device of the photovoltaic power station, intelligent equipment with transmission function, and on-site monitoring system, including Zigbee collection information, infrared collection information, manual entry of information through the human-computer interaction interface, automatic collection of information by smart equipment, etc., the data is passed through The Internet, mobile wireless, etc. are sent to the photovoltaic power station data centralized management center. The data center realizes interface management, and improves the flexibility and scalability of network configuration through centralized management of different interfaces of different manufacturers and different devices.

[0117] Then preprocess the collected data, use the threshold...

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Abstract

The invention discloses a method and device for diagnosing the state of a photovoltaic power station. The method firstly collects the panoramic data of the photovoltaic power station; then extracts the key monitoring data of the photovoltaic power station and calculates the operating state index of the photovoltaic power station; secondly, for the operating state index of the photovoltaic power station, according to historical data , establish a normal cloud model, and calculate the abnormal threshold according to the cloud model; finally, compare the status indicators of the real-time monitoring data with the abnormal threshold to judge whether the real-time status is abnormal. The invention can solve the problems of distinguishing and judging according to people's subjective expectation and high error rate in the traditional state evaluation technology of photovoltaic power stations.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic power generation, and in particular relates to a method and device for diagnosing the state of a photovoltaic power station. Background technique [0002] With the rapid development of the photovoltaic industry and the increasing number of photovoltaic power stations, the operation and maintenance technology of photovoltaic power stations has gradually become a research hotspot. For the scattered and complicated operation data, status data, environmental data, etc. of photovoltaic power plants, there is a lack of effective analysis methods to statistically analyze and dig out key data indicators, and because there are many factors that affect the operation status of power plants, the current The operating state judgment standard provided by the state diagnosis and evaluation technology is mostly based on subjective experience values. In actual operation, some abnormal conditions that do not e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S50/00
CPCH02S50/00G06F17/10Y02E10/50
Inventor 王景丹唐云龙李继川朱美玲陈娜娜龚晓伟牛景乐张鹏飞刘志巍赵书明
Owner XUJI GRP
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