Common faults of photovoltaic power generation system in ubiquitous power Internet of Things

龚 超; 崔 屹

doi:10.3969/j.issn.1009-1831.2019.S1.005

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Common faults of photovoltaic power generation system in ubiquitous power Internet of Things

更新时间：2026-03-05

- Common faults of photovoltaic power generation system in ubiquitous power Internet of Things
- Vol. 21, Issue S1, (2019)
- 作者机构：
  
  国网浙江安吉县供电有限公司,浙江,湖州,313000
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1009-1831.2019.S1.005
  CLC：
- Published：2019
- 稿件说明：
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龚超, 崔屹. Common faults of photovoltaic power generation system in ubiquitous power Internet of Things[J]. 2019, 21(S1).
DOI：

龚超, 崔屹. Common faults of photovoltaic power generation system in ubiquitous power Internet of Things[J]. 2019, 21(S1). DOI： 10.3969/j.issn.1009-1831.2019.S1.005.

摘要

光伏发电作为泛在电力物联网能源生产端的新能源代表具有很广阔的发展前景。目前分布式光伏已得到大规模应用，以浙江为例，每年新增用户中绝大多数为低压配电网的用户。光伏发电系统由光伏组件串并而成，为了研究光伏系统中几种常见故障及其影响，按照国网低压光伏系统的参数要求搭建了仿真模型；并模拟了共4种常见故障状态下的光伏系统出力情况，仿真发现4种故障中即只有一片光伏电池片出现 4 类故障时，开路对输出功率的影响最大，其次是热斑，然后是短路，最后是老化。

Abstract

As a representative of new energy in the production end of ubiquitous power Internet of things

photovoltaic power generation has a very broad development prospect. At present

distributed photovoltaic has been widely used. Taking Zhejiang as an example

the majority of new users belong to low -voltage distribution network every year. Photovoltaic power generation system is composed of photovoltaic modules in series and in parallel. In order to study several common faults and their effects in photovoltaic system

a simulation model is built according to the parameters requirements of low-voltage photovoltaic system in national grid. The output of photovoltaic system under four common faults is simulated. It is concluded that there is only one of the four faults. When there are four kinds of faults in photovoltaic cells

open circuit has the greatest impact on the output power

followed by hot spot

short circuit

and aging.

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