现场环境下光伏组件PID衰减及修复研究

doi:10.11985/2023.02.026

电气工程学报 ›› 2023, Vol. 18 ›› Issue (2): 254-259.doi: 10.11985/2023.02.026

• 新能源发电与电能存储 • 上一篇下一篇

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现场环境下光伏组件PID衰减及修复研究

李达(), 郑海兴(), 张剑锐(), 吴潮辉, 翁军华, 姜鹤, 肖文

南方电网综合能源股份有限公司广州 510075

收稿日期:2021-11-12 修回日期:2022-04-07 出版日期:2023-06-25 发布日期:2023-07-12
作者简介:李达，男，1980年生，博士，高级工程师。主要研究方向为新能源及节能环保。E-mail：lida@csg.cn
郑海兴，男，1985年生，硕士，高级工程师。主要研究方向为新能源与储能技术。E-mail：zhenghx@csg.cn
张剑锐，男，1983年生，硕士，高级工程师。主要研究方向为新能源与储能技术。E-mail：zhangjianrui@csg.cn

Research on PID Effect and PID Repair of PV Module on Site

LI Da(), ZHENG Haixing(), ZHANG Jianrui(), WU Chaohui WENG Junhua, JIANG He, XIAO Wen

China Southern Power Grid Energy Efficiency & Clean Energy Co., Ltd., Guangzhou 510075

Received:2021-11-12 Revised:2022-04-07 Online:2023-06-25 Published:2023-07-12

摘要/Abstract

摘要：

光伏电站系统层面的抗组件电势诱导衰减(Potential induced degradation, PID)实际应用方案主要为PID抑制和PID修复，现有的相关研究均为验证其中一种方案的有效性，但对于在电站设计之初如何选择两种方案，两种方案实际抗PID效果对比如何，却未见相关的研究和结论。在现场环境试验平台和实验室条件下，对多种型号、规格的光伏组件进行PID人工加速衰减及修复试验，依据试验结果将组件分类，再对比现场环境、相同工况下两种方案对这些组件的PID修复效果，分析得到现场环境下不同拓扑结构的光伏系统抗组件PID现象的最优解决方案，对光伏电站的建设和运维有一定的指导意义。

关键词: 光伏组件, 电势诱导衰减(PID), PID抑制, PID修复, 虚拟接地, 反压修复

Abstract:

The practical application scheme for anti-PID(Potential induced degradation) of photovoltaic module at system level of photovoltaic power station is mainly PID suppression and PID repair. However, there is no relevant research and conclusion on how to choose these two schemes on site and the actual anti-PID effect comparison of the two schemes is unclear. Through the on site experiment platform and laboratory platform, the PID effect and repair experiments with various types and specs of PV modules are carried out, and the data onto IV and EL test are collected. At the practical level, the two anti-PID technical routes are studied and demonstrated, and the on site optimal solution to the anti-PID phenomenon of PV systems with different topologies is obtained, which provides certain guidance for the contruction, operation and maintenance of photovaltaic power stations.

Key words: PV module, potential induced degradation(PID), PID suppression, PID repair, virtual grounding, backward voltage repair

中图分类号:

TM914

李达, 郑海兴, 张剑锐, 吴潮辉, 翁军华, 姜鹤, 肖文. 现场环境下光伏组件PID衰减及修复研究[J]. 电气工程学报, 2023, 18(2): 254-259.

LI Da, ZHENG Haixing, ZHANG Jianrui, WU Chaohui WENG Junhua, JIANG He, XIAO Wen. Research on PID Effect and PID Repair of PV Module on Site[J]. Journal of Electrical Engineering, 2023, 18(2): 254-259.

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参考文献 16

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组件信息	初始功率/W	PID衰减测试后功率/W	功率衰减比例(%)	PID修复测试后功率/W	功率修复比例(%)
单晶，品牌a	291.4	289.9	0.50	287.4	98.6
单晶，品牌a	296.7	291.5	1.70	291.3	98.20
单晶，品牌b	297.0	294.9	0.70	296.3	99.70
单晶，品牌b	300.1	298.9	0.40	298.7	99.60
单晶，品牌c	329.4	323.3	1.90	322.3	97.80
单晶，品牌c	328.2	323.1	1.50	321.7	98.00

组件信息	初始功率/W	运行2个月后功率/W	功率衰减比例(%)
常规多晶，品牌a	258.2	255.4	-1.08
常规多晶，品牌a	252.5	245.9	-2.61
常规多晶，品牌a	265.5	259.5	-2.26
单晶PERC，品牌a	301.0	297.9	-1.03
单晶PERC，品牌a	300.7	294.8	-1.97
单晶PERC，品牌a	294.2	288.3	-2.03
单晶PERC，品牌a	300.4	295.5	-1.63
双玻PERC单晶，品牌a	295.9	285.7	-3.45
双玻PERC单晶，品牌a	291.2	285.6	-1.94

方案	抗PID 效果	施工难度	控制难度	设备成本/(元/W)
虚拟接地	样品运行2个月，最大功率提升24.15%	只需要连接三相交流线等简单接线	可按照设定工作模式自动运行	0.003 5
反压充电	样品运行2个月，最大功率提升21.01%	需要连接多路直流出线与电源线等	可按照设定工作模式自动运行	0.012
虚拟接地+反压充电	样品运行2个月，最大功率提升23.18%	设备数量多，且接线复杂	可按照设定工作模式自动运行	0.015 5

现场环境下光伏组件PID衰减及修复研究

Research on PID Effect and PID Repair of PV Module on Site

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