《电力自动化设备》

引用本文:	徐在德,范瑞祥,章辉,黄新,李晓龙,刘心悦.光伏并网逆变器电子防孤岛保护测试装置及其应用[J].电力自动化设备,2018,(4):
	XU Zaide,FAN Ruixiang,ZHANG Hui,HUANG Xin,LI Xiaolong,LIU Xinyue.Electronic anti-islanding protection test device of photovoltaic grid-connected inverter and its application[J].Electric Power Automation Equipment,2018,(4):

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光伏并网逆变器电子防孤岛保护测试装置及其应用
徐在德¹, 范瑞祥¹, 章辉², 黄新³, 李晓龙⁴, 刘心悦⁵
1.国网江西省电力公司电力科学研究院，江西南昌330096;2.江苏同芯电气科技有限公司，江苏南京210000;3.国网江西省电力公司宜春供电分公司，江西宜春336000;4.国网山东省电力公司济宁供电分公司，山东济宁272000;5.兰州理工大学电气工程与信息工程学院，甘肃兰州730050

摘要:

为了提高光伏并网逆变器的防孤岛测试水平、有效地解决传统RLC负载测试条件的限制，提出实时功率匹配的三相四线制背靠背结构电力电子防孤岛保护策略，并研制了30 kW防孤岛保护测试装置，装置输入侧模拟交流电压源实现光伏并网逆变器与测试装置在有功功率、无功功率的高精度匹配，输出侧将从输入侧吸收的有功功率高效逆变反馈给电网。该控制算法采用自适应模糊比例积分(PI)控制。将该装置与传统RLC负载防孤岛测试进行防孤岛性能对比，实验结果证明电力电子防孤岛保护测试装置响应速度快、测试精度高、操作便捷、不受外部环境影响。

关键词: 光伏并网逆变器电子防孤岛保护三相四线制逆变器 RLC负载

DOI：10.16081/j.issn.1006-6047.2018.04.020

分类号:TM464

基金项目:

Electronic anti-islanding protection test device of photovoltaic grid-connected inverter and its application

XU Zaide¹, FAN Ruixiang¹, ZHANG Hui², HUANG Xin³, LI Xiaolong⁴, LIU Xinyue⁵

1.State Grid Jiangxi Electric Power Research Institute, Nanchang 330096, China;2.Jiangsu Tongxin Electric Technology Co.,Ltd.,Nanjing 210000, China;3.State Grid Jiangxi Electric Power Company Yichun Power Supply Branch, Yichun 336000, China;4 State Grid Shandong Electric Power Company Jining Power Supply Branch, Jining 272000, China;5.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou 730050, China

Abstract:

In order to improve the anti-islanding level of photovoltaic grid-connected inverter and solve the limitation of traditional RLC load test conditions effectively, a strategy for three-phase four-wire back-to-back electronic anti-islanding protection is proposed with real-time power matching, and a 30 kW electronic anti-islanding protection test device is developed. The input side of the device simulates AC voltage source to realize high accuracy matching of active power and reactive power between photovoltaic grid-connected inverter and the test device. The output side of the device feedbacks the active power absorbed from the input side to the power grid efficiently. Adaptive fuzzy PI control is used in the control algorithm. Compared with the traditional RLC load anti-islanding test, experimental results show that the designed electronic anti-islanding protection test device has the advantages of fast response, high test precision, convenient operation, and is not affected by the external environment.

Key words: photovoltaic grid-connected inverter electronic anti-islanding protection three-phase four-wire system electric inverters RLC load

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