电力系统自动化2017，Vol.41Issue(6)：92-97,112,7.DOI:10.7500/AEPS20160719011
基于SVG功率因数调节的光伏电站集中孤岛检测法
Centralized Islanding Detection Method for Photovoltaic Power Station Based on Power Factor Regulation with SVG
摘要
Abstract
The conventional passive and active islanding detection methods have large non-detection zones when employed to detect the islanding of the photovoltaic (PV) power station.The changing situation of voltage amplitude and frequency before and after islanding and failure mechanism of the typical conventional active islanding detection method is analyzed firstly.Then the centralized islanding detection method for PV power station is proposed.According to the structural characteristics of centralized reactive power compensation in the PV power station,when the low output active power of PV power station may match the consumed active power of local loads,regulating the power factor to fluctuate within a narrow range by controlling reactive power output by static var generator(SVG),leading to the mismatching of reactive power between PV power station system and local loads,and islanding is detected accordingly.Theoretical analysis and simulation result has proven that the proposed method can accurately detect islanding of PV power station without none detection zone.关键词
光伏电站/孤岛检测/静止无功发生器(SVG)/功率因数Key words
photovoltaic power station/islanding detection/static var generator (SVG)/power factor引用本文复制引用
贾科,魏宏升,李晨曦,林瑶琦,刘搏晗,何国庆..基于SVG功率因数调节的光伏电站集中孤岛检测法[J].电力系统自动化,2017,41(6):92-97,112,7.基金项目
国家自然科学基金资助项目(51407067) （51407067）
中央高校基本科研业务费专项资金资助项目(2016ZZD01) （2016ZZD01）
国家电网公司总部科技项目"大规模新能源集中防孤岛技术研究与应用".This work is supported by National Natural Science Foundation of China(No.51407067),Fundamental Research Funds for the Central Universities(No.2016ZZD01)and State Grid Corporation of China. （No.51407067）
