光伏并网逆变器反孤岛效应控制策略特性分析  

Control Strategy Features Analysis on Anti-Islanding Effect of Photovoltaic Grid-Connected Inverter

作　　者：顾娟[1] 林明耀[1] 单竹杰[1] 张怡然[1] 

机构地区：[1]东南大学电气工程学院,江苏南京210096

出　　处：《电工电气》2009年第10期23-26,共4页Electrotechnics Electric

基　　金：江苏省自然科学基金项目(BZ2008306)

摘　　要：介绍了有源频率偏移(AFD)法的基本原理,讨论了使用该方法检测孤岛时不同的斩波率大小与极性的选取对系统运行性能的影响,并对AFD法的孤岛检测盲区(NDZ)进行了分析。最后归纳总结了使用该方法检测孤岛时存在的缺点,并提出了改进措施。Introduction was made to the basic principle of active frequency drift（AFD） method, the influences to the system operation performance discussed on using the method to test island with different chopping fraction size and polarity choosing, and analysis was carried out on AFD method＇s test non-detection zone（NDZ）. Finally, the disadvantages of AFD in islanding detection are summarized and improvements are proposed.

关 键 词：有源频率偏移法 斩波率 非检测区 

分 类 号：TM464[电气工程—电器]