摘要
对智能电网中分布式发电的接入问题———孤岛检测进行了分析和总结,对孤岛的形成和危害进行了简述,就逆变器侧孤岛检测的各种方法进行了对比分析,提出采用过频/欠频、过压/欠压与自动相位偏移(APS)相结合的方法进行孤岛检测。并由此设计了软件流程图和相应的硬件电路,研制出孤岛检测控制单元,能够有效地检测出孤岛并防止孤岛的发生。
Pointing to connect-in issue of distributed generation in intelligent grid, the paper analyses and sums the island inspection, introduces briefly the island formation and harm, analyses and compares various island inspection methods at inverter side, presents a new method combining the OUF/OUV and automatic phase shift（APS） to inspect the island. A program flow diagram and relative hardware circuits are designed, an island detection control unit about is developed, which is capable to inspect an island and prevent it from occurrence effectively.
出处
《电力建设》
2009年第9期5-7,11,共4页
Electric Power Construction
基金
国家电网公司科技项目(SGKJ[2007]150)
