并网逆变器孤岛控制技术

被引：23

作者：

曹海燕

田悦新

机构：

[1] 石家庄经济学院信息工程学院

来源：

电力系统保护与控制 | 2010年 / 38卷 / 09期

关键词：

并网逆变器; 孤岛检测; 孤岛保护; 孤岛运行;

D O I：

暂无

中图分类号：

TM464 [逆变器];

学科分类号：

摘要：

为解决传统孤岛保护控制存在孤岛检测盲区,使得孤岛保护失效的问题,提出基于频率正反馈扰动的孤岛保护控制方法,既减小了传统有源孤岛保护控制对输出电能质量的影响,又实现了无盲区的孤岛保护控制。对于大功率应用场合,孤岛保护控制不再适用。因此,IEEE Std.1547-2003标准中提出孤岛运行控制的概念。针对标准要求提出基于工作模式切换的孤岛运行控制,使得孤岛发生前后,并网逆变器输出电压均满足用户负载运行要求。仿真结果验证了两种孤岛控制方案的正确性。

引用

页码：72 / 74+91 +91

页数：4

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