一种改进的分布式发电孤岛检测方法

孤岛检测技术是分布式发电并网系统研究中的关键技术,检测性能的好坏直接影响到人身及设备的安全。文中提出一种改进的滑模频率偏移算法,通过在计算出起始相位后引入了一个比较环节,有效地克服了传统的孤岛检测方法存在的检测盲区。仿真结果表明该改进算法能够有效的减小孤岛检测的盲区,快速和准确的实现孤岛检测功能。...

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Bibliographic Details
Published in电测与仪表 Vol. 51; no. 18; pp. 20 - 24
Main Author 谢敏 王军 何建平 罗华永 孙章
Format Journal Article
LanguageChinese
Published 西华大学电气信息学院,成都,610039%四川中电启明星信息技术有限公司,成都,610061 2014
Subjects
孤岛检测
检测盲区
滑模频率偏移
slip-mode frequency shift
孤岛检测
滑模频率偏移
islanding detection
检测盲区
detecting blind spot
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ISSN1001-1390

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Summary:孤岛检测技术是分布式发电并网系统研究中的关键技术,检测性能的好坏直接影响到人身及设备的安全。文中提出一种改进的滑模频率偏移算法,通过在计算出起始相位后引入了一个比较环节,有效地克服了传统的孤岛检测方法存在的检测盲区。仿真结果表明该改进算法能够有效的减小孤岛检测的盲区,快速和准确的实现孤岛检测功能。
Bibliography:Islanding detection technology is a key technology in grid connected system of distributed power generation. The detecting performance will directly affect personal security and equipment safety. An improved slip- mode frequency shift islanding detection algorithm has been proposed in this paper though introducing a kind of comparison after obtaining the initial phase in order to overcome the detecting blind spot produced by traditional methods effectively. Simulation results show that the proposed algorithm will reduce the detecting blind spot greatly and thus achieves a fast and accurate islanding detection function.
23-1202/TH
XIE Min, WANG Jun, HE Jian-ping, LUO Hua-yong, SUN Zhang （ 1. School of Electrical and Information Engineering, Xihua University, Chengdu 610039, China. 2. Sichuan Electric Star Information Technology Company, Chengdu 610061, China）
islanding detection, slip-mode frequency shift, detecting blind spot
ISSN:1001-1390