| 基于中小型水电分布式系统的孤岛检测及运行分析 |
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| 引用本文： | 贺眉眉,李华强,类延民,刘俊南.基于中小型水电分布式系统的孤岛检测及运行分析[J].水电自动化与大坝监测,2010,34(5). |
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| 作者姓名： | 贺眉眉 李华强 类延民 刘俊南 |
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| 作者单位： | 四川大学电气信息学院智能电网四川省重点实验室,四川省成都市,610065 |
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| 摘 要： | 分布式发电系统并网运行时,若主网故障解列断电,就会处于孤岛状态,这是一种会威胁到工作人员及设备安全的状态,现在的孤岛运行及其检测研究多集中在基于逆变器的分布式系统,对基于同步电机的分布式系统则研究不足.以同步电机为基础,对中小型水电的孤岛运行进行了阐述,针对原有的不足,提出了一种新的孤岛检测辅助方法,在MATLAB/Simulink软件环境下的仿真表明新的方法在较严苛的功率缺额条件下检测效果明显,能够达到规定的检测阈值,从而迅速检测到孤岛的存在,实现简单可靠,而建议的控制方式能够极大地消除重合闸过程中的振荡,减小对系统的冲击和损害,有利于系统的稳定运行.
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| 关 键 词： | 分布式发电 孤岛检测 同步电机 孤岛运行 中小型水电 |
Islanding Detection and Operation Evaluation for Distributed Generation System with Medium and Small-size Hydroelectric Station |
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| HE Meimei
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LI Huaqiang
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LEI Yanmin
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LIU Junnan.Islanding Detection and Operation Evaluation for Distributed Generation System with Medium and Small-size Hydroelectric Station[J].HYDROPOWER AUTOMATION AND DAM MONITORING,2010,34(5). |
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| Authors: | HE Meimei LI Huaqiang LEI Yanmin LIU Junnan |
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| Institution: | HE Meimei,LI Huaqiang,LEI Yanmin,LIU Junnan(Sichuan University,Chengdu 610065,China) |
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| Abstract: | The grid-connected distributed generation(DG) system will enter into islanding operation if main-grid system splitting caused by power failure.It's a state that will imperil engineers and the equipment concerned.It's important to do some study on islanding detection and operation.However,now the interest of islanding operation study mainly focuses on DG system based on inverter.There is not enough attention paying to DG islanding detection based on synchronous machine.Some study on islanding operation of me... |
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| Keywords: | distributed generation islanding detection synchronous machine islanding operation Medium and small-size hydroelectric station |
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