| 基于改进电流相差保护的微电网保护方案 |
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| 引用本文： | 周石金,何晋,杨凡,骆通,管恩齐.基于改进电流相差保护的微电网保护方案[J].电测与仪表,2023,60(9):132-137. |
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| 作者姓名： | 周石金 何晋 杨凡 骆通 管恩齐 |
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| 作者单位： | 云南民族大学电气信息工程学院,云南民族大学电气信息工程学院,云南民族大学电气信息工程学院,云南民族大学电气信息工程学院,云南民族大学电气信息工程学院 |
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| 基金项目： | :国家自然科学基金资助项目(No. 61365007,No. 61761049); 云南省教育厅科学研究基金项目(2020Y0242) |
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| 摘 要： | 针对微电网在并网运行和独立运行时不同故障特性以及微电网潮流的双向特性,引入了一种基于改进电流相差保护的微电网保护方案,该方案以IIDG输出端电压为起动判据,结合母线两端电流相位差判据,保证微电网在两种运行状态下都可以准确的区分区内外故障并切除故障线路。在PSCAD/EMTDC仿真软件上进行了算例仿真,验证了基于改进电流相差保护方案的有效性和可靠性。
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| 关 键 词： | 微电网 故障特性 IIDG 电流相差 保护 |
| 收稿时间： | 2020/7/23 0:00:00 |
| 修稿时间： | 2020/7/23 0:00:00 |
Microgrid protection scheme based on improved current phase difference protection |
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| Zhou Shijin,He Jin,Yang Fan,Luo Tong and Guan Enqi.Microgrid protection scheme based on improved current phase difference protection[J].Electrical Measurement & Instrumentation,2023,60(9):132-137. |
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| Authors: | Zhou Shijin He Jin Yang Fan Luo Tong and Guan Enqi |
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| Affiliation: | School of Electrical Information Engineering,Yunnan Min Zu University,School of Electrical Information Engineering,Yunnan Min Zu University,School of Electrical Information Engineering,Yunnan Min Zu University,School of Electrical Information Engineering,Yunnan Min Zu University,School of Electrical Information Engineering,Yunnan Min Zu University |
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| Abstract: | Aiming at the different fault characteristics of microgrid during grid-connected operation and independent operation and the bidirectional characteristics of microgrid power flow, a microgrid protection scheme based on improved current phase difference protection is introduced. This scheme uses the voltage at the output terminal of IIDG as the starting criterion and combines The current phase difference criterion at both ends of the bus bar ensures that the microgrid can accurately distinguish between internal and external faults and remove the faulty line in both operating states. An example simulation was carried out on PSCAD/EMTDC simulation software to verify the effectiveness and reliability of the improved current phase difference protection scheme. |
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| Keywords: | microgrid fault characteristics IIDG current phase difference protection |
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