| 有串补电容输电线分相电流差动保护的新原理 |
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| 引用本文： | 贺家李,郭征.有串补电容输电线分相电流差动保护的新原理[J].继电器,2005,33(1):1-9. |
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| 作者姓名： | 贺家李 郭征 |
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| 作者单位： | 天津大学自动化学院, 天津 300072 |
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| 基金项目： | 国家自然科学基金项目(50477037) |
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| 摘 要： | 提出了在有串联补偿电容的长距离输电线路上应用贝瑞隆模型实现分相电流差动保护的新原理,这是作者应用贝瑞隆模型实现线路纵联差动保护研究工作的继续。该文推导出了所提新原理的各相动作量表达式,理论分析和仿真都证明了所提新原理在长距离输电线路中仍然不受分布电容电流的影响,具有更高的灵敏度和可靠性。
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| 关 键 词： | 差动保护 串补电容 贝瑞隆模型 |
| 文章编号： | 1003-4897(2005)01-0001-09 |
| 修稿时间： | 2004年10月14 |
New principle of segregated phase current differential protection in long distance transmission line with series capacitor compensation |
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| HE Jia-li and GUO Zheng.New principle of segregated phase current differential protection in long distance transmission line with series capacitor compensation[J].Relay,2005,33(1):1-9. |
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| Authors: | HE Jia-li and GUO Zheng |
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| Affiliation: | Department of Electric Power Automation; Tianjin University; Tianjin 300072; China |
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| Abstract: | This paper improves the new principle of Bergeron-based segregated phase current differential protection. The improved new principle can be used in long distance transmission line with series capacitor compensation. This paper gives expressions of operating quantities of every phase. The theoretical analysis and simulation results prove that the improved principle will not still be affected by distributed capacity current of transmission line and has higher sensitivity and reliability. |
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| Keywords: | differential relay series compensated capacitor Bergeron model |
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