| 电力系统振荡过程中序分量选相元件动作行为分析 |
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| 引用本文： | 索南加乐,许庆强,宋国兵,李瑞生,葛耀中.电力系统振荡过程中序分量选相元件动作行为分析[J].电力系统自动化,2003,27(2):52-55. |
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| 作者姓名： | 索南加乐 许庆强 宋国兵 李瑞生 葛耀中 |
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| 作者单位： | 1. 西安交通大学电气工程学院,陕西省西安市,710049
2. 许昌继电器研究所,河南省许昌市,461000 |
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| 基金项目： | 中华电力教育基金会许继奖教金资助项目~~ |
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| 摘 要： | 对超高压输电线路微机保护所用序分量选相原理和防止振荡时误选相所用的不对称故障开放判据进行了较详细的介绍，对于振荡中心和单相接地故障在同一条长输电线路且两者之间有较远距离的情况，从不对称故障开放判据和阻抗排作法两个方面分析了造成误选相的原因，理论分析和动模试验都证实了这种误选相现象的存在，为以后序分量选相原理的改进提供参考。
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| 关 键 词： | 电力系统 振荡过程 序分量选相元件 动作行为分析 继电保护 线路保护 微机保护 超高压输电线路 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
ANALYSIS ON THE OPERATING CHARACTERISTIC OF THE SEQUENCE-COMPONENT FAULT PHASE SELECTOR DURING POWER SWINGS |
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| Suonan Jiale ,Xu Qingqiang ,Song Guobing ,Li Ruisheng ,Ge Yaozhong.ANALYSIS ON THE OPERATING CHARACTERISTIC OF THE SEQUENCE-COMPONENT FAULT PHASE SELECTOR DURING POWER SWINGS[J].Automation of Electric Power Systems,2003,27(2):52-55. |
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| Authors: | Suonan Jiale Xu Qingqiang Song Guobing Li Ruisheng Ge Yaozhong |
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| Affiliation: | Suonan Jiale 1,Xu Qingqiang 1,Song Guobing 1,Li Ruisheng 2,Ge Yaozhong 1 |
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| Abstract: | In the paper, the theory of sequence component fault phase selection and the criterion for the asymmetry fault during the power swing are presented in detail, which are used in EHV microprocessor based transmission line protection. When the swing center lies in the fault line and the center is far from the fault point, the breaker will trip incorrectly. The reasons why the phenomenon may occur are analyzed considering the criterion opening condition for the asymmetry faults and the impedance excluding method. The fault phase selection characteristic is approved from the theory and the dynamic simulation tests. The content explained above is for the improvement of the sequence component phase selector. |
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| Keywords: | line protection selecting phases simulation microprocessor based protection oscillation |
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