| 同步发电机定子内部故障暂态过程及对保护的影响 |
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| 引用本文： | 肖仕武,刘万顺,屠黎明,黄少锋.同步发电机定子内部故障暂态过程及对保护的影响[J].电力系统自动化,2003,27(23):63-66. |
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| 作者姓名： | 肖仕武 刘万顺 屠黎明 黄少锋 |
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| 作者单位： | 华北电力大学四方研究所,北京市,100085 |
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| 摘 要： | 利用基于多回路法的凸极同步发电机定子绕组内部故障暂态过程仿真程序，讨论了定子支路电阻和阻尼支路电阻对故障暂态过程及稳态的影响，分析了同步发电机并网运行时定子绕组故障暂态过程中的单元件横差保护、裂相横差保护、完全纵差保护和不完全纵差保护的灵敏度，认为对于没有制动电流的单元件横差保护灵敏度在暂态过程中得到了提高，但对有制动电流的裂相横差、完全纵差和不完全纵差保护的灵敏度则需要具体分析。
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| 关 键 词： | 同步发电机 内部故障 暂态过程 继电保护 灵敏度 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
TRANSIENT SIMULATION OF STATOR WINDING INTERNAL FAULTS IN SYNCHRONOUS GENERATOR AND ITS IMPACT ON PROTECTION |
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| Xiao Shiwu,Liu Wanshun,Tu Liming,Huang Shao feng.TRANSIENT SIMULATION OF STATOR WINDING INTERNAL FAULTS IN SYNCHRONOUS GENERATOR AND ITS IMPACT ON PROTECTION[J].Automation of Electric Power Systems,2003,27(23):63-66. |
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| Authors: | Xiao Shiwu Liu Wanshun Tu Liming Huang Shao feng |
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| Abstract: | Based on the transient simulation program of stator winding internal faults in synchronous generator, this paper presents the effect of stator winding and damper bar resistance on transient and steady currents. It also analyzes the sensitivities of unit-transverse differential protection, split-phase transverse differential protection, differential protection and incomplete differential protection in stator winding internal faults transient period when the synchronous generator is connected to system. The analytical results show that the sensitivity of unit-transverse differential protection can be improved in the transient period, and the sensitivities of split-phase transverse differential protection, differential protection and incomplete differential protection may change a lot on different fault conditions. |
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| Keywords: | synchronous generator internal fault transient period relay protection sensitivity |
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