| 大型水轮发电机定子接地保护方案及灵敏度分析 |
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| 引用本文： | 邰能灵,尹项根.大型水轮发电机定子接地保护方案及灵敏度分析[J].电力系统自动化,2000,24(7):41-45. |
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| 作者姓名： | 邰能灵 尹项根 |
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| 作者单位： | 华中理工大学电力系,武汉,430074 |
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| 基金项目： | 国家“九五”重大科技攻关项目!(97- 31 2 - 0 6 - 2 - 2 a) |
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| 摘 要： | 以三峡水轮发电机的参数为仿真计算实例，对基波和三次谐波电压原理的水轮发电机各种定子接地保护方案进行了灵敏度的对比分析，在此基础上提出基于故障分量的定子接地保护方案。研究表明，只要取出保证计算精度的故障分量，该方案将能满足三峡电站发电机定子接地保护的灵敏度要求。
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| 关 键 词： | 水轮发电机 零序电压 定子接地保护 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 |
PROTECTION SCHEMES AND SENSITIVITY ANALYSIS FOR HUGE SIZED HYDRO-GENERATOR STATOR GROUND FAULT |
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| Tai Nengling,Yin Xianggen.PROTECTION SCHEMES AND SENSITIVITY ANALYSIS FOR HUGE SIZED HYDRO-GENERATOR STATOR GROUND FAULT[J].Automation of Electric Power Systems,2000,24(7):41-45. |
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| Authors: | Tai Nengling Yin Xianggen |
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| Abstract: | Based on the parameters of a generator in Three Gorges Power Plant, the sensitivity of different protection schemesfor hydro-generator stator ground fault using the theory of zero--sequence voltage is analyzed and compared. A new statorground fault protection scheme based on fault contribution voltage components is presented. Simulation results show that, ifthe fault components can be obtained, the new scheme can satisfy the higher sensitivity required by the generators in ThreeGorges Power Plant.This project is supported by the National Ninth--Five Year Plan Key Project (No. 97--312-06--2-2a). |
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| Keywords: | hydro--generator zero--sequence voltage stator ground fault protection: sensitivity |
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