| 基于小波变换的电流行波母线保护的研究(二)--保护方案与仿真试验 |
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| 引用本文： | 董杏丽,葛耀中,董新洲.基于小波变换的电流行波母线保护的研究(二)--保护方案与仿真试验[J].电工技术学报,2003,18(3):98-101. |
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| 作者姓名： | 董杏丽 葛耀中 董新洲 |
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| 作者单位： | 1. 西安交通大学电气工程学院,710049
2. 清华大学电机系,100084 |
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| 基金项目： | 国家自然科学基金，59877020,50077011， |
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| 摘 要： | 在行波母线保护的基本原理和动作判据的基础上,给出了对应一个半开关接线方式的原理方案.小波变换作为新的数学分支,在这里用来提取电流行波信号中的故障信息,实现原理方案.大量仿真结果表明,所提行波母线保护方案具有原理简单,易于实现,动作速度快等特点,能够满足电力系统母线保护的要求,具有实际可行性.
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| 关 键 词： | 母线保护 电流行波 小波变换 |
| 修稿时间： | 2002年9月23日 |
A New Bus-Bar Protection Based on Current Travelling Waves and Wavelet Transform(2)--Scheme and Simulation |
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| Dong Xingli Ge Yaozhong.A New Bus-Bar Protection Based on Current Travelling Waves and Wavelet Transform(2)--Scheme and Simulation[J].Transactions of China Electrotechnical Society,2003,18(3):98-101. |
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| Authors: | Dong Xingli Ge Yaozhong |
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| Affiliation: | Dong Xingli Ge Yaozhong(Xi'an Jiaotong University 710049 China) Dong Xinzhou(Tsinghua University 100084 China) |
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| Abstract: | The principle scheme aimed at one and a half circuit breaker model is presented based on basic principle and criterion of bus-bar protection.Wavelet transform was proved to be a suitable tool for the analysis of travelling waves and is utilized here to extract fault information from current travelling waves and implement protection scheme.Large amount of EMTP simulations prove that new bus-bar protection based on current travelling waves has satisfactory characteristics and is feasible in practice. |
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| Keywords: | Bus-bar protection current travelling waves wavelet transform |
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