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| 基于小波变换的行波幅值比较式方向保护 | |
| 引用本文： | 董杏丽,葛耀中,董新洲,张言苍.基于小波变换的行波幅值比较式方向保护[J].电力系统自动化,2000,24(17):11-15,64. |
| 作者姓名： | 董杏丽 葛耀中 董新洲 张言苍 |
| 作者单位： | 1. 西安交通大学电力工程系,西安,710049 2. 清华大学电机系,北京,100084 3. 国电南京自动化股份有限公司,南京,210003 |
| 基金项目： | 国家自然科学基金资助项目!(5 98770 2 0 )&& |
| 摘 要： | 以小波变换为工具提取故障后的行波信息，并通过小波变换实现行波幅值比较式方向保护。对其在线路结构、故障初始角度、接地电阻等不同影响因素作用下的动作情况进行了详细的分析和仿真。结果表明，利用小波变换后该原理是切实可行的。 |
| 关 键 词： | 行波 幅值比较 方向保护 小波变换 |
| 收稿时间： | 1/1/1900 12:00:00 AM |
| 修稿时间： | 1/1/1900 12:00:00 AM |
DIRECTIONAL PROTECTIVE RELAYING BASED ON AMPLITUDE COMPARISON OF TRAVELLING WAVE BY USING WAVELET TRANSFORM |
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| Dong Xingli,Ge Yaozhong,Dong Xinzhou,Zhang Yancang.DIRECTIONAL PROTECTIVE RELAYING BASED ON AMPLITUDE COMPARISON OF TRAVELLING WAVE BY USING WAVELET TRANSFORM[J].Automation of Electric Power Systems,2000,24(17):11-15,64. | |
| Authors: | Dong Xingli Ge Yaozhong Dong Xinzhou Zhang Yancang |
| Abstract: | The principle of directional protective relaying based on wavelet transform for detection of fault information and amplitude com parison of travelling wave is presented. The effect of some factors such as line structure,fault- inception angle and fault resistance etc,is analyzed. Considering each factor,the principle is sim ulated and the results indicate that factors have little effect on the directional protective relaying,and above all,by using wavelet transform,this principle is feasible. |
| Keywords: | travelling wave amplitude com parison directional protective relaying wavelet transform |
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