| 基于小波理论的大型发电机内部故障保护方案研究 |
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| 引用本文： | 邰能灵,侯志俭,尹项根,李晓华,陈德树.基于小波理论的大型发电机内部故障保护方案研究[J].东南大学学报,2000,16(2). |
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| 作者姓名： | 邰能灵 侯志俭 尹项根 李晓华 陈德树 |
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| 作者单位： | 上海交通大学电力学院!上海200030(邰能灵，侯志俭)，华中理工大学电力系!武汉430074(尹项根，李晓华，陈德树) |
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| 摘 要： | 本文介绍了小波理论在大型发电机内部故障保护中的应用 ,重点分析正交小波在检测各种内部故障中的效果 .仿真结果表明 ,由于故障波形通常表现为不规则和暂态的行为 ,新方案将能取得很好的保护灵敏度 ,并能可靠地应用于保护装置
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| 关 键 词： | 内部故障 小波变换 信号分解 傅立叶变换 |
Numerical Protection for Stator Internal Faults of Large Synchronous Generator via Wavelet Transform Analysis |
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| Tai Nengling,Hou Zhijian,Yin Xianggen,Li Xiaohua,Chen Deshu.Numerical Protection for Stator Internal Faults of Large Synchronous Generator via Wavelet Transform Analysis[J].Journal of Southeast University(English Edition),2000,16(2). |
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| Authors: | Tai Nengling Hou Zhijian Yin Xianggen Li Xiaohua Chen Deshu |
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| Abstract: | This paper introduces wavelets and investigates the feasibility of detecting various types of stator internal fault of large synchronous generator with the wavelet transform(WT), particularly the dyadic orthonormal wavelet transform. And the simplified analysis of the effects of the WT on detection of internal faults is presented. Because most fault information often presents as irregular and transient waveform, the proposed technique would be efficient and useful for the generator protection relaying. The simulation results show this new approach is suitable for application to protection devices. |
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| Keywords: | internal fault wavelet transform signal decomposition Fourier transform |
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