| 电力系统振荡中轻微故障识别的小波算法研究 |
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| 引用本文： | 林湘宁,刘沛,程时杰. 电力系统振荡中轻微故障识别的小波算法研究[J]. 中国电机工程学报, 2000, 20(3): 39-44 |
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| 作者姓名： | 林湘宁 刘沛 程时杰 |
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| 作者单位： | 华中理工大学电力系,湖北省,武汉市,430074 |
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| 基金项目： | 国家自然科学基金!5 96 770 10 |
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| 摘 要： | 提出了一种基于小波变换的电力系统振荡与故障的识别算法。该算法能正确区分纯振荡与故障,避免保护误动,在振荡过程中发生故障特别是轻微故障时,亦能迅速识别,其性能优于取传统的振荡闭锁方案。用EMTP仿真各种振荡和故障得到的结果对所提算法的有效性进行了检验,结果表明所提出的算法可以保证振荡与故障的正确识别,其在微机保护装置中具有实时应用的前景。
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| 关 键 词： | 电力系统 振荡 故障识别 小波变换 距离保护 |
| 文章编号： | 0258-8013 (2000) 03-0039-06 |
| 修稿时间： | 1999-01-04 |
RESEARCHES ON FAULT IDENTIFICATION DURING FAST POWER SWINGS WITH WAVELET TRANSFORM BASED ALGORITHM |
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| LIN Xiang-ning,LIU Pei,CHENG Shi-jie. RESEARCHES ON FAULT IDENTIFICATION DURING FAST POWER SWINGS WITH WAVELET TRANSFORM BASED ALGORITHM[J]. Proceedings of the CSEE, 2000, 20(3): 39-44 |
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| Authors: | LIN Xiang-ning LIU Pei CHENG Shi-jie |
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| Abstract: | A new scheme to distinguish swingand faults occurring in transmission lines is proposed based on an orthogonal wavelettransform. The EMTP simulation results show that the faults during power swing can beidentified correctly by use of the algorithm so that the protection need not to be blockedduring system swing. Also, the algorithm is easy to be realized in the real-time process. |
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| Keywords: | power system protection relay wavelet transform power swing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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