| 基于离散隐马尔科夫模型的变压器励磁涌流鉴别新算法 |
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| 引用本文： | 马晓旭,张传利,夏明超,黄益庄. 基于离散隐马尔科夫模型的变压器励磁涌流鉴别新算法[J]. 电力系统自动化, 2000, 24(3): 23-28 |
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| 作者姓名： | 马晓旭 张传利 夏明超 黄益庄 |
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| 作者单位： | 清华大学电机系,北京,100084 |
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| 摘 要： | 将语音信号处理领域的隐马尔科夫模型（ＨＭＭ）引入变压器保护，在简要介绍ＨＭＭ及其优点的基础上，提出了一种基于离散ＨＭＭ的励磁涌流和故障电流的识别方法，利用离散ＨＭＭ为ＰＳＣＡＤ仿真的励磁涌流和故障电流数据建立了模型。计算结果表明该方法能可靠识别内部故障和励磁涌流，效果明显。
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| 关 键 词： | 励磁涌流 隐马尔科夫模型 变压器 电力系统 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1900-01-01 |
A NEW APPROACH TO DETECT TRANSFORMER INTERNAL FAULT AND MAGNETIZING INRUSH CURRENT USING DISCRETE HIDDEN MARKOV MODEL |
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| Ma Xiaoxu,Zhang Chuanli,Xia Mingchao,Huang Yizhuang. A NEW APPROACH TO DETECT TRANSFORMER INTERNAL FAULT AND MAGNETIZING INRUSH CURRENT USING DISCRETE HIDDEN MARKOV MODEL[J]. Automation of Electric Power Systems, 2000, 24(3): 23-28 |
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| Authors: | Ma Xiaoxu Zhang Chuanli Xia Mingchao Huang Yizhuang |
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| Affiliation: | Ma Xiaoxu, Zhang Chuanli, XiaMingchao, Huang Yizhuang(Tsinghua University, Beijing 100084, China) |
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| Abstract: | Hidden Markov m odel(HMM), w hich is initially em ployed in the field of speech signalprocessing, is introduced into transform er relaying protection. HMM is depicted briefly, and a new m ethod to detect transform er internalfault and m agnetizing inrush currentbased on HMM is presented. Models for fault and m agnetizing inrush currentdata generated by PSCAD are trained utilizing discrete HMM. The calculation result shows that this m ethod is able to detect transform er internalfaultand m agnetizing inrush currentcorrectly. |
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| Keywords: | m agnetizing inrush current discrete hidden Markov m odel(HMM) probability |
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