| 基于s注入法的小电流系统消谐与选线一体化方案研究 |
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| 引用本文： | 瞿敏,张炳达,刘长胜. 基于s注入法的小电流系统消谐与选线一体化方案研究[J]. 现代电力, 2003, 0(Z1) |
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| 作者姓名： | 瞿敏 张炳达 刘长胜 |
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| 作者单位： | 天津大学电气与自动化工程学院 天津300072(瞿敏，张炳达)，天津大学电气与自动化工程学院 天津300072(刘长胜) |
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| 摘 要： | 单相接地故障和铁磁谐振故障是小电流系统经常发生的故障。首先介绍了s注入法选线和测距的基本原理 ,然后提出了利用频率检测法和s注入法相结合辨别单相接地故障与铁磁谐振故障的方法 ,有效解决了接地信号发生时将铁磁谐振故障误认为接地故障进行处理的问题 ,由此提出了利用s注入法实现消谐和选线一体化的可行性方案
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| 关 键 词： | 小电流系统 铁磁谐振 故障选线 故障选相 |
Fault Line Selection Based on Signal Injection Method in Small Current System |
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| Qu Min,Zhang Bingda,Liu Changsheng. Fault Line Selection Based on Signal Injection Method in Small Current System[J]. Modern Electric Power, 2003, 0(Z1) |
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| Authors: | Qu Min Zhang Bingda Liu Changsheng |
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| Abstract: | Phase|to|ground fault and ferro|resonance fault are common in small current system.In this paper ,signal injection method and its fault location principle are introduced first.Then the method to identify the phase|to|ground fault and ferro|resonance fault by making use of frequency examination method and signal injection method is presented,by which the problem mistaking the phase|to|ground fault as the ferro|resonance when phase|to|ground fault signal occurred is resolved according to which the scheme of integrating the fault selection and resonance elimination is put forward. |
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| Keywords: | small current system ferro|resonance fault line selection fault phase selection |
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