基于高频阻抗谱的干式空心电抗器匝间短路故障诊断方法

doi:10.11930/j.issn.1004-9649.202309025

中国电力 ›› 2024, Vol. 57 ›› Issue (10): 218-224.DOI: 10.11930/j.issn.1004-9649.202309025

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基于高频阻抗谱的干式空心电抗器匝间短路故障诊断方法

刘贺千¹(), 张健¹(), 张海月²(), 杨洪达¹, 陈世玉¹, 申昱博¹, 王磊¹

1. 国网黑龙江省电力有限公司电力科学研究院，黑龙江哈尔滨　150030
2. 工程电介质及其应用教育部重点实验室（哈尔滨理工大学），黑龙江哈尔滨　150080

收稿日期:2023-09-06 接受日期:2024-09-10 出版日期:2024-10-28 发布日期:2024-10-25
作者简介:刘贺千（1989—），男，博士，从事电力设备状态诊断技术研究，E-mail：heqian_liu@163.com
张健（1981—），男，硕士，高级工程师（教授级），从事电力设备状态监测及故障诊断研究，E-mail：13946077726@139.com
张海月（1997—），女，硕士，从事电力设备无损检测评估技术研究，E-mail：2819495983@qq.com
基金资助:
国网黑龙江省电力有限公司科技项目（52243723000L）；国家自然科学基金资助项目（51977051）。

A Fault Diagnosis Method for Interturn Short Circuit of Dry-Type Air-Core Reactor Based on High Frequency Impedance Spectrum

Heqian LIU¹(), Jian ZHANG¹(), Haiyue ZHANG²(), Hongda YANG¹, Shiyu CHEN¹, Yubo SHEN¹, Lei WANG¹

1. Electric Power Research Institute, State Grid Heilongjiang Electric Power Company Limited, Harbin 150030, China
2. Key Laboratory of Engineering Dielectrics and Its Application Ministry of Education (Harbin University of Science and Technology), Harbin 150080, China

Received:2023-09-06 Accepted:2024-09-10 Online:2024-10-28 Published:2024-10-25
Supported by:
This work is supported by Science & Technology Project of State Grid Heilongjiang Electric Power Company Limited (No.52243723000L) and National Natural Science Foundation of China (No.51977051).

摘要/Abstract

摘要：

提出了一种利用宽频阻抗谱对干式空心电抗器匝间短路故障进行有效检测的方法。首先，依据多导体传输线理论构建高频下完好电抗器的等值分布电路模型，并且根据分布等值电路参数计算公式构建其等值仿真模型，分析电抗器宽频阻抗谱的高频特性；其次，对发生匝间短路故障电抗器的宽频阻抗的幅度谱和相位谱进行仿真，分析电感参数变化对电抗器阻抗谱谐振频率的影响规律；最后，在实验室中对小型干式空心电抗器进行试验测试，验证了该方法的有效性。

关键词: 干式空心电抗器, 阻抗谱, 匝间短路, 故障诊断, 高频特性

Abstract:

A detection method for interturn short circuit fault in dry-type air-core reactor is proposed using broadband impedance spectroscopy. Firstly, an equivalent distributed circuit model of intact reactor under high frequency is constructed based on the theory of multi-conductor transmission lines, and an equivalent simulation model is established based on the parameter calculation equation of the distributed equivalent circuit to analyze the high-frequency characteristics of the reactor broadband impedance spectrum. Secondly, the amplitude spectrum and phase spectrum of the broadband impedance of the reactor with interturn short circuit fault are simulated to analyze the influence of inductance parameters on the resonant frequency of the reactor impedance spectrum. Finally, an experimental testing was conducted on a small dry-type air-core reactor in the laboratory, which has verified the effectiveness of the proposed method.

Key words: dry-type air-core reactor, impedance spectrum, interturn short circuit, fault diagnosis, high frequency characteristics

刘贺千, 张健, 张海月, 杨洪达, 陈世玉, 申昱博, 王磊. 基于高频阻抗谱的干式空心电抗器匝间短路故障诊断方法[J]. 中国电力, 2024, 57(10): 218-224.

Heqian LIU, Jian ZHANG, Haiyue ZHANG, Hongda YANG, Shiyu CHEN, Yubo SHEN, Lei WANG. A Fault Diagnosis Method for Interturn Short Circuit of Dry-Type Air-Core Reactor Based on High Frequency Impedance Spectrum[J]. Electric Power, 2024, 57(10): 218-224.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202309025

https://www.electricpower.com.cn/CN/Y2024/V57/I10/218

图/表 11

图 1 完好电抗器的等效电路

Fig.1 Equivalent circuit of intact reactor

图 2 故障电抗器的等效电路

Fig.2 Equivalent circuit of reactor with interturn short circuit fault

图 3 匝间短路部分等效电路

Fig.3 Equivalent circuit of interturn short circuit

图 4 节点电路

Fig.4 Node circuit

图 5 节点电路

Fig.5 Node circuit

图 6 完好电抗器仿真电路

Fig.6 Simulation circuit of intact reactor

图 7 首端含匝间短路的电抗器阻抗谱

Fig.7 The impedance spectrum of reactor with interturn short circuit at the head end

图 8 中部含匝间短路的电抗器阻抗谱

Fig.8 The impedance spectrum of reactor with interturn short circuit in the middle

图 9 末端含匝间短路的电抗器阻抗谱

Fig.9 The impedance spectrum of the reactor with interturn short circuit at the end

图 10 特征参量随故障程度和故障位置变化曲线

Fig.10 Curves of characteristic parameters varying with fault degree and fault location

图 11 匝间短路故障阻抗谱

Fig.11 The tested impedance spectrum of interturn short circuit fault

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基于高频阻抗谱的干式空心电抗器匝间短路故障诊断方法

A Fault Diagnosis Method for Interturn Short Circuit of Dry-Type Air-Core Reactor Based on High Frequency Impedance Spectrum

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基于高频阻抗谱的干式空心电抗器匝间短路故障诊断方法

A Fault Diagnosis Method for Interturn Short Circuit of Dry-Type Air-Core Reactor Based on High Frequency Impedance Spectrum

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