State Characterization of AC Contactor Based on Multi-feature Enhanced Fusion

被引：0

作者：

Jiang X. ^{[1
]}

Cao Y. ^{[1
]}

Liu Y. ^{[1
]}

Liu S. ^{[1
]}

Gao S. ^{[1
]}

Zhou Z. ^{[1
]}

机构：

[1] Key Laboratory of Special Electric Machines and High Voltage Apparatus Ministry of Education, Shenyang University of Technology, Shenyang

来源：

Gaodianya Jishu/High Voltage Engineering | 2024年 / 50卷 / 01期

关键词：

AC contactor; autoencoder; multi-feature fusion; self-organizing maps; state characterization; Wasserstein distance;

D O I：

10.13336/j.1003-6520.hve.20221830

中图分类号：

TN6 [电子元件、组件];

学科分类号：

080903 ;

摘要：

Accurately grasping the operating state of AC contactors is the basis for realizing the intelligentization of AC contactors. To this end, a state representation method based on multi-feature enhanced fusion is proposed. Firstly, according to the characteristics of AC contactor’s characteristic parameters of nonlinear, non-stationary, random change, and insignificant trend but in line with certain statistical characteristics, the Wasserstein probability distance is used to carry out feature transformation to obtain the initial state features with strong trend. Driven by the dynamic feature parameters and after the characteristics of strong coupling between parameters being taken into consideration, the auto-encoder neural network is used for feature compression and extraction, redundant information is eliminated, and useful information is retained. The neural network is used to realize the competitive fusion output of multi-dimensional features, to obtain the comprehensive health index of the operating state of the AC contactor, and to realize the quantitative representation of the state of the AC contactor. Finally, combined with the measured data, the effectiveness of the proposed method is verified.Compared with the results from other two methods, the results show that the health index trend, monotonicity and robustness obtained by the proposed method are improved by at least 4%, 24% and 5%, which can provide references for the next study on the precise control and intelligence of AC contactor. © 2024 Science Press. All rights reserved.

引用

页码：282 / 291

页数：9

共 27 条

[1]

SHENG Gehao, QIAN Yong, LUO Lingen, Et al., Key technologies and application prospects for operation and maintenance of power equipment in new type power system, High Voltage Engineering, 47, 9, pp. 3072-3084, (2021)

[2]

JIANG Xiuchen, XU Yongpeng, LI Yaocheng, Et al., Digitalization transformation of power transmission and transformation under the background of new power system, High Voltage Engineering, 48, 1, pp. 1-10, (2022)

[3]

LI Xiaobei, Electrical operation test of AC contactor and analysis of its electrical life, (2016)

[4]

WU Z, WU G, HUANG H, Et al., A novel residual electrical endurance prediction method for low-voltage electromagnetic alternating current contactors, IEEE Transactions on Components, Packaging and Manufacturing Technology, 5, 4, pp. 465-473, (2015)

[5]

ZHENG Shumei, LI Kui, LIU Zhengjun, Et al., Research on distributional characteristic of electrical endurance of AC contactor based on arc erosion, Proceedings of the CSEE, 37, 22, pp. 6730-6739, (2017)

[6]

LI Kui, DUAN Yu, HUANG Shaopo, Et al., Residual electrical life prediction of AC contactor based on the wiener process, Proceedings of the CSEE, 38, 13, pp. 3978-3986, (2018)

[7]

FU Rao, LIANG Huimin, YE Xuerong, Et al., Contactor contact over-travel analysis and diagnosis of degradation state, Transactions of China Electrotechnical Society, 35, 1, pp. 125-133, (2020)

[8]

SUN Shuguang, JI Xueling, DU Taihang, Et al., Extraction of failure feature for electrical life prediction of AC contactor under mechanical vibration, Chinese Journal of Scientific Instrument, 40, 3, pp. 114-125, (2019)

[9]

DU Taihang, AN Jianpeng, SUN Shuguang, Et al., LabVIEW-based AC contactor electrical life test system under vibration conditions, Instrument Technique and Sensor, 8, pp. 113-117, (2018)

[10]

LI Kui, GAO Zhicheng, WU Yi, Et al., Prediction of remaining life of AC contactors based on statistical regression and nonlinear Wiener process, Transactions of China Electrotechnical Society, 34, 19, pp. 4058-4070, (2019)

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