A Control Strategy for Maximizing the Electrical Life of AC Contactors Based on Real-Time Operating Parameters
Li Kui1,2, Zhang Guopan1,2, Zheng Shumei3, Huang Shaopo1,2, Zhao Chengchen1,2
1. State Key Laboratory of Reliability and Intelligence of Electrical Equipment Hebei University of Technology Tianjin 300130 China; 2. Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province Hebei University of Technology Tianjin 300130 China; 3. The First Monitoring and Application Center of China Earthquake Administration Tianjin 300180 China
Abstract The failures of AC contactors are mainly caused by the arc erosions during breaking electrical circuits, and therefore, the electrical life of contactors can be increased by controlling the arc erosions properly. The effect of arc starting phase angle (ASPA) on the arc duration and hence the arc erosion was analyzed in this paper, and the differences of the electrical life under three control modes, including the random ASPA control, the fixed ASPA control and the three-phase uniform wear control, were also investigated in detail. The randomness of the ASPA caused by the inconstant release time of AC contactor was analyzed, and then the characteristic of contactor's electrical life under this randomness was analyzed through simulation. A maximum life control method based on the standard deviation of ASPA to control the optimal releasing moment of AC contactor, in terms of minimizing the arc erosion, was proposed in this paper. In application, the releasing moment of contactor can be adjusted properly and automatically according to the real-time operating parameters to maximize the electrical life of AC contactor. Experiments under the three control modes prove that the arc erosions of three contacts are almost the same and the erosion rate is the minimum under the maximum life control, and the electrical life of the AC contactor is significantly increased.
Li Kui,Zhang Guopan,Zheng Shumei等. A Control Strategy for Maximizing the Electrical Life of AC Contactors Based on Real-Time Operating Parameters[J]. Transactions of China Electrotechnical Society, 2021, 36(9): 1976-1985.
[1] 陆俭国. 电工产品可靠性工作概况及展望[J]. 江苏电器, 2001(6): 1-6,10. Lu Jianguo.Operating outlines and prospect of reliability in electrical products[J]. Jiang Su Dian Qi, 2001(6): 1-6, 10. [2] 刘诚承. 风电交流接触器电磁机构的设计[D]. 沈阳: 沈阳工业大学, 2017. [3] Kawakami Y, Hasegawa M, Watanabe Y, et al.An investigation for the method of lifetime prediction of Ag-Ni contacts for electromagnetic contactor[C]// Proceedings of the 51th IEEE Holm Conference on Electrical Contacts, Chicago, IL, USA, IEEE, 2005: 151-155. [4] Sawa K, Yoshida K, Watanabe M, et al.Arc characteristics and electrode mass change of AgNi contacts for electromagnetic contactors[C]// Proceedings of the 56th IEEE Holm Conference on Electrical Contacts, Charleston, SC, IEEE, 2010: 1-6. [5] 袁金丽, 李奎, 王尧, 等. 交流接触器电寿命监测技术的研究[J]. 低压电器, 2011(17):7-10. Yuan Jinli, Li Kui, Wang Yao, et al.Study on online monitoring of electrical endurance of AC contactor[J]. Low Voltage Apparatus, 2011(17): 7-10. [6] 郑淑梅, 李奎, 刘政君, 等. 基于触头电弧侵蚀的交流接触器电寿命分布特征研究[J]. 中国电机工程学报, 2017, 37(22): 6730-6739, 6786. Zheng Shumei, Li Kui, Liu Zhengjun, et al.Research on distributional characteristic of electrical endurance of AC contactor based on arc erosion[J]. Proceedings of the CSEE, 2017, 37(22): 6730-6739, 6786. [7] 李奎, 高志成, 武一, 等. 基于统计回归和非线性Wiener过程的交流接触器剩余寿命预测[J].电工技术学报, 2019, 34(19): 4058-4070. Li Kui, Gao Zhicheng, Wu Yi, et al.Remaining lifetime prediction of AC contactor based on statistical regression and nonlinear Wiener process[J]. Transactions of China Electrotechnical Society, 2019, 34(19): 4058-4070. [8] Zheng Shumei, Niu Feng, Li Kui, et al.Analysis of electrical life distribution characteristics of AC contactor based on performance degradation[J]. IEEE Transactions on Components, Packaging and Manufacturing Technology, 2018, 8(9): 1604-1613. [9] 李奎, 段宇, 黄少坡, 等. 基于Wiener过程的交流接触器剩余电寿命预测[J]. 中国电机工程学报, 2018, 38(13): 3978-3986, 4039. Li Kui, Duan Yu, Huang Shaopo, et al.Residual electrical life prediction of AC contactor based on the Wiener process[J]. Proceedings of the CSEE, 2018, 38(13): 3978-3986, 4039. [10] 李奎, 李晓倍, 郑淑梅, 等. 基于BP神经网络的交流接触器剩余电寿命预测[J]. 电工技术学报, 2017, 32(15): 120-127. Li Kui, Li Xiaobei, Zheng Shumei, et al.Residual electrical life prediction for AC contactor based on BP neural network[J]. Transactions of China Electro-technical Society, 2017, 32(15): 120-127. [11] 鲍光海, 张培铭. 智能交流接触器零电流分断技术[J]. 电工技术学报, 2012, 27(5): 199-204. Bao Guanghai, Zhang Peiming.Technology of zero-current breaking of intelligent AC contactor[J]. Transactions of China Electrotechnical Society, 2012, 27(5): 199-204. [12] 陈德为, 陈文桂, 吕伯钦, 等. 具有电磁可控反力的智能交流接触器的实现与动态分析[J].中国电机工程学报, 2016, 36(13): 3660-3666, 3386. Chen Dewei, Chen Wengui, Lü Baiqin, et al.Realization and dynamic analysis of the intelligent AC contactors with electromagnetic controllable force[J]. Proceedings of the CSEE, 2016, 36(13): 3660-3666, 3386. [13] 黄海兰. 交流接触器分断触头电弧特性及其长寿命控制策略研究[D]. 温州: 温州大学, 2016. [14] 陈德桂. 低压电器智能化的新技术[J]. 低压电器, 2008(1): 1-5, 33. Chen Degui.New intelligent technique of low voltage apparatus[J]. Low Voltage Apparatus, 2008(1): 1-5, 33. [15] 许志红, 张培铭. 智能交流接触器零电流分断控制技术[J]. 电工电能新技术, 2002, 21(4): 54-57. Xu Zhihong, Zhang Peiming.Technology of zero-current breaking of intelligent AC contactor[J]. Advanced Technology of Electrical Engineering and Energy, 2002, 21(4): 54-57. [16] Wu Ziran, Wu Guichu, Huang Hailan, et al.A novel residual electrical endurance prediction method for low-voltage electromagnetic alternating current contactors[J]. IEEE Transactions on Components, Packaging and Manufacturing Technology, 2015, 5(4): 465-473. [17] 郭桥石, 聂嘉, 吴世坤. 新型电子灭弧技术在机械开关中的应用[J]. 电气技术, 2020, 21(2): 119-123. Guo Qiaoshi, Nie Jia, Wu Shikun.Applications of new electronic arc extinguishing technologies in mechanical switches[J]. Electrical Engineering, 2020, 21(2):119-123. [18] 庄杰榕, 许志红. 电磁接触器多变量反馈吸持控制策略的研究[J]. 中国电机工程学报, 2019, 39(5): 1516-1526. Zhuang Jierong, Xu Zhihong.The multivariate feedback control strategy for electromagnetic contactor holding[J]. Proceedings of the CSEE, 2019, 39(5): 1516-1526. [19] 郑昕, 许志红. 交流接触器最佳分断区域的探讨[J].电工技术学报, 2016, 31(7): 198-206. Zheng Xin, Xu Zhihong.An exploration on the best breaking areas of AC contactors[J]. Transactions of China Electrotechnical Society, 2016, 31(7): 198-206. [20] Shen Hongtao, Tao Peng, Zhao Pei, et al.Massive power device condition monitoring data feature extraction and clustering analysis using MapReduce and graph model[J]. CES Transactions on Electrical Machines and Systems, 2019, 3(2): 221-230.
2021, Vol. 36 
