1. State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing 400044 China; 2. Automation College Chongqing University Chongqing 400044 China
Abstract：The identification of load and mutual inductance parameters is essential for improving power transfer capability and power transfer efficiency of the MC-WPT systems. In this paper, a load and mutual inductance identification method focusing on S/S-type WPT system is proposed. The steady-state circuit model is established by considering higher harmonics. Based on the circuit model, the relationship between the circuit parameters and the state variables is obtained. Further, the load and the mutual inductance identification is achieved by using Genetic Algorithm. In addition, the identification method can be achieved without extra circuits. As a result, the system cost and volume are decreased, and circuit complexity is reduced. Finally, the simulation and experimental results have verified the proposed method.
[1] 黄学良, 谭林林, 陈中, 等. 无线电能传输技术研究与应用综述[J]. 电工技术学报, 2013, 28(10): 1-11. Huang Xueliang, Tan Linlin, Chen Zhong, et al.Review and research progress on wireless power transfer technology[J]. Transactions of China Electrotechnical Society, 2013, 28(10): 1-11. [2] 杨庆新, 章鹏程, 祝丽花, 等. 无线电能传输技术的关键基础与技术瓶颈问题[J]. 电工技术学报, 2015, 30(5): 1-8. Yang Qingxin, Zhang Pengcheng, Zhu Lihua, et al.Key fundamental problems and technical bottlenecks of the wireless power transmission technology[J]. Transactions of China Electrotechnical Society, 2015, 30(5): 1-8. [3] 侯佳, 陈乾宏, 任小永, 等. S/SP非接触谐振变换器的时域特性分析[J]. 中国电机工程学报, 2015, 35(8): 1983-1992. Hou Jia, Chen Qianhong, Ren Xiaoyong, et al.Key technologies and applications of wireless power transmission[J]. Proceedings of the CSEE, 2015, 35(8): 1983-1992. [4] 程时杰, 陈小良, 王军华, 等. 无线输电关键技术及其应用[J]. 电工技术学报, 2015, 30(19): 68-84. Cheng Shijie, Chen Xiaoliang, Wang Junhua, et al.Key technologies and applications of wireless power transmission[J]. Transactions of China Electro- technical Society, 2015, 30(19): 68-84. [5] Su Yugang, Zhou Wei, Hu Aiguo Patrick, et al.Full-duplex communication on the shared channel of a capacitively coupled power transfer system[J]. IEEE Transactions on Power Electronics, 2017, 32(4): 3229-3239. [6] 麦瑞坤, 陈阳, 刘野然. 基于变补偿参数的IPT恒流恒压电池充电研究[J]. 中国电机工程学报, 2016, 36(21): 5816-5821. Mai Ruikun, Chen Yang, Liu Yeran, et al.Com- pensation capacitor alteration based IPT battery charging application with constant current and constant voltage control[J]. Proceedings of the CSEE, 2016, 36(21): 5816-5821. [7] Zhang Xian, Yuan Zhanyang, Yang Qingxin, et al.Coil design and efficiency analysis for dynamic wireless charging system for electric vehicles[J]. IEEE Transactions on Magnetics, 2016, 52(7): 1-4. [8] Daniel Arnitz, Matthew S Reynolds.MIMO wireless power transfer for mobile devices[J]. IEEE Pervasive Computing, 2016, 15(4): 36-44. [9] 尹成科, 徐博翎. 植入式人工心脏无线电能传输研究进展[J]. 电工技术学报, 2015, 30(19): 103-109. Yin Chengke, Hsu Polin.Wireless power transfer for implantable ventricular assistance: a review[J]. Transactions of China Electrotechnical Society, 2015, 30(19): 103-109. [10] M Rubel Basar, Mohd Yazed Ahmad, Jongman Cho M R B, et al. Stable and high-efficiency wireless power transfer system for robotic capsule using a modified Helmholtz coil[J]. IEEE Transactions on Industrial Electronics, 2017, 64(2): 1113-1122. [11] Jason E I James, Alex Chu, Daniel Robertson, et al. A series tuned high power IPT stage lighting controller[C]// 2011 IEEE Energy Conversion Congress and Exposition (ECCE), Phoenix, AZ, USA, 2011, DOI: 10.1109/ECCE.201.6064151. [12] Hunter H Wu, Grant A Covic, John T Boys, et al.A series-tuned inductive-power-transfer pickup with a controllable AC-voltage output[J]. IEEE Transactions on Power Electronics, 2011, 26(1): 98-109. [13] 夏晨阳, 庄裕海, 卢振洲, 等. 高瓦斯矿井无线供电系统安全容量研究[J]. 电工技术学报, 2013, 28(增刊2): 71-74. Xia Chenyang, Zhuang Yuhai, Lu Zhenzhou, et al.Research of safety capability for wireless power supply system used in high gas mine[J]. Transactions of China Electrotechnical Society, 2013, 28(S2): 71-74. [14] Su Yugang, Zhang Hongyan, Wang Zhihui, et al.Steady-state load identification method of inductive power transfer system based on switching capa- citors[J]. IEEE Transactions on Power Electronics, 2015, 30(11): 6349-6355. [15] Yin Jian, Lin Deyan, Thomas Parisini, et al.Front-end monitoring of the mutual inductance and load resistance in a series-series compensated wireless power transfer system[J]. IEEE Transactions on Power Electronics, 2016, 31(10): 7339-7352. [16] Jeff Po-Wa Chow, Henry Shu-Hung, Chun-Sing Cheng. Use of transmitter-side electrical information to estimate mutual inductance and regulate receiver- side power in wireless inductive link[J]. IEEE Transactions on Power Electronics, 2016, 31(9): 6079-6091. [17] Wang Zhihui, Li Yupeng, Sun Yue, et al.Load detection model of voltage-fed inductive power transfer system[J]. IEEE Transactions on Power Electronics, 2013, 28(11): 5233-5243. [18] Yin Jian, Lin Deyan, Lee Chi-Kwan, et al.A systematic approach for load monitoring and power control in wireless power transfer systems without any direct output measurement[J]. IEEE Transactions on Power Electronics, 2015, 30(3): 1657-1667. [19] 苏玉刚, 陈龙, 王智慧, 等. 基于最小二乘法的感应电能无线传输系统负载辨识方法[J]. 电工技术学报, 2015, 30(5): 9-14. Su Yugang, Chen Long, Wang Zhihui, et al.A load identification method for inductive power transfer system based on least squares algorithm[J]. Transa- ctions of China Electrotechnical Society, 2015, 30(5): 9-14. [20] Yin Jian, Lin Deyan, Chi-Kwan Lee, et al.Front-end monitoring of multiple loads in wireless power transfer systems without wireless communication systems[J]. IEEE Transactions on Power Electronics, 2016, 31(3): 2510-2517. [21] 孙凤艳, 王友仁, 林华, 等. 基于频域建模与遗传算法的电力电子电路参数辨识方法[J]. 电工技术学报, 2011, 26(11): 99-104. Sun Fengyan, Wang Youren, Lin Hua, et al.Parameter identification of power electronic circuit based on transfer function model and genetic algorithm[J]. Transactions of China Electrotechnical Society, 2011, 26(11): 99-104.
2018, Vol. 33 
