Research on a control method based on double pick-up in a DWPT system

被引：0
|
作者：
Li C. [1 ]
Zhou K. [1 ]
Shi Z. [1 ]
机构：
[1] School of Electrical Engineering, Southwest Jiaotong University, Chengdu
来源：
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | 2020年 / 48卷 / 21期
基金：
中国国家自然科学基金;
关键词：
Double pick-up coils; Dynamic wireless power transfer (DWPT); Mutual inductance estimation;
D O I：
10.19783/j.cnki.pspc.191526
中图分类号：
学科分类号：
摘要：
In order to improve the control speed of a Dynamic Wireless Power Transfer (DWPT) system and ensure voltage stability and high efficiency of the system during dynamic charging, a control method is proposed based on estimation of mutual inductance of a double pick-up coupling structure. By building the mathematical model of output voltage and power, the relationship between the optimal duty cycle and parameters including mutual inductance and equivalent series resistance of each pickup circuit is revealed. A closed-loop control method by directly calculating the duty cycle is presented. In the case of no communication connection with the transmitting side, the proposed control method can improve the control speed of the pick-up circuit and realize constant output voltage and efficiency optimization simultaneously. The experimental results show that with the proposed control method, the output voltage at the load side is constant during load moving. The output voltage fluctuation is within ±0.988%, and the maximum efficiency of the system is 93.18%. The experimental results have verified the validity of the proposed control method. © 2020, Power System Protection and Control Press. All right reserved.
引用
收藏
页码：149 / 156
页数：7
相关论文
共 25 条
  • [1] MAI Ruikun, MA Linsen, Research on inductive power transfer systems with dual pick-up coils, Proceedings of the CSEE, 36, 19, pp. 5192-5199, (2016)
  • [2] AHN D, HONG S., Wireless power transmission with self-regulated output voltage for biomedical implant, IEEE Transactions on Industrial Electronics, 61, 5, pp. 2225-2235, (2014)
  • [3] ZHANG W, WONG S, TSE C, Et al., Design for efficiency optimization and voltage controllability of series-series compensated inductive power transfer systems, IEEE Transactions on Power Electronics, 29, 1, pp. 191-200, (2014)
  • [4] LI Y, MAI R, LU L, Et al., Harmonic elimination and power regulation based five-level inverter for supplying IPT systems, 2015 IEEE PELS Workshop on Emerging Technologies: Wireless Power (2015 WoW), pp. 1-4
  • [5] PATIL D, MCDONOUGH M K, MILLER J M, Et al., Wireless power transfer for vehicular applications: overview and challenges, IEEE Transactions on Transportation Electrification, 4, 1, pp. 30-37, (2018)
  • [6] ZHANG Zhonghui, HU Guobao, LI Ruixin, Optimization of distributed power supply considering electric vehicle access, Power System Protection and Control, 46, 6, pp. 120-127, (2018)
  • [7] WANG Xin, ZHOU Buxiang, TANG Hao, Orderly charge and discharge control strategy of electric vehicle considering user factors, Power System Protection and Control, 46, 4, pp. 129-137, (2018)
  • [8] ZHU Xiaopeng, WEI Zhinong, YAN Quanchun, Et al., Control strategy of electric vehicle based on virtual inertia adaptive algorithm, Power System Protection and Control, 47, 22, pp. 134-141, (2019)
  • [9] JEONG S Y, PARK J H, HONG G P, Et al., Autotuning control system by variation of self-inductance for dynamic wireless EV charging with small air gap, IEEE Transactions on Power Electronics, 34, 6, pp. 5165-5174, (2019)
  • [10] LI H, LIU Y, ZHOU K, Et al., Uniform power IPT system with three-phase transmitter and bipolar receiver for dynamic charging, IEEE Transactions on Power Electronics, 34, 3, pp. 2013-2017, (2019)
123