电源学报2024，Vol.22Issue(z1)：217-225,260,10.DOI:10.13234/j.issn.2095-2805.2024.S1.217
全方向WPT系统磁耦合参数识别方法研究
Research on Identification Method for Magnetic Coupling Parameters in Omnidirectional WPT System
刘羽 1余豪华 1苏国栋 2张景海3
作者信息
- 1. 国网浙江宁波市奉化区供电有限公司,宁波 315000
- 2. 重庆华创智能科技研究院有限公司,重庆 402760
- 3. 重庆大学自动化学院,重庆 400044
- 折叠
摘要
Abstract
The magnetic coupling parameters between the receiving and transmitting ends in an omnidirectional three-excitation wireless power transfer ( WPT ) system are important factors affecting the transmission efficiency of the system,and an effective identification of the coupling parameters is the key to the maximum efficiency of the omnidirectional WPT system.In this paper,a mathematical description of the harmonics of inverter output voltage is given when a high-frequency inverter is used as the excitation source of the transmitting coil.Under the condition of a phase shift angle of π/3,the harmonics are ignored,and the output square wave voltage is approximately replaced by a fundamental wave whose waveform has a standard sinusoidal shape.On this basis,a mathematical model of the effective value of current at the transmitting end of the system is derived.An improved genetic algorithm is introduced,the parameter identification problem is converted into a global optimization problem,and the magnetic coupling parameter identification method based on this model is given.Simulation and experimental results verified the feasibility and effectiveness of the proposed method.关键词
改进遗传算法/全方位无线传能/磁耦合参数/辨识方法Key words
Improved genetic algorithm/omnidirectional wireless power transfer( WPT )/magnetic coupling parameter/identification method分类
信息技术与安全科学引用本文复制引用
刘羽,余豪华,苏国栋,张景海..全方向WPT系统磁耦合参数识别方法研究[J].电源学报,2024,22(z1):217-225,260,10.
