多接收端无线电能传输系统动态特性分析及多目标参数优化

Dynamic analysis and multi-objective parameter optimization in multi-receiver wireless power transfer systems

无线电能传输(WPT)技术可有效提高供电过程的安全、可靠和灵活性,使用多接收端拓扑的WPT系统在大容量无接触供电场合(如电动汽车、轨道交通无线充电)得到了越来越广泛的应用。针对现有研究对多接收端WPT系统动态性能分析与优化方面的不足,该文建立了多接收端WPT系统动态模型,并基于动态模型推导了系统参数对稳态、动态性能的影响,进而提出一种多接收端WPT系统参数的多目标优化方法。通过仿真和实验验证了所提出的模型、优化方法的准确性和有效性。

Wireless power transfer(WPT) can improve power supply safety, reliability and flexibility. Multi-receiver WPT systems have many advantages as high power, contactless power supplies for electric vehicle charging, rail transit and other systems. However, dynamic analysis and optimization methods are not well developed for multi-receiver WPT systems. This paper presents a dynamic model for a typical multi-receiver WPT system to analyze the effects of the system parameters on the steady-state and dynamic responses. Then, a multi-objective parameter optimization method is developed for the system based on the dynamic model. Simulations and experiments show that the dynamic model and optimization method are accurate and effective.