摘要
由于LCL-S型无线电能传输(WPT)系统具有初级恒流输出特性以及次级恒压输出特性,故其已经在WPT系统中得到了广泛应用。但是,在系统轻载时,逆变器输出电流存在畸变,此为LCL-S型WPT系统的固有缺点。针对此问题,在不影响WPT系统原特性的基础上,此处提出两种改进方法,并分析改进后系统的工作原理以及可取得的良好效果。最后,通过仿真分析和实验证明理论分析的正确性。
Because of the LCL-S wireless power transmission(WPT) system has the characteristics of constant primary current and secondary voltage,it has been widely used.However,when the system is light loaded,the output current of the inverter is distorted,which is the inherent shortcoming of the LCL-S WPT system.To solve this problem,two improved methods are proposed on the basis of not affecting the original characteristics of the system.The working principle of the improved methods and the rewarding results can be obtained theoretically.Finally, simulation analysis and experimental results can prove the correctness of the theoretical analysis.
引文
[1]马皓,孙轩.原副边串联补偿的电压型耦合电能传输系统设计[J].中国电机工程学报,2010,30(15):48-52.
[2]唐晓雯,姚钢,姚长征,等.基于LCL补偿的非接触电能传输系统的研究[J].电力电子技术,2015,49(10):7-10.