【摘要】 为了实现电动汽车无线充电系统的功率控制,本文采用T型解耦与受控源等效分析的方法对集成LCC补偿拓扑进行分析,得到此种拓扑在系统参数确定的情况下输出为恒流源的特性,并获得了系统传输功率的表达式。基于拓扑分析,提出了通过以BUCK电路输入电压反馈来对无线充电系统进行功率控制的方法,设计了恒功率充电与恒电流充电两种充电模式,并在实验中对此方法进行了验证。更多还原

【Abstract】 To control the power transfer process in wireless charging for electric vehicles,the integrated LCC topology is analyzed by the method of T-shape decoupling and controlled source equivalence in this paper.The output of such topology can be regarded as a constant current source when the system parameters are determined,and the expression of the transferred power is also obtained by circuit analysis.Based on the theoretical analysis,apower control method using feedback of the input voltage of the BUCK converter is proposed.Two charging modes,constant-current and constant-power modes are designed,and the power control method is verified by experiment.更多还原