不同补偿方式下MCPT系统功率传输特性研究

Research on the Transmission Characteristics of MCPT Power System in Different Compensation Modes

针对运动式非接触电能传输系统(MCPT)运行过程中负载、互感波动变化的问题,建立了互感电路模型,对不同拓扑补偿方式下功率传输特性进行了研究。由运动式非接触电能传输系统的互感电路模型推导出不同拓扑补偿方式下的传输功率表达式,并由传输功率特性曲线得出:一次侧采用串联补偿方式时传输功率较大;对一次侧采用串联补偿形式的2种补偿方式从传输效率方面进行比较,并通过仿真电路进行验证,得出了采用SS补偿方式时其传输效率稳定性较好;最后确定了运动式非接触电能传输系统应采用SS补偿方式。

A mutual inductance circuit model is established to research on the transrmsslon cnaracLz,,~uu~ ~, power system in different compensation modes for the fluctuation of load and mutual inductance of the movable no- contact power transmission system. The transmission power expressions in different topology compensation modes are derived by the mutual inductance circuit model and the primary side in series compensation can transfer larger power according to the transmission power curves. Two kinds of compensation ways which the primary side is in series compensation are compared from the aspects of the transmission efficiency and SS compensation way is proved to have a more stable in transmission efficiency. SS compensation way is adopted as the most suitable way for the motive ICPT power system.