电流型IPT系统广义状态空间平均法建模与分析

Modeling and Analysis of Current-fed IPT System by Generalized State Space Averaging Method

针对目前关于感应电能传输(IPT)系统建模存在的不足,采用广义状态空间平均法建立了电流型IPT系统的线性定常平均模型。基于该模型,根据线性系统理论方法,分析了系统状态变量的运动规律。此外,还分析了等效负载变化时的稳定性和对副边输出电压的影响,以及不同互感参数及副边电感下的传输功率和效率。结果表明,本文的建模方法和分析结果对于电流型IPT系统的实际运动行为有较强的理论指导意义及对系统的设计具有一定的参考价值。

The linear time-invariant average model about the current-fed IPT system is established using generalized state space averaging method. Based on this model and linear system theory, movement rules about system state variables are analyzed. Stability and secondary out- put voltage are analyzed when equivalent load changes. Furthermore, transmission power and efficiency with different mutual inductance or secondary inductance are analyzed. It has theoretical significance to the current-fed IPT system＇s actual movement and the certain reference value to the design of the system by means of the paper＇s modeling method and all analytical results.