动态非线性负载用单管逆变ICPT系统参数优化

The Parameter Optimization of Single Switch Inverter ICPT System for Dynamic Nonlinear Load

针对单管感应耦合电能传输(ICPT)系统在动态非线性负载突变时开关管电压、输出电压的稳定性问题,详细研究了具有一次侧并联二次侧串联(PS)补偿网络的单管ICPT系统的参数优化问题。比较了分别具有一次侧并联二次侧并联(PP)补偿网络与PS补偿网络的单管ICPT系统的特点;画出了所研究系统的一、二次侧等效电路,利用互感等效模型法对该系统进行了建模分析,推导了系统的电压增益、输出功率、效率等表达式,画出并分析了电压增益、输出功率、开关管峰值电压在不同参数变化下随工作频率变化的曲线;最后完成了系统参数的优化设计,使系统在软开关控制下得到了最大功率输出,实验验证了设计的正确性。

Aiming at the stability problem of switch voltage and output voltage, when the single switch inductively coupled power transfer （ICPT） system dynamic nonlinear load suddenly change. The parameter optimization problem of single switch ICPT system with primary parallel secondary series （PS） compensation network is studied in detail. The characteristics of a single switch ICPT system with primary side parallel parallel （PP） compensation network or PS compensation network are compared respectively. The original and secondary equivalent circuits of the system are drawn. The system is modeled by mutual inductance equivalent model method. The expressions of voltage gain, output power and efficiency of the system are deduced. The curve of voltage gain, output power, switch peaks voltage with the operating frequency changing at different parameters are drawn and analyzed. Eventually the parameter optimization design of the system is completed. Under the soft switch control system get the maximum power output is got. Experiment verified the correctness of the design.