【摘要】 以推挽式电压型SPWM(Sine Pulse Width Modulation)逆变器为例,由动态有效漏感的假设并结合开关器件通断状况提出了推挽变压器的一种数学模型,讨论了漏感的时空属性,阐明了漏感作用时间、涉及空间与线圈间能量流向的关系,提供了仿真和实验结果。更多还原

【Abstract】 This paper presents a mathematical model of the push-pull transformer,considering the on-off status of switching devices,as well as the assumption of dynamic and effective leakage inductance.The push-pull voltage source SPWM inverter is taken as an example to illustrate.The model discusses the time and space characteristic of the leakage inductance,and clarifies the relationship among the action time,associated coil and the direction of the energy flow within windings.Simulation and experimental results are provided.更多还原