摘要
针对单相三电平逆变器的拓扑结构,引入一种适用于该拓扑结构的单相空间矢量脉宽调制(SPSVPWM)技术,在此基础上推导出单相三电平逆变器的暂态数学模型,从而提出了在一个开关周期内采样两次电流来实现实时电感辨识的方法,将实时电感辨识应用于无差拍控制,提高了无差拍控制的精确性。实验结果证明了该控制策略的正确性和可行性。
For the topology of single-phase three-level inverter, a single-phase space vector pulse width modulation （SPSVPWM） technique is proposed.On the basis, the dynamic mathematical model of the single-phase three-level inverter is derived.Then a real time inductor identification method adopting two current samples in a switch period is proposed.The real time inductor identification result is applied into deadbeat control algorithm,thus its availability is proved.The feasibility and correctness of the method are verified by the experimental results.
出处
《电力电子技术》
CSCD
北大核心
2013年第7期14-16,共3页
Power Electronics
关键词
逆变器
单相
电感辨识
无差拍控制
inverter
single-phase
inductor identification
deadbeat control
