谐振极ZVT-PWM三相逆变器的实现及控制策略

对一种改进的用于电机驱动的谐振极零电压过渡脉宽调制（RP ZVT－PWM）三相逆变器电路的工作过程及实现策略进行了详细的分析和实验验证，重点讨论了几种基于空间矢量的改进调制方法，结合表明，为了实现该软开关电路中主开关所有状态的零电压过渡，改进传统的空间矢量调制，所提出的控制策略是切实可行的。

Realization and Control Strategies of Resonant Pole Zero-Voltage-Transition PWM Three-phase Inverter

Operation process, realization strategies of an improved circuit of Resonant Pole Zero Voltage Transition Pulse Width Modulation (PR ZVT PWM) three phase inverter for motor drive are analyzed in detail in this paper, and various modulation modes based on voltage vector are discussed with the emphasis on. The analysis and experimental results indicate that the modification of the conventional space vector modulation (SVM) is necessary to obtain zero voltage condition for main devices in circuit and control strategies proposed in this paper are practicable.