【摘要】 从传统空间矢量脉宽调制电压型逆变器换向序列的定子磁链脉动出发,研究了不同换向序列的定子磁链均方根脉动大小,并根据脉动量最小的原则,提出了一种新型的混合空间矢量脉宽调制方法。该方法将每个磁链扇区分成五个不同的区域,每个区域采用不同的换向序列,从而极大地减小了磁链的脉动。仿真结果表明该方法是行之有效的,并为进一步研究直接转矩的性能改善奠定了基础。更多还原

【Abstract】 Based on stator flux ripple of different switching sequences in conventional space vector PWM,the root mean square (RMS) ripple of different switching sequences was discussed,then according to the principle of minimizing RMS ripple,a new hybrid SVPWM was proposed. Each sector was divided into five different areas,employing the different sequences in different areas,this scheme greatly reduces the flux ripple. The simulation verified that the new Hybrid SVPWM technology is a effective method,this lays simulation foundation for research of performance improving of direct torque control(DTC).更多还原