摘要
传统的两电平脉冲宽度调制会产生较高的共模电压,对变频调速设备产生共模干扰。结合预测控制,提出弃用零矢量预测控制调制策略,能有效地抑制逆变器输出的共模电压。仿真验证了算法的正确性,对进一步研究抑制两电平变频调速系统的共模干扰有一定的参考阶值。
The traditional two-level pulse width modulation would result in higher common mode voltage, which disturbs the frequency conversion drive device. Proposes a new suppressing common-mode voltage modulation strategy by combing predictive control and abandoning zero vector method. And the new strategy is verified by simulation. It is referential to the further study of suppressing common mode voltage of two-level frequency drive system.
出处
《煤矿机电》
2014年第5期58-59,64,共3页
Colliery Mechanical & Electrical Technology
关键词
共模电压
零矢量
预测控制
common-mode voltage
zero vector
predictive control
