一种利用开关振荡阻尼特征的逆变器驱动电机电力电缆绝缘监测改进方法

Online cable condition monitoring is a reliability enhancement technique for inverter-fed machine systems, which requires high sensitivity with quantitative assessment capability to detect the incipient insulation degradation as early as possible. This article presents a noncontact cable condition monitoring method by utilizing the inverter's self-excited high-frequency (HF) pulsewidth modulation ...