基于相位补偿因子的负载变化下无传感器感应电机驱动低频穿越方法

This article deals with speed observation methods for sensorless induction motor drives (SIMDs). The speed observability of SIMD near zero stator frequency is a well-known concern. Using adaptive magnetizing current, existing methods are capable of crossing the zero-stator-frequency line, but still limited to constant load conditions. To solve these problems, this article presents a phase compensa...