基于虚拟电压信号注入全阶状态观测器的内嵌式永磁同步电机零速无传感器控制方法

The model-based sensorless control method of interior permanent magnet synchronous motor (IPMSM) fails at zero speed due to unobservability. In this article, a full-order state observer with virtual voltage signal injection is proposed to realize the zero-speed sensorless control under rated load for IPMSM drives. The local weak observability criterion of motor speed is established by the nonlinea...