永磁同步电机无传感器控制的固定时间高阶动态观测策略

This article presents a fixed-time high-order dynamic observation strategy which possesses the fixed time convergence feature. It mainly includes two aspects: 1) introducing dynamic surface into high-order sliding mode and 2) semiglobal fixed time uniformly ultimately bounded stability in backstepping dynamic surface design. Besides, this strategy is adopted to design a novel cascade fixed-time sl...