基于高频注入的无传感器驱动中高带宽谐波抑制动态锁相自适应陷波观测器

In high-frequency injection-based saliency tracking, harmonic errors arise from nonidealities in interior permanent magnet synchronous motor and inverter. Conventionally, achieving both high-bandwidth observation and reduced low-order harmonics presents an inherent tradeoff. Adaptive notch filter (ANF), featuring harmonic suppression characteristic without affecting the target signal, is gaining i...