用于永磁同步电机驱动谐波电流抑制的离散时间频域扰动观测器及其低延迟实现

The disturbance observer (DOB) can be employed in electric drives to improve disturbance rejection. The Q-filter of classical frequency-domain DOBs to attenuate multiple harmonic disturbances is high order and faces issues, including discretization, numerical precision, and frequency adaption; thus, its realization in variable-speed drives would be challengeable. This article proposes a discrete-t...