永磁同步電動機由于其固有的優點, 得到了廣泛的應用。本文討論了永磁同步電動機調速系統中廣泛采用的無位置傳感器技術。無位置傳感器可以分為兩大類: 基于電磁關系和基于各種觀測器技術的無位置傳感器技術, 目前主要的工作是提高調速精度和魯棒性以及改善低速段的系統性能。
關鍵詞: 永磁同步電動機; 無位置傳感器; 控制技術
Abstract: Because of its inherent merit, the permanent - magnet synch ronous mo to r is w idely used. Th is paper discus the mechanical - senso rless techniques, w h ich are w idely used in the permanent - magnet synch ronous mo to r speed cont ro l system. There are two k inds of mechanical- senso rless techniques: the techniques based on elect romagnet ism relat ion and all k inds of observers. Today’s wo rk is to imp rove the p recision of the velocity
modulat ion and the robustness as w ell as the perfo rmance of the system in low speed region.
Key words: permanent- magnet synch ronousmo to r; mechanical- senso rless; cont ro l techniques