电机与控制学报
電機與控製學報
전궤여공제학보
Electric Machines and Control
2015年
8期
36-40,46
,共6页
永磁同步电机%变滑模增益%参考自适应%观测器
永磁同步電機%變滑模增益%參攷自適應%觀測器
영자동보전궤%변활모증익%삼고자괄응%관측기
permanent magnet synchronous motors%variable sliding-mode gain%model reference adaptive system%observer
针对永磁同步电机宽速度范围的运行需求,提出一种变滑模增益参考自适应( MRAS )无位置控制技术. 采用模糊控制器对PI参数的调整作用,可在电机高、中低速时都有良好的动稳态性能,抑制了角度的低速振荡并减小了高速延迟,提高了高速永磁同步电机宽速度域内的转子位置检测精确度. 与传统PI模型参考自适应观测器相比,此方法更适合转速高、调速范围宽、反电动势系数小的高速永磁同步电机转子位置检测.
針對永磁同步電機寬速度範圍的運行需求,提齣一種變滑模增益參攷自適應( MRAS )無位置控製技術. 採用模糊控製器對PI參數的調整作用,可在電機高、中低速時都有良好的動穩態性能,抑製瞭角度的低速振盪併減小瞭高速延遲,提高瞭高速永磁同步電機寬速度域內的轉子位置檢測精確度. 與傳統PI模型參攷自適應觀測器相比,此方法更適閤轉速高、調速範圍寬、反電動勢繫數小的高速永磁同步電機轉子位置檢測.
침대영자동보전궤관속도범위적운행수구,제출일충변활모증익삼고자괄응( MRAS )무위치공제기술. 채용모호공제기대PI삼수적조정작용,가재전궤고、중저속시도유량호적동은태성능,억제료각도적저속진탕병감소료고속연지,제고료고속영자동보전궤관속도역내적전자위치검측정학도. 여전통PI모형삼고자괄응관측기상비,차방법경괄합전속고、조속범위관、반전동세계수소적고속영자동보전궤전자위치검측.
In order to meet the needs of wide region operation for permanent magnet synchronous motors ( PMSMs) ,a variable gain sliding-mode model reference adaptive system ( MRAS) sensor-less controller was proposed. Making use of fuzzy controller to adjust the parameters of PI regulator, good steady state and dynamic performance was achieved in high, middle and low speed region, and the low-speed angle oscillation in low speed region was attenuated,the speed delay was reduced,and the rotor position detec-tion precision of the high-speed permanent magnet synchronous motor in wide speed region was increased. Compared with the traditional PI model reference adaptive observer, this method is more suitable for high speed, wide speed range, and small back-EMF coefficient permanent magnet synchronous motor rotor po-sition detection.
