Title :
A modified flux estimation algorithm for sensorless AC motor drives over a wide speed range
Author :
Qiankun Chang ; Qiongxuan Ge ; Shutian Zhang
Author_Institution :
Key Lab. of Power Electron. & Electr. Drive, Inst. of Electr. Eng., Beijing, China
Abstract :
A modified algorithm for estimating motor flux based on the stator model are proposed in this paper. This algorithm is effective to solve the problems associated with the integration of the back electromotive force (emf), and can be used in sensorless ac motor drives over a wide speed range. The effect of parameters used in this algorithm is studied and the parameters are all assigned to appropriate values. The performance of the algorithm is evaluated by simulation and experiment.
Keywords :
AC motor drives; electric potential; EMF; back electromotive force; modified flux estimation algorithm; motor flux estimation; sensorless AC motor drives; sensorless ac motor drives; stator model; vector-controlled ac motor drives; wide speed range; AC motors; Algorithm design and analysis; Band-pass filters; Couplings; Heuristic algorithms; Stators; Steady-state;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2013 International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4799-1446-3
DOI :
10.1109/ICEMS.2013.6713174
