DocumentCode :
3006599
Title :
Fuzzy stator resistance estimator for a direct torque controlled interior permanent magnet synchronous motor
Author :
Xu, Yanping ; Zhong, Yanru ; Li, Jie
Author_Institution :
Dept. of Electr. Eng., Xi´´an Univ. of Technol., China
Volume :
1
fYear :
2005
fDate :
27-29 Sept. 2005
Firstpage :
438
Abstract :
Direct torque control (DTC) of interior permanent magnet synchronous motor (IPMSM) uses the motor stator resistance to estimate the stator flux. The variation of stator resistance due to changes in temperature or frequency deteriorates the performance of DTC controller by introducing errors in the estimated flux linkage and the electromagnetic torque. A novel stator resistance estimator during the operation of the motor is proposed. By means of comparing the actual current and the reference current, the change of stator resistance can be estimated. The estimation method is implemented using fuzzy logic control schemes. Simulation results obtained clearly demonstrate the effectiveness of the estimator in estimating the stator resistance and improving performance of DTC.
Keywords :
electric resistance; fuzzy control; machine control; permanent magnet motors; stators; synchronous motors; torque control; direct torque control; electromagnetic torque; flux linkage estimation; fuzzy logic control schemes; fuzzy stator resistance estimator; interior permanent magnet synchronous motor; motor stator resistance; stator flux estimation; Couplings; Error correction; Frequency estimation; Fuzzy control; Fuzzy logic; Permanent magnet motors; Stators; Synchronous motors; Temperature control; Torque control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Print_ISBN :
7-5062-7407-8
Type :
conf
DOI :
10.1109/ICEMS.2005.202564
Filename :
1574797
Link To Document :
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