Title :
A speed fluctuation reducing method for sensorless PMSM-compressor system in air-conditioners
Author :
Zhang, Meng ; Zhao, Tiefu ; Liu, Zhichao ; Li, Yongdong ; Huang, Lipei
Author_Institution :
Dept. of Electr. Eng. & Appl. Electron., Tsinghua Univ., Beijing
Abstract :
This paper presents a speed fluctuation reducing method for sensor-less PMSM-compressor system in air-conditioners. The rotor speed and position are estimated based on model reference adaptive system(MRAS) method. A combined control method for the q-axis reference current is proposed to resolve the dilemma of PI tuning problems in conventional vector control system and reduce the speed fluctuation. Simulation and experimental results show the good performance of the proposed method
Keywords :
PI control; air conditioning; compressors; electric current control; machine vector control; matrix algebra; model reference adaptive control systems; permanent magnet motors; synchronous motors; PI tuning problems; air-conditioners; combined control method; model reference adaptive system; position estimation; q-axis reference current; sensorless PMSM-compressor system; speed fluctuation reduction; speed fluctuation reduction method; vector control system; Adaptive systems; Control systems; Electrical equipment industry; Equations; Fluctuations; Machine vector control; Permanent magnet motors; Rotors; Synchronous motors; Torque;
Conference_Titel :
Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on
Conference_Location :
Nanjing
Print_ISBN :
7-5062-7407-8
DOI :
10.1109/ICEMS.2005.202884
