Title :
A new flux weakening control algorithm for interior permanent magnet synchronous motors
Author :
Zeng, Zhaohui ; Zhou, E. ; Liang, D.T.W.
Author_Institution :
Dept. of Electr. Eng., Southeast Univ., Nanjing, China
Abstract :
The operation range of interior permanent magnet synchronous (IPM) motors is mainly limited by the saturation of the inverter. In order to extend the operation range of IPM motors, a flux weakening control algorithm should be employed. The terminal voltage ratio is defined to determine the saturation of the inverter. The flux weakening operation region can be directly determined by monitoring the terminal voltage ratio. A new flux weakening control algorithm is now derived based on minimal terminal voltage ratio. This method can make the utmost use of the inverter capacity, and it can greatly extend the operation range of IPM motors. Simulation results by means of these methods are provided and compared with the conventional schemes
Keywords :
invertors; machine control; magnetic flux; magnetic variables control; permanent magnet motors; synchronous motors; flux weakening control algorithm; interior permanent magnet synchronous motors; inverter capacity; inverter saturation; minimal terminal voltage ratio; monitoring; terminal voltage ratio; Current control; Equations; Influenza; Inverters; Monitoring; Permanent magnet motors; Steady-state; Synchronous motors; Torque; Voltage control;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1996., Proceedings of the 1996 IEEE IECON 22nd International Conference on
Conference_Location :
Taipei
Print_ISBN :
0-7803-2775-6
DOI :
10.1109/IECON.1996.566047
