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

Volume

2

fYear

1996

fDate

5-10 Aug 1996

Firstpage

1183

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/IECON.1996.566047

Filename

566047