Title :
A novel method to control square wave BLDCM running in constant power way
Author :
Xiaoqing, Song ; Defu, Sun ; Kemao, Zhang ; Hua, Li
Author_Institution :
Armored Force Eng. Inst., Beijing, China
Abstract :
As far as the brushless DC motor (BLDCM) with porcelain steel fixed on the surface is concerned, the armature reaction is weak due to large machine equivalent air gap and weak armature reaction, so the effect of the machine´s constant power operation by armature reaction is not very obvious. The author puts forward a digital control method to realize constant power operation. Based on the nonlinear control object, fuzzy control rules are adopted and a stable fuzzy controller is designed. The method does not require a change of hardware and is very easy to implement. The results of computer simulation and experiments prove that this method is both feasible and valid
Keywords :
brushless DC motors; control system analysis computing; control system synthesis; digital control; electric machine analysis computing; equivalent circuits; fuzzy control; machine control; machine theory; nonlinear control systems; power engineering computing; armature reaction; brushless DC motor; constant power operation; control design; control simulation; digital control method; equivalent air gap; fuzzy control rules; nonlinear control object; porcelain steel; stable fuzzy controller; Control systems; Digital control; Digital signal processing; Equations; Fuzzy control; Open loop systems; PD control; Pulse width modulation; Stability; Torque control;
Conference_Titel :
Electrical Machines and Systems, 2001. ICEMS 2001. Proceedings of the Fifth International Conference on
Conference_Location :
Shenyang
Print_ISBN :
7-5062-5115-9
DOI :
10.1109/ICEMS.2001.971911
