Investigation on Leading Angle Flux Weakening Control of Brushless DC Motor

Author

Li Guanxiong ; Liu Jinglin ; Wang Shuaifu

Author_Institution

Coll. of Autom., Northwestern Polytech. Univ., Xi´an, China

Volume

2

fYear

2010

fDate

13-14 March 2010

Firstpage

524

Lastpage

527

Abstract

Brushless DC motor (BLDCM) is hard to achieve field weaking operation by its intrinsical structure. The paper aim is researching of BLDCM field weakening technology. The distribution of air-gap flux density is properly used in leading angle flux weakening control of BLDCM. The key step of Flux Weakening Control is to conquer the limit of rising back EMF towards the rise of current. This paper analyzes the major affect reasons of flux weakening characteristic and gives an improved method. Experiment results agree with calculation results, proving the realization of above basic velocity operation of BLDCM in constant power state.

Keywords

brushless DC motors; electric potential; magnetic flux; BLDCM basic velocity; BLDCM field weakening technology; air-gap flux density; back EMF; brushless DC motor; constant power state; intrinsical structure; leading angle flux weakening control; Automation; Brushless DC motors; Mechatronics; Brushless DC motor; flux weakening control; leading angle conduction;

fLanguage

English

Publisher

ieee

Conference_Titel

Measuring Technology and Mechatronics Automation (ICMTMA), 2010 International Conference on

Conference_Location

Changsha City

Print_ISBN

978-1-4244-5001-5

Electronic_ISBN

978-1-4244-5739-7

Type

conf

DOI

10.1109/ICMTMA.2010.146

Filename

5458824