Investigation on Leading Angle Flux Weakening Control of Brushless DC Motor

摘要：

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.

关键词： Brushless DC motor leading angle conduction flux weakening control

作者: Li Guanxiong Liu Jinglin Wang Shuaifu

作者单位: College of Automation, Northwestern Polytechnical University Xian 710072, China

会议类型: 国际会议

会议名称: 2010 International Conference on Measuring Technology and Mechatronics Automation(ICMTMA 2010)(2010年检测技术与机电自动化国际会议)

会议地点: 长沙

会议语种:英文

页码: 1649-1652

在线出版日期: 2010-03-13（万方平台首次上网日期，不代表论文的发表时间）