Design and analysis of a low voltage regulation PM brushless DC generator

Author

Wenjun Yu ; Zhuoran Zhang

Author_Institution

Jiangsu Provincial Key Lab. of New Energy Generation & Power Conversion, Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2012

fDate

21-24 Oct. 2012

Firstpage

1

Lastpage

6

Abstract

In this paper, the main factors to influence the voltage regulation of a new permanent magnet (PM) brushless DC generator are investigated, and magnetic field analysis of the influence of magnet thickness and air-gap length to the voltage regulation is carried out based on finite element method (FEM). According to the conditions for low voltage regulation with resistive load, the methods of reducing the voltage regulation of a PM generator by designing the proper parameters of the machine are proposed. A low-voltage-regulation prototype PM generator is developed, and the experimental results are given to verify the validity of theoretical analysis and simulation results.

Keywords

DC generators; air gaps; brushless machines; finite element analysis; load regulation; machine control; voltage control; FEM; air-gap length; finite element method; low voltage regulation PM brushless DC generator; magnet thickness; magnetic field analysis; permanent magnet; resistive load regulation; Magnetic analysis; Saturation magnetization; Stators; 12-phase BLDC; equivalent magnetic circuit method; saturated generator; voltage regulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2012 15th International Conference on

Conference_Location

Sapporo

Print_ISBN

978-1-4673-2327-7

Type

conf

Filename

6401944