The analysis of stator MMF and the calculation of rotor losses in a 12-phase high speed asynchronous generator

Author

Luo, Cheng ; Wang, Xiangheng ; Ning, Puqi

Author_Institution

State Key Lab. of Control & Simulation of Power Syst. & Generation Equip., Tsinghua Univ., Beijing, China

Volume

1

fYear

2005

fDate

27-29 Sept. 2005

Firstpage

690

Abstract

To research the influence of multi-phase winding to generators and calculate the losses in solid rotors, the stator MMF of a 12-phase asynchronous generator have been well analyzed and finite element method by ANSYS software has been applied to get the accurate losses in the rotor through both harmonic and transient 2-D analysis. The relationship between stator harmonic current and stator harmonic MMF has been deduced and proved through ANSYS software to some extent, and rotor losses produced by both stator fundamental current and stator total current have also been obtained and compared. The results show that 12-phase stator winding with appropriate short pitch can effectively eliminate or reduce many MMF produced by stator fundamental and harmonic current and rotor losses are mainly produced by stator fundamental current.

Keywords

asynchronous generators; electric machine analysis computing; finite element analysis; harmonic analysis; rotors; stators; 12-phase high speed asynchronous generator; ANSYS software; finite element method; harmonic analysis; multiphase winding; rotor loss calculation; stator harmonic MMF; stator harmonic current; transient 2D analysis; Analytical models; Finite element methods; Harmonic analysis; Laboratories; Rotors; Solid modeling; Stator windings; Transient analysis; Asynchronous generator; finite element calculation.; multi-phase winding; rotor losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems, 2005. ICEMS 2005. Proceedings of the Eighth International Conference on

Print_ISBN

7-5062-7407-8

Type

conf

DOI

10.1109/ICEMS.2005.202620

Filename

1574853