A Novel DC Bias Excited Machine with Integrated Winding

Shuangxia Niu, Qingsong Wang, Xing Zhao

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

A new class of electric machines is proposed in this paper, which is developed from the DC excited reluctance machine with variable flux. The improvement is that field winding and armature winding are integrated in the proposed design, which can simplify the winding structure and eliminate the external DC power supply. The integrated winding is applied with original sinusoidal current plus DC bias component. The function of AC sinusoidal current is to generate rotating magnetic field, and the excitation field is provided by the stationary DC bias current. By changing the value of DC bias current, we can adjust the allocation of DC bias and armature current flexibly, and improve the torque performance during flux weakening operation. The rotor is mechanically robust because it only has salient poles, and can modulate the air-gap flux because of the different permeance of air and iron pole. Therefore, the magnetic fields produced by the armature current and the DC bias can be coupled effectively to generate electromagnetic torque. The electromagnetic performance of this machine is systematically investigated through finite element analysis. Comparative study is conducted between the proposed DC bias excited machine and its variable flux machine counterpart.

Original languageEnglish
Title of host publication2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728133980
DOIs
Publication statusPublished - Aug 2019
Event22nd International Conference on Electrical Machines and Systems, ICEMS 2019 - Harbin, China
Duration: 11 Aug 201914 Aug 2019

Publication series

Name2019 22nd International Conference on Electrical Machines and Systems, ICEMS 2019

Conference

Conference22nd International Conference on Electrical Machines and Systems, ICEMS 2019
Country/TerritoryChina
CityHarbin
Period11/08/1914/08/19

Keywords

  • DC bias
  • flux weakening
  • integrated winding
  • variable flux reluctance machine

ASJC Scopus subject areas

  • Control and Optimization
  • Energy Engineering and Power Technology
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering

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