Design of Halbach hybrid excitation compulsator

Shaopeng Wu, Shumei Cui, Weiduo Zhao

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


Pulsed alternators integrate kinetic energy storage, electromechanical energy conversion and pulse shaping in one unit, and it is the research focused on the field of pulsed power sources. The electrical excitation and the permanent magnet excitation are contained in one hybrid excitation pulsed generator together in which the advantages of two different excitation types are integrated. The brush slip ring mechanism with low reliability and high maintenance costs can be cancelled. And the electromagnetic field can be adjusted quickly by external electrical excitation source and correspondingly the performance can be quickly adjusted. An all-iron-core hybrid excitation compulsator prototype had been designed, fabricated and optimized. The hybrid excitation concept was validated in the research of compulsator. Although the compulsator researches are mainly focused on the all-air-core electrical excitation topology, there exist some bottleneck technologies which restrict the application of compulsator in actual fields. The hybrid excitation compulsator can decrease the cost, increase the reliability and widen the application scope of compulsator, especially in the middle-low power range. Halbach array is a permanent magnet arrangement structure which is a combination structure of different directions arrays. The Halbach array offers a number of attractive features in comparison with the normal array one. And the air-gap magnetic flux can be increased and the rotor yoke magnetic flux is decreased. Based on it, the Halbach array can be designed on the composite rotor core. A part-air-core compulsator which includes an air-core rotor and an iron-core stator was designed. For analyzing the electromagnetic design results, the three dimensional model was built and finite element analysis method was used. The performances simulation results of the Halbach hybrid excitation compulsator were presented.

Original languageEnglish
Title of host publicationConference Proceedings - EML 2014 17th International Symposium on Electromagnetic Launch Technology
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479927333
Publication statusPublished - 10 Oct 2014
Externally publishedYes
Event2014 17th International Symposium on Electromagnetic Launch Technology, EML 2014 - San Diego, United States
Duration: 7 Jul 201411 Jul 2014

Publication series

NameConference Proceedings - EML 2014 17th International Symposium on Electromagnetic Launch Technology


Conference2014 17th International Symposium on Electromagnetic Launch Technology, EML 2014
Country/TerritoryUnited States
CitySan Diego

ASJC Scopus subject areas

  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Computer Networks and Communications


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