Sensitivity analysis and regulation strategy of current waveform for two-axis compensated compulsators

Weiduo Zhao, Dansong Cheng, Qing Liu, Shumei Cui

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

Abstract

Compulsators have been considered as appropriate pulsed power supplies for electromagnetic railguns. In order to ensure a high projectile peak to mean acceleration ratio, it is desirable to provide a flat-topped pulse for the railgun. This paper analyzes a two-axis compensated compulsator, which is a refined selective passive compulsator having an orthogonal displacement between compensating winding and field winding. During the discharge process, the quadrature-axis compensation is provided by the compensating winding, when direct-axis compensation provided by the field winding. Compare to traditional selective passive configuration, this arrangement is able to provide another degree of freedom to compensate the armature reaction, thus output a current waveform with more flexibility. In this paper, the self-excitation and discharge process of a two-axis compensated air-core compulsator is simulated based on a finite-element model. Analysis of current waveform sensitivity to compulsator design parameters is also carried out, as well as the regulation strategy to generate a flat-topped pulse. The research process mentioned in this paper could help to optimize design of compulsators in future applications.

Original languageEnglish
Title of host publicationConference Proceedings - 2012 16th International Symposium on Electromagnetic Launch Technology, EML 2012
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 16th International Symposium on Electromagnetic Launch Technology, EML 2012 - Beijing, China
Duration: 15 May 201219 May 2012

Publication series

NameConference Proceedings - 2012 16th International Symposium on Electromagnetic Launch Technology, EML 2012

Conference

Conference2012 16th International Symposium on Electromagnetic Launch Technology, EML 2012
Country/TerritoryChina
CityBeijing
Period15/05/1219/05/12

Keywords

  • air-core
  • compulsator
  • FEM
  • pulse shaping
  • sensitivity analysis

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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