A decoupling method for current regulation in bearingless motors using AC suspension current

Kimio Hijikata, Nozomu Ando, Masatsugu Takemoto, Satoshi Ogasawara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

This paper introduces a novel decoupling method for current regulation in high-speed bearingless motors using AC suspension current. The frequency of the suspension current increases in proportion to rotating speed in the bearingless motors using AC suspension current, and regulating the suspension current is difficult at high speeds rotation. In previous research, a current regulation method is used that convert AC to DC using a rotating coordinate system. However, that method has interference voltages which make the system unstable. In this paper, we propose a novel decoupling method for the suspension current regulation. In the experiment, stable levitation of the bearingless motor is achieved at 30000 min-1 by using the proposed decoupling controller.

Original languageEnglish
Title of host publication2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2310-2314
Number of pages5
ISBN (Electronic)9781479951611
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014 - Hangzhou, China
Duration: Oct 22 2014Oct 25 2014

Publication series

Name2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014

Conference

Conference2014 17th International Conference on Electrical Machines and Systems, ICEMS 2014
Country/TerritoryChina
CityHangzhou
Period10/22/1410/25/14

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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