Experimental estimation of a 5-axis active control type bearingless canned motor pump

Naoto Yamamoto, Masatsugu Takemoto, Satoshi Ogasawara, Masao Hiragushi

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

20 Citations (Scopus)

Abstract

Bearingless motors are characterized by integration of electrical motors and magnetic bearings. These motors can realize magnetic suspension of rotor shafts without mechanical contacts. If the bearingless motor is applied to a canned motor pump, it is possible to levitate and rotate a impeller and a rotor shaft of a centrifugal pump. Therefore, the bearingless canned motor pump can realize next several advantages; (1) high power and high head, (2) clean liquid sending, (3) maintenance free, (4) longer operating life, (5) high chemical resistance. On the other hand, the rotor shaft and the stator must be covered with thick bulkheads, because fluid flows into the gap between the rotor shaft and the stator. It becomes difficult to generate sufficient suspension force for magnetic suspension, as a magnetic gap length is increased by the thick bulkheads. Accordingly, a novel structure of a 5-axis active control type bearingless motor, that can generate the sufficient suspension force under the wide-gap condition, has been proposed. This paper introduces pump characteristics with experiments using a prototype of the proposed novel structure.

Original languageEnglish
Title of host publication2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Pages148-153
Number of pages6
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011 - Niagara Falls, ON, Canada
Duration: May 15 2011May 18 2011

Publication series

Name2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011

Conference

Conference2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
CountryCanada
CityNiagara Falls, ON
Period5/15/115/18/11

Keywords

  • bearingless motors
  • magnetic Bearings
  • Magnetic suspension
  • wide gap length

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Experimental estimation of a 5-axis active control type bearingless canned motor pump'. Together they form a unique fingerprint.

  • Cite this

    Yamamoto, N., Takemoto, M., Ogasawara, S., & Hiragushi, M. (2011). Experimental estimation of a 5-axis active control type bearingless canned motor pump. In 2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011 (pp. 148-153). [5994829] (2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011). https://doi.org/10.1109/IEMDC.2011.5994829