ON THE THYRISTOR BRUSH TYPE DC MACHINE

A commutatorless motor (CLM) is generally composed of a synchronous motor with three-phase star windings and a three-phase thyristor invertor. Thyristor control is performed by the gate signals obtained from rotor position sensor. The driving characteristics of CLM, having three-phase star windings of the synchronous machine, give torque instability, complicated control circuit logic, sound and electrical noise etc. Authors have reported on the thyristor brush machine (TBM), which is composed of polyphase delta armature windings and polyphase thyristor bridge rectifier circuit, as equivalent dc machine. TBM has fundamentally the same characteristics as that of the conventional dc machine. In this paper, the fundamental construction of a TBM and an investigation on the basic characteristics are reported and the experimental results give good agreement with the characteristics of a dc machine. For marine use, the applications of TBM are the same as that of a dc machine except the feed to the rotating field is through a brush and slipring and are particularly useful in series motor applications.

• Corporate Authors:

  Marine Engineering Society in Japan

  Osaka Building, 1-2-2 Uchisaiwai-Cho, Chiyoda-Ku
  Tokyo 100,   Japan 
• Authors:
  • TAKEDA, Y
  • Sakamoto, K
  • Nakajima, H
• Publication Date: 1977

Media Info

• Features: References;
• Pagination: p. 77-84
• Serial:
  • Marine Engineering Society in Japan, Bulletin of
  • Volume: 5
  • Issue Number: 2
  • Publisher: Marine Engineering Society in Japan

Subject/Index Terms

• TRT Terms: Electric controllers; Motors; Synchronous motors; Thyristors
• Old TRIS Terms: Electric motor controllers
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00163066
• Record Type: Publication
• Source Agency: Marine Engineering Society in Japan, Bulletin of
• Report/Paper Numbers: Quarterly
• Files: TRIS
• Created Date: Sep 28 1977 12:00AM