Sensorless Rotor-Position Estimation at Standstill of Cylindrical Brushless DC Motors Using Opened Phase Voltage Change Caused by Eddy Currents

• Tomita Mutuwo

  Nagoya University

• Yamaguchi Hideyuki

  AICHI ELECTRIC CO., LTD.

• Doki Shinji

  Nagoya University

• Okuma Shigeru

  Nagoya University

Bibliographic Information

Other Title

• うず電流による開放相電圧変化を利用した円筒形ブラシレスDCモータのセンサレス停止位置推定法
• ウズ デンリュウ ニヨル カイホウソウ デンアツ ヘンカ オ リヨウシタ エン

Abstract

A rotor position estimation of a cylindrical brushless dc motor at a standstill has been difficult. Therefore, a torque control of a motor has been difficult at starting of the motor, and the realization of the position estimation at a standstill has been desired. This paper proposes a simple processing of a rotor that non-magnetic materials are pasted on a rotor surface. This processing generates an eddy current on non-magnetic materials and causes an opened phase voltage change according to a rotor position. The experimental results used a microcomputer show that it is possible to estimate a rotor position of the cylindrical motor despite of a standstill by using the opened phase voltage change.

Journal

• IEEJ Transactions on Industry Applications

  IEEJ Transactions on Industry Applications 117 (10), 1205-1211, 1997

  The Institute of Electrical Engineers of Japan

Keywords

• BLM

Details

• CRID: 1390001204658690176
• NII Article ID: 10002725348
• NII Book ID: AN10012320
• DOI: 10.1541/ieejias.117.1205
• ISSN: 13488163
• ISSN: 09136339
• NDL BIB ID: 4303972
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4303972
• Web Site: http://www.jstage.jst.go.jp/article/ieejias1987/117/10/117_10_1205/_pdf
• Data Source:
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  • CiNii Articles
• Abstract License Flag: Disallowed