A rotor angular position estimation based on a simple mathematical expression of the magnetizing characteristics of switched reluctance machines

Author

Suzuki, Takanori ; Terada, M. ; Chiba, Akira ; Takemoto, Masatsugu ; Fukao, Tadashi

Author_Institution

Tokyo Univ. of Sci., Chiba, Japan

fYear

2005

fDate

4-8 April 2005

Firstpage

743

Lastpage

744

Abstract

Switched reluctance machines (hereafter, abbreviates with SRM) have neither a permanent magnet nor the second winding in the rotor. These motors are mechanically robust and have low inertia because of a simple salient rotor structure. SRMs have fast acceleration characteristics and low power loss at low torque load. In this paper, a mathematical modeling method based on measured magnetization curves has been proposed. Based on the proposed expression, rotational angular position is estimated. It is found that the estimation error can be reduced as low as 1 deg.

Keywords

permanent magnet machines; reluctance machines; rotors; torque; estimation error; magnetization curves measurement; magnetizing characteristics; mathematical modeling method; permanent magnet; power loss; rotor angular position estimation; rotor winding; salient rotor structure; switched reluctance machines; torque load; Acceleration; Machine windings; Magnetic switching; Permanent magnet motors; Permanent magnets; Reluctance machines; Reluctance motors; Robustness; Rotors; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1463800

Filename

1463800