Indirect startup rotor position sensor for synchronous reluctance motor

Author

Arefeen, M.S. ; Ehsani, M. ; Lipo, T.A.

Author_Institution

Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA

fYear

1994

fDate

13-17 Feb 1994

Firstpage

78

Abstract

This paper presents a new indirect method of sensing the rotor positions in a synchronous reluctance motor at zero speed. The method is based on a special diagnostic switching control of the drive converter. The induced phase voltages and currents from this diagnostic signal is used to determine the position of the rotor. Variations of the method also work accurately and with robustness at all speeds. This method requires no additional hardware, other than the drive circuitry and microcontroller. The theoretical foundations of the method are presented and the experimental results are shown to verify the practicality of the method

Keywords

electric drives; position measurement; power convertors; reluctance motors; rotors; starting; diagnostic switching control; drive circuitry; drive converter; equivalent circuit; error analysis; indirect startup; induced currents; induced phase voltages; microcontroller; rotor position sensor; sensorless startup; synchronous reluctance motor; zero speed; AC machines; Circuits; Drives; Induction machines; Reluctance machines; Reluctance motors; Rotors; Stator windings; Synchronous motors; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 1994. APEC '94. Conference Proceedings 1994., Ninth Annual

Conference_Location

Orlando, FL

Print_ISBN

0-7803-1456-5

Type

conf

DOI

10.1109/APEC.1994.316416

Filename

316416