New stand-still position detection strategy for PMSM drive without rotational transducers

Author

Kim, Joohn Sheok ; Sul, SeungKi

Author_Institution

Dept. of Electr. Eng., Seoul Nat. Univ., South Korea

fYear

1994

fDate

13-17 Feb 1994

Firstpage

363

Abstract

This paper describes a new standstill rotor position detecting method for permanent magnet synchronous motor (PMSM) drives without any position sensors. Only two stator currents are required for rotor position detection and complete system operation. By injecting a test current with high frequency to the machine, the standstill rotor position can be detected with reasonable accuracy. The proposed method provides the maximum torque starting capability to the sensorless drive system by detecting the actual standstill rotor angle within ±10" error in electrical angle

Keywords

electric drives; machine testing; machine theory; permanent magnet motors; position measurement; rotors; stators; synchronous motors; voltage measurement; HF test current; accuracy; electrical angle; maximum torque starting capability; permanent magnet synchronous motor drives; rotor angle; sensorless; standstill rotor position detection; stator currents; Circuits; Frequency; Friction; Magnetic sensors; Permanent magnets; Shafts; Signal processing algorithms; Stators; Torque; Transducers;

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.1994.316376

Filename

316376