Initial rotor position detection of PMSM at standstill without rotational transducer

This paper presents a new standstill rotor position detecting algorithm for nonsalient permanent magnet synchronous machine (PMSM) without any position sensor. By injecting high frequency current to the stator of the machine, the proposed algorithm provides the standstill rotor position with reasona...

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Bibliographic Details
Main Authors: Dae-Woong Chung, Jun-Koo Kang, Sul, Seung-Ki
Format: Conference Proceeding
Language:English
Subjects:
Circuits
Frequency
Inductance
Magnetic flux
Magnetic sensors
Rotors
Saturation magnetization
Stators
Transducers
Voltage
Online Access:Request full text
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Summary:This paper presents a new standstill rotor position detecting algorithm for nonsalient permanent magnet synchronous machine (PMSM) without any position sensor. By injecting high frequency current to the stator of the machine, the proposed algorithm provides the standstill rotor position with reasonable accuracy as well as the direction of magnetization. Though this paper focuses on the nonsalient PMSM, the proposed algorithm also works more effectively in the case of the salient machine such as an interior permanent magnet machine. From the experiments, the standstill rotor position is successfully detected within /spl plusmn/5/spl deg/ error in electrical degree.
DOI:10.1109/IEMDC.1999.769242