Investigation on resolution of initial position estimation for IPMSM

Author

Li, Zhaofeng ; Kawamura, Atsuo

Author_Institution

Fac. of Eng., Yokohama Nat. Univ., Yokohama, Japan

fYear

2010

fDate

6-8 Sept. 2010

Abstract

Resolution of Initial position estimation based on high frequency voltage signal injection for IPMSM was investigated. The simulation was carried out to investigate the influence of inductance saturation due to motor drive currents and quantization errors due to A/D conversion on the estimation accuracy. An experimental system consisting of a IPM motor and a voltage-source PWM inverter has been implemented to investigate position estimation accuracy. The simulation results show that estimation accuracy depends on the resistance-to-reluctance ratio at zero speed. However, experimental results show that estimation accuracy is affected significantly by inverter output voltages and configuration of the test motor.

Keywords

PWM invertors; analogue-digital conversion; permanent magnet motors; position measurement; synchronous motor drives; A-D conversion; IPM motor; IPMSM; high frequency voltage signal injection; inductance saturation; initial position estimation; interior permanent magnet synchronous machines; motor drive currents; quantization errors; resistance-to-reluctance ratio; voltage-source PWM inverter; Accuracy; Estimation; Inductance; Inverters; Pulse width modulation; Rotors; Stators; IPM motor; estimation accuracy; initial position; sensorless control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International

Conference_Location

Ohrid

Print_ISBN

978-1-4244-7856-9

Type

conf

DOI

10.1109/EPEPEMC.2010.5606665

Filename

5606665