Sensorless Control of PMSM

영구자석형 동기모터의 센서리스 제어

  • Hong Chan-Hee (Digital Appliance Research Lab., LG Electronics Inc.) ;
  • Cho Kwan-Yuhl (Digital Appliance Research Lab., LG Electronics Inc.) ;
  • Yang Soon-Bae (Digital Appliance Research Lab., LG Electronics Inc.)
  • 홍찬희 ((주) LG전자 Digital Appliance 연구소) ;
  • 조관열 ((주) LG전자 Digital Appliance 연구소) ;
  • 양순배 ((주) LG전자 Digital Appliance 연구소)
  • Published : 2001.07.01

Abstract

This paper presents the sensorless control technique with cost competitive phase currents detection for PMSM drives. The phase currents are detected by two methods : one is from the do link current, another is from the currents of the lower legs of the inverter switches. The sensorless control with the phase currents dectection is implemented with DSP. It is verified through the experiment that the estimated rotor position tracks the real rotor position at the low speeds and high speeds operation with flux weakening.

Keywords