Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2003.04a
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- Pages.176-178
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- 2003
Sensorless Control of PMSM using Rotor Position Tracking PI Controller
회전자 위치 추정 PI 제어기를 이용한 PMSM 센서리스 제어
- Lee, Jong-Kun (Yeungnam University) ;
- Seok, Jul-Ki (Yeungnam University) ;
- Lee, Dong-Choon (Yeungnam University)
- Published : 2003.04.24
Abstract
This paper presents a new velocity estimation strategy of a non-salient permanent magnet synchronous motor(PMSM) drive without high frequency signal injection or special PWM pattern. This approach is based on the d-axis current regulator output voltage of the drive system which has the information of rotor position error. The rotor velocity can be estimated through a rotor position tracking PI controller that controls the position error to aero. For zero and low speed operation, the PI gains of rotor position tracking controller have a variable structure. The PI tuning formulas are derived by analyzing this control system using the frequency domain specifications such as phase margin and bandwidth assignment.
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