Abstract
The paper discusses the problem of rotor position estimation for the nonsalient PMSM and presents a Full-Order (FO) observer and a Sliding Mode (SM) observer; both are constructed using a speed estimate. The observers are developed using the PMSM model in the stationary reference frame and use the motor voltages, currents and speed as inputs. The PMSM is treated as a time-varying plant. Convergence is analysed assuming that the speed signal is inaccurate - this corresponds to the situation when a speed estimate is used to obtain a sensorless observer. Under improper speed, the FO observer gives errors; however, the SM observer can be forced to converge by increasing the gains. The SM structure proposed allows design of a variety of sensorless observers.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 157-189 |
| Number of pages | 33 |
| Journal | International Journal of Vehicle Autonomous Systems |
| Volume | 11 |
| Issue number | 2-3 |
| DOIs | |
| State | Published - 2013 |
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Automotive Engineering
- Electrical and Electronic Engineering