A robust controller which is designed by employing variable-structure control and linear-quadratic method is pre. sented for a permanent-magnet synchronous motor (PMSM) position control system. It is to achieve accurate control performance in the presence of plant parameter variation and load disturbance. In addition, it possesses the design flexibility of the conventional state feedback control. It is applied to the position control of a PMSM. Simulation and experimental results show that the proposed approach gives a better position response and is robust to parameter variations and load disturbance.
- Integral feedback
- Permanent-magnet synchronous motor
- Position control
- Variable-structure control