Abstract
This paper proposes a new antiwindup strategy for PI speed controller to suppress the undesired side effect known as integrator windup when large set-point changes are made. When the speed control mode is changed from P control to PI control, an appropriate initial value for the integrator is assigned. This value then restricts the overshoot. In addition, the proposed method guarantees the designed performance independent of the operating conditions, i.e., different set-point changes and load torques, and can be easily implemented with existing PI controllers. In SIMULINK/MATLAB-based comparative simulations and experiments for a permanent-magnet synchronous motor speed controller, the proposed method shows a superior control performance compared with the existing well-known antiwindup methods, such as conditional integration and tracking back calculation.
| Original language | English |
|---|---|
| Pages (from-to) | 2039-2046 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 56 |
| Issue number | 6 |
| DOIs | |
| State | Published - 2009 |
Bibliographical note
Funding Information:Manuscript received March 29, 2008; revised October 30, 2008. First published March 16, 2009; current version published June 3, 2009. This work was supported by the Manpower Development Program for Energy and Resources funded by the Ministry of Knowledge and Economy (MKE), Korea, and the General R/D Program of the DGIST, funded by the Ministry of Education, Science and Technology (MEST), Korea.
Keywords
- Antiwindup
- Integrator windup
- PI controller
- Permanentmagnet synchronous motor (PMSM)
- Speed control