Abstract
The stability analysis of the generalized predictive control (GPC) systems is studied. Based on the analysis of the characteristic polynomial of the closed-loop GPC systems, the stability of the closed-loop systems with one step ahead proportional-integral GPCs is proved. By using the root-locus method, the relationship between the poles of the closed-loop and the design parameters is explored, and the practical meanings of the design parameters in the proportional-integral GPCs are clarified. A simulation example is presented, by which the superiority of the proportional-integral GPC over the conventional GPC is explained from the point of view of frequency domain.
| Original language | English |
|---|---|
| Pages (from-to) | 19-24 |
| Number of pages | 6 |
| Journal | Kongzhi Lilun Yu Yingyong/Control Theory and Applications |
| Volume | 24 |
| Issue number | 1 |
| State | Published - Feb 2007 |
| Externally published | Yes |
Keywords
- Frequency domain analysis
- Predictive control
- Proportional-integral control
- Root-locus method
- Stability analysis