Nonsmooth Predictive Control for Wiener Systems with Backlash-Like Hysteresis
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
In this paper, a nonsmooth predictive control method for Wiener systems with backlash-like hysteresis is proposed. In this type of system, the backlash-like hysteresis is connected in series with a preceded linear dynamic subsystem. A backlash-like hysteresis is modeled as a nonsmooth function with multivalued mapping; the corresponding objective function of the control system is also defined as being nonsmooth. In this case, the implementation of conventional model predictive control for such systems will encounter a challenge, since the gradients of the control criterion function with respect to control variables do not exist at nonsmooth points. In order to solve this problem, a nonsmooth receding horizon strategy based on Clarke subgradients is proposed. Moreover, the robust stability of the predictive control of such nonsmooth Wiener systems is analyzed. Finally, a numerical example and a simulation study on a mechanical transmission system are implemented to validate the proposed method.
Details
| Original language | English |
|---|---|
| Article number | 7151821 |
| Pages (from-to) | 17-28 |
| Number of pages | 12 |
| Journal | IEEE ASME transactions on mechatronics |
| Volume | 21 |
| Issue number | 1 |
| Publication status | Published - Feb 2016 |
| Peer-reviewed | Yes |
Keywords
ASJC Scopus subject areas
Keywords
- non-smooth systems, predictive control, Wiener systems