Learning Stable and Robust Linear Parameter-Varying State-Space Models
Publication Name: Proceedings of the IEEE Conference on Decision and Control
Publication Date: 2023-01-01
Volume: Unknown
Issue: Unknown
Page Range: 1348-1353
Description:
This paper presents two direct parameterizations of stable and robust linear parameter-varying state-space (LPV-SS) models. The model parametrizations guarantee a priori that for all parameter values during training, the allowed models are stable in the contraction sense or have their Lipschitz constant bounded by a user-defined value γ. Furthermore, since the parametrizations are direct, the models can be trained using unconstrained optimization. The fact that the trained models are of the LPV-SS class makes them useful for, e.g., further convex analysis or controller design. The effectiveness of the approach is demonstrated on an LPV identification problem.
Open Access: Yes