Abstract
In this paper, a fixed-structure Iterative Learning Control (ILC) control design is presented for the tracking control of the output probability density functions (PDF) in general stochastic systems with non-Gaussian variables. The approximation of the output PDF is firstly realized using a Radial Basis Function Neural Network (RBFNN). Then the control horizon is divided to certain intervals called batches. ILC laws are employed to tune the PDF model parameters between two adjacent batches. A three-stage method is proposed which incorporates a) Identifying nonlinear parameters of the PDF model using subspace system identification methods; b) Calculating the generalised PI controller coefficients using LMI-based convex optimisation approach; and c) Updating the RFBNN parameters between batches based on ILC framework. Closed-loop stability and convergence analysis together with simulation results are also included in the paper. © 2006 IEEE.
Original language | English |
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Title of host publication | Proceedings of the IEEE Conference on Decision and Control|Proc IEEE Conf Decis Control |
Pages | 5048-5053 |
Number of pages | 5 |
Publication status | Published - 2006 |
Event | 45th IEEE Conference on Decision and Control 2006, CDC - San Diego, CA Duration: 1 Jul 2006 → … |
Conference
Conference | 45th IEEE Conference on Decision and Control 2006, CDC |
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City | San Diego, CA |
Period | 1/07/06 → … |
Keywords
- Convergence analysis
- ILC mechanism
- LMI
- PI control
- RBF neural networks
- Stochastic systems
- Subspace system identification
- Tracking performance