A predictive reference governor for constrained control systems
Computers in Industry - Special issue: ASI'96: life cycle approaches to production systems: management, control and supervision
Fulfilling hard constraints in uncertain linear systems by reference managing
Automatica (Journal of IFAC)
Journal of Optimization Theory and Applications
Automatica (Journal of IFAC)
Hi-index | 22.14 |
This paper proposes a novel class of Command Governor (CG) strategies for input and state-related constrained discrete-time LTI systems subject to bounded disturbances in the absence of explicit state or output measurements. While in traditional CG schemes the set-point manipulation is undertaken on the basis of either the actual measure of the state or its suitable estimation, it is shown here that the CG design problem can be solved, with limited performance degradation and with similar properties, also in the case that such an explicit measure is not available. This approach, which will be referred to as the Feed-Forward CG (FF-CG) approach, may be a convenient alternative CG solution in all situations whereby the cost of measuring the state may be a severe limitation, e.g. in distributed or decentralized applications. In order to evaluate the method proposed here, numerical simulations on a physical example have been undertaken and comparisons with the standard state-based CG solution reported.