Optimal Guaranteed Cost Pollution Control for River Systems

This paper is concerned with the problem of how to adjust the pollution loads such that the water quality indicators come to the desired levels as quickly as possible, and the adjusting cost of the pollution loads is minimized when the water quality indicators exceed their standard levels. A model of the river system pollution problem is established as an uncertain interconnected time-delay system, and the optimal guaranteed pollution control problem is formulated. An LMI approach is presented to the design of the optimal guaranteed cost decentralized controller. Finally, the pollution control for a river system is simulated to demonstrate the effectiveness of the proposed results