Study of Control Strategies for a Non-Linear Benchmark Boiler

摘要

Boiler control is a very important task in industrial power generation. The safety and economic factors can be well maintained by proper control strategy. Control of a boiler mainly involves retaining boiler parameters such as steam pressure, water level and oxygen level at desired levels with reduced disturbance effects. Interactions within the system is a significant factor for effective boiler control. The control strategy presented in the paper deals with the analysis and reduction of multivariate interactions by keeping the boiler parameters at desired levels. The efficiency of classical control applications in boiler control is one of the main objectives of this study. The effect of Relative Gain Array analysis in interaction scrutiny, reduction of interactions using decoupling approach and effect of multiloop PID's(Proportional Integral and Derivative) is well observed in the study. The efficiency and optimality of the mentioned approaches are well observed and need for an efficient control strategy is illustrated.