The Application of Action-Dependent Adaptive Critic Designs in Boiler Combustion Control

Adaptive critic designs is a method used to approximate optimal control over time in nonlinear systems, which is suitable for dealing with time-varying complex systems and dynamic varying complex tasks. On the other hand, the boiler combustion system is a typical plant with multiple inputs/multiple outputs, non-linearity and time-delay, and the coupling relationship between its parameters correlated with combustion process is very anfractuous, so it is very hard to control the combustion process with conventional control methods. This paper uses action-dependent adaptive critic designs to consider the solution of boiler combustion multivariable control systems, realize the emulational control of boiler combustion process, make the main steam pressure around rated value and the furnace negative pressure and the oxygen content in the exhaust gas varied within a certain range, and finally analyze the learning capacity, controlling effect and adaptive capability of the approach.