Control action simulation for industrial boiler performance analysis∗

This paper is constructed with the effort of development of controlled system on the application of a traditional Zeigler-Nichols (Z-N) tuning method implemented for a boiler-turbine power plant to achieve better efficiency of the system. Extensive study and analysis of the state space representation to mathematical modeling approach is developed for the system introducing simulation method. A proportional-integralderivative (PID) tuner and a state feedback controller for an existing non-linear MIMO (multi-input/multioutput) plant model are considered for the analysis of the system performance, which can be generalized to design perfect industrial system. The contribution of the proposed study is to tune the boiler-turbine system model using Zeigler-Nichols(Z-N) method with PID tuning for step input. Different tuning parameters and robustness parameters are observed after the tuning adjustments implemented on the system. Finally, the MIMO system can be split toward SISO (single input/single output) system. In addition, the controllability and observability approaches are depicted along with system performance analysis with step input. The experimental results for the control systems design with the Z-N control algorithm are represented in the z-domain from continuous domain for discrete domain stability analysis in future.