Abstract
This chapter presents several proposals for physical model-based coordinated control of thermal power plant. Using the example of the 200 MW oil-fired Ballylum ford thermal power plant, an analysis of the dynamics of boiler-turbine operation is presented. A model simulating the dominant static and dynamic characteristics of the plant has been used for the purpose of analysis. This chapter discusses details of this plant simulation. It also includes discussion of the main system disturbances and constraints that have a significant influence on the economics of power plant control. A formulation of a nonlinear physical model-based predictive control (NPMPC) approach for application to power plant simulation is described. The effectiveness of the physical model-based predictive control approach in disturbance rejection, accounting for plant-wide interactions, constraint handling and set-point following was also discussed. This is based on the simulation results obtained by running the plant simulation under severe but realistic operating conditions.
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