OPTIMIZED FUZZY MODELLING OF A BOILER SUPERHEATER

Modelling of systems is very much useful to study the response of a system for different input variations and for the design of control schemes in both real time application and in the off-line simulation. The development of optimized fuzzy model for a boiler superheater of a 210 MW coal fired thermal boiler power plant is reported in this paper. The fuzzy model has been developed first taking into the input output data sequences of the transfer function model. The complexity of the fuzzy model is removed by means of various optimization techniques. The resulting optimized model is complete, compact, and consistent (C). Simulation study has been carried out on the fuzzy model both prior and after optimization to get the response of the superheater for various inputs. These results are validated with the results of the transfer function model and are found to be analogous.

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