Optimisation of Industrial Processes at Supervisory Level: Applications to Control of Thermal Power Plants
Springer Science & Business Media, 2002 - Computers - 186 pages
In the increasingly competitive modern world, the industrial sector faces new challenges such as improving productivity and reducing costs while taking into account the process operational constraints.
As energy demand increases in many countries, especially in big cities where the environmental concerns are very important and resources to produce energy are limited, the efficiency of operation of power plants becomes of paramount importance.
Under this scenario, this book presents new methodologies to improve power plants' efficiency, by using automatic control algorithms. This will lead to an improvement in the generation of companies' profit and also in the quality of their final product.
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Au(t auxi based on fuzzy behaviour calculated Closed-loop response combined cycle compressor consequence parameters considered constant set-point constraints associated control action control strategy based controlled variables defined in Equation described in Section direct method Doris Saez H drum water level elseif flag end end enthalpy error indexes fuel flow fuzzy clustering fuzzy logic fuzzy model fuzzy relational fuzzy sets gas turbine GAyGAu GPC algorithm heuristic method Implemented by Doris industrial inlet kg/s linear models linguistic fuzzy models MBPC membership function minimisation non-linear fuzzy models non-linear model objective function defined obtained optimal control optimal set-points optimisation problem optimisation variables optimum outlet steam Output variables Phenomenological equations Ordys PI controller polynomials prediction horizons presented process model regulatory level reheater Renca rule satisfaction degrees sensitivity method simulator specific enthalpy steam turbine step change Sugeno superheated steam pressure superheater supervisory controller supervisory controller design sys(l Table Takagi-and-Sugeno thermal power plant triangular norm values vector