engleski

Improvement of Environmental Aspects of Thermal Power Plant Operation by Advanced Control Concepts

The necessity of the reduction of greenhouse gas emissions, as formulated in the Kyoto Protocol, impose the need for improving environmental aspects of existing thermal power plants operation. Improvements can be reached either by focusing on efficiency increase or by implementation of emission reduction measures. Investments in refurbishment of existing plant components or in plant upgrading by heat recovery systems, by flue gas desulphurization, by primary and secondary measures of nitrogen oxides reduction, or by biomass co-firing, are usually accompanied by modernisation of thermal power plant instrumentation and control system including sensors, equipment diagnostics and advanced controls. Impact of advanced control solutions implementation depends on technical characteristics and status of existing instrumentation and control systems as well as on design characteristics and actual conditions of installed plant components. Evaluation of adequacy of implementation of advanced control concepts is especially important in Western Balkan region where thermal power plants portfolio is rather diversified in terms of size, type and commissioning year and where generally poor maintenance and lack of investments in power generation sector resulted in high greenhouse gases emissions and low efficiency of plants in operation. This paper is intended to present possibilities of implementation of advanced control concepts, and particularly those based on artificial intelligence, in selected thermal power plants in order to increase plant efficiency and to lower pollutants emissions and to comply with environmental quality standards prescribed in large combustion plant directive.

thermal power plant; efficiency; emmissions; advanced control concepts

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