مدل شبیه سازی دینامیکی یک نیروگاه زغال سنگ حرارتی با سیستم گوگرد زدایی گاز دودکش

In this paper a Dynamic Simulation Model has been used to present the likely responses of the electricity industries’ latest perturbations such as: changes in environmental regulations, international fuel market evolution, restriction on fuel supply and increase on fuel prices, liberalisation of the European Electricity Market, and the results of applying energy policies and official tools such as taxes and emission allowances. The case under study refers to the Teruel Power Plant, built after the 1970s oil crisis to ensure national electricity supply; burning domestically produced coal in order to ensure local mining activity. The Teruel Power Plant has made relevant investments in order to meet emission limits, such as a Flue Gas Desulphurisation Plant. The economic viability of the power stations has to be analysed after environmental costs have been internalised. A system is defined that studies the coal-firing Electric Power Plant selling energy to the free electricity market, whenever the generation cost is competitive. A Dynamic Simulation Model would appear to be an accurate tool to optimise power station management within different frameworks.

This paper presents a Dynamic Simulation Model that intends to provide a representation of the economic viability of power plants operating in the recently restructured Spanish Electricity Sector. The simulation results show how clean technology costs and CO2 emission penalisations modify the electricity production costs; and how techno-economic tools, regulatory intervention and energy policies may bring stability to the new competitive market, even to the future European Electricity Market. The computer model represents the production costs of a Coal-Burning Power Plant. The facility reduces combustion emissions by a Flue Gas Desulphurisation Plant, in order to be able to sell electricity to the now running Spanish Electricity Pool. A series of scenarios are herein presented to illustrate different situations, such as an increase of imported fuel prices or taxes, variations of environmental costs and criteria for public incentives and taxation, new restrictive emission limits enforced, etc. The process simulation has been carried out with the software package SIGEM (Intelligent Model Generator System) introduced by Caselles in 1988.

The Dynamic Simulation Model has proved to be the most suitable tool for the management System study considered. The reason for this is because it is able to take into account technical, political and economic variables influencing the decision-maker, as well as their interrelationships and evolution over time. Having thoroughly studied the different electricity generation technologies, the Model may be easily adapted to all types of Electric Power Stations, considering the Net Consume Curve for the specific Power Plant under study, the fuel characteristics and the associated environmental effects. Exits from specific technical or economical programs can be incorporated into the Model to achieve acute simulation results. Such programs are those that analyse combustion, fuel or emission characteristics, or those that represent markets prices or costs estimations. The Model can easily simulate the effect of market changes or different energy policies when considering taxes and economical incentives. Existing Models referring to the Electricity Sector (Impact, Gaudeamo, Blum et al. or Admire Rebus, etc.), focus on technical, environmental or economical aspects. They usually do not take into consideration the relevant relationships between the other aspects, thus reaching valid, but not global conclusions, that may draw instability to the sector.