Abstract
With the integration of intermittent energy sources in the power system, the main focus of thermal power plant design is to optimize the conventional system by improving efficiency and flexibility of power generation in the start-up and base-load procedures. This paper focuses on the behavior of thermal power generation with respect to load variations, fuel variations, weather conditions and internal dynamics of the system to aid in energy planning and the optimization of power system. Dynamic modeling and subsequent simulation is to make improvements. Therefore, to model the system, this research study has used a dynamic modeling and a simulation framework (OpenModelica based on modelica language) which is an object-oriented and equation-based language. This framework allows a non-causal modeling and a flexible reuse of the models since data-flow direction is not predefined like other state of the art simulating tools i.e. MATLAB. The proposed model analyses the trend of electrical power generation of KOT ADDU thermal power plant to predict the future demand of electrical power. The achieved results show more than 90% accuracy of the proposed model in the transient operation such as start-up and base load procedure.
Highlights
Modern world’s electrical power system consists of different energy sources which includes Thermal energy, Nuclear energy, Hydro energy and Renewable energies
Because our main objective is to develop a general thermal power plant model while KAPCO plant is used as case study for the purpose
To explain the start-up behavior of thermal power plant in more detail, the time period is considered in seconds because small time unit will provide more accurate results
Summary
Modern world’s electrical power system consists of different energy sources which includes Thermal energy, Nuclear energy, Hydro energy and Renewable energies. According to [1], the thermal generation is inevitably diminishing with the integration of variable electrical power generations like solar electrical power generation and wind electrical power generation in the electrical power system. According to [2], environmental concerns due to the emission of hazardous gas is putting the thermal power generation under a severe pressure but still a large amount of electrical power generation of Pakistan relies on fossil fuels, accounting more than 60 percent of the total electrical power generation [3]. With the integration of renewable energies into the power system, significant energy fluctuations are being faced in the global energy markets. For the stability of the power system these fluctuations need to be considered and addressed.
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