Emission and Economic Load & Reserve ‎Dispatch with Frequency Constraints in ‎Competitive Power Market


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Abstract


Economic load dispatch is one of the most important problems in power system operation, therefore the aim of this paper is ‎to establish a method to reduce electricity generation costs with a new approach. This method introduces two new ‎constraints called rate of change of frequency (ROCOF) and minimum frequency as the main constraints in economic ‎dispatch in this paper. This approach reduces emission and fuel costs of the power plants as well as transmission line losses. Therefore, this method has also the capability to control frequency in a desirable range. Finally, the proposed method is ‎simulated on a test system. In the simulation, the economic load flow is solved with spinning reserve, transmission ‎lines losses and generation constraints as well as the two new mentioned constraints, i.e. ROCOF and minimum frequency ‎constraints. Simulation results obtained from the proposed and conventional methods, show advantages of the proposed ‎method


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Keywords


Power Market; Economic Power Flow; Frequency Control; Fuel Cost

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