The Short-Run Security-Constrained Economic Dispatch - Galland, Olga;Hesamzadeh, Mohammad Reza
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In liberalized electricity markets, the outputs of controllable units (both generators and demands) must be defined at regular time intervals ( dispatch intervals ). Nowadays, balancing services are procured and dispatched not in the most efficient way partly due to long dispatch intervals. The dispatch interval in most European countries is one hour. During the dispatch interval, demand and wind power capacity fluctuates a lot. To keep the supply-demand balance in the system, some generators participate in frequency control. This action increases the system operation cost. By reducing the…mehr

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Produktbeschreibung
In liberalized electricity markets, the outputs of controllable units (both generators and demands) must be defined at regular time intervals ( dispatch intervals ). Nowadays, balancing services are procured and dispatched not in the most efficient way partly due to long dispatch intervals. The dispatch interval in most European countries is one hour. During the dispatch interval, demand and wind power capacity fluctuates a lot. To keep the supply-demand balance in the system, some generators participate in frequency control. This action increases the system operation cost. By reducing the dispatch interval to short periods of time over which physical limits of the power system are fully respected, balance services could be dispatched in a more efficient way. This improves the overall economic efficiency of the system. This work derives the mathematical model for short-run economic dispatch. The developed optimization problem is a linear programming problem. The developed formulation for the short-run economic dispatch is modeled in GAMS platform. Two applications of the proposed model are discussed: (1) power system security, and (2) real-time balancing market.
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Autorenporträt
received her Engineer Diploma in Electrical Engineering from St Petersburg Technical Forest Academy, Russia in 2010 and her MSc in Electrical Engineering from KTH Royal Institute of Technology, Sweden, in 2012. She is working as a research engineer in the EPS department at KTH. She is focused on dispatch problems in liberalized electricity markets.