Abstract
This paper studies the effect of load-following reserve requirement levels on the short-term power system scheduling. To this purpose, a rolling unified unit commitment-economic dispatch model is used. The model performs economic dispatch with up to 36-hour look-ahead capability including unit commitment revision and uses variable time resolution to contain computational requirements. A load-following reserve determination method that uses the standard deviation of the forecast error, applied to the particularities of the rolling, variable time resolution unit commitment model, is presented. The proposed model is tested under various reserve requirements via annual simulations of the Greek Interconnected Power System short-term operations using real 2013 data. The effect of the load-following reserve levels on system performance indices are calculated and discussed.
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