OPTIMAL OPERATION OF RESERVOIR-TYPE HYDROPOWER FOR ELECTRICITY GENERATION AND FLOOD CONTROL

Abstract

 Increasing hydropower generation is one of the most important issues for contributing to carbon neutrality and climate change mitigation. On the other hand, hydropower producers have been required to reduce flood discharge due to recent extreme rainfall events. This study presents a method for detecting a rule curve that satisfies both increasing electricity generation and decreasing flood discharge in reservoir-type hydropower. Specifically, we applied a multi-objective optimization method to a water balance model for reservoir-type hydropower which can consider electricity generation and flood control. As a result of a case study, although we observed that the reservoir level could not always be adjusted according to the rule curves, we obtained the rule curves that reflected characteristics of objective functions in the optimization well.