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Energies 2017, 10(10), 1478; doi:10.3390/en10101478

Flexibility-Based Reserve Scheduling of Pumped Hydroelectric Energy Storage in Korea

Department of Energy System Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
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Received: 28 August 2017 / Revised: 15 September 2017 / Accepted: 22 September 2017 / Published: 24 September 2017
(This article belongs to the Special Issue Risk-Based Methods Applied to Power and Energy Systems)
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Abstract

The high penetration of renewable energy resources has made it harder to secure a flexible power system. Accordingly, this has become an issue in operating power systems. As a possible solution, pumped hydroelectric energy storage (PHES) has received much attention because of its fast start-up and ramp characteristics. This study proposes a flexibility-based reserve scheduling method for PHES. In this method, the reserve scheduling of PHES was conducted to improve flexibility; the associated risk index was termed the ramping capability shortage expectation (RSE). The peak-load days in 2016 and 2029 were selected to examine the applicability and performance of the proposed method. Results indicate that the proposed method can improve the flexibility by 4.45% for 2016 and 0.9% for 2029, respectively. View Full-Text
Keywords: flexibility; pumped hydroelectric storage; ramping capability shortage expectation; renewable energy resources; reserve scheduling flexibility; pumped hydroelectric storage; ramping capability shortage expectation; renewable energy resources; reserve scheduling
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Min, C.-G.; Kim, M.-K. Flexibility-Based Reserve Scheduling of Pumped Hydroelectric Energy Storage in Korea. Energies 2017, 10, 1478.

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