Technical Impacts of Virtual Clean Hydrogen Plants: Promoting Energy Balance and Resolving Transmission Congestion Challenges

Gyeong-Taek Do, Eun-Tae Son, Byeong-Chan Oh, Hong-Joo Kim, Ho-Sung Ryu, Jin-Tae Cho and Sung-Yul Kim ()
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Gyeong-Taek Do: Department of Electronic and Electrical Engineering, Keimyung University, 1095 Dalgubeol-daero, Daegu 42601, Republic of Korea
Eun-Tae Son: Department of Electronic and Electrical Engineering, Keimyung University, 1095 Dalgubeol-daero, Daegu 42601, Republic of Korea
Byeong-Chan Oh: Department of Electronic and Electrical Engineering, Keimyung University, 1095 Dalgubeol-daero, Daegu 42601, Republic of Korea
Hong-Joo Kim: KEPCO Research Institute (KEPRI), 105 Munji-ro, Yuseong-gu, Daejeon 34056, Republic of Korea
Ho-Sung Ryu: KEPCO Research Institute (KEPRI), 105 Munji-ro, Yuseong-gu, Daejeon 34056, Republic of Korea
Jin-Tae Cho: KEPCO Research Institute (KEPRI), 105 Munji-ro, Yuseong-gu, Daejeon 34056, Republic of Korea
Sung-Yul Kim: Department of Electrical Energy Engineering, Keimyung University, 1095 Dalgubeol-daero, Daegu 42601, Republic of Korea

Energies, 2023, vol. 16, issue 22, 1-13

Abstract: This paper presents the VCHP platform as a solution to address PV curtailment and line congestion in scenarios of increasing renewable energy penetration. Solar PV generation profiles and load profiles were generated for three scenarios (2025, 2030, and 2035) using data provided by KPX. Modifications were made to the IEEE 30 Bus model to accurately reflect the Korean power system, including the introduction of PCA and LCA at relevant buses. Line congestion was evaluated using metrics such as TUR, STUR, and TLR. The research findings indicate that integrating the VCHP platform in all scenarios effectively alleviates line congestion, as shown by the TUR remaining below 1. Importantly, the reduction in line losses exceeds the decrease in power flow, demonstrating the effectiveness of VCHP in reducing power losses. The results suggest that as renewable energy sources increase, line congestion issues may arise in the existing power system. However, integrating the proposed VCHP platform is a valuable solution for effectively utilizing surplus PV energy and improving the stability of the power grid. The adoption of such a platform can significantly enhance the operation and management of the power system.

Keywords: virtual clean hydrogen plant; power-to-gas; curtailment of PV; line congestion; renewable energy penetration (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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