| Title |
A Study on the Evaluation of System Voltage Stability in the Local Renewable Management System |
| Authors |
김승호(Seung-Ho Kim) ; 김현진(Hyeon-Jin Kim) ; 박상호(Sang-Ho Park) ; 신정훈(Jeong-Hoon Shin) |
| DOI |
https://doi.org/10.5370/KIEE.2025.74.11.1844 |
| Keywords |
Voltage Stability; Renewable Energy; Local Renewable Management System; DSA Tools; Electric Power System |
| Abstract |
The increasing integration of renewable energy poses a significant threat to the voltage stability of regional power systems, such as in the Gwangju-Jeonnam province. This paper proposes a dynamic voltage stability assessment methodology applicable within a Local Renewable Management System (LRMS). The proposed methodology periodically calculates the 'maximum renewable energy hosting capacity' by integrating real-time grid data and conducting contingency-based simulations using DSA(Dynamic Security Assessment) Tools. A case study using actual data from the Gwangju-Jeonnam grid successfully identified the potential risk of voltage collapse on a day without renewable energy curtailment and quantified the stable hosting limit. This study demonstrates that the proposed methodology can provide grid operators with a quantitative tool for proactive decision-making, contributing to the stable operation of the power grid while maximizing the utilization of renewable energy. |