수직형 양면 모듈 태양광발전을 활용한 배전계통 수용 용량 향상에 관한 연구

초록

South Korea plans to achieve a 20% renewable energy share by 2030, entailing significant expansion of wind and photovoltaic system capacity. Rapid integration of distributed renewable sources into the distribution network leads to challenges intensified by high-output bifacial photovoltaic systems: overvoltage, line capacity limitations, and increased reverse power flow during peak photovoltaic system generation. Existing solutions focus on voltage constraints but have drawbacks like reduced equipment lifespan, higher costs, and do not address thermal capacity limitations. To overcome these challenges, this paper proposes an algorithm that recalculates the photovoltaic system hosting capacity by considering both voltage and thermal constraints through power flow analysis. Additionally, we suggest integrating vertical photovoltaic system installations to mitigate the reduced hosting capacity caused by bifacial modules.

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