Study on the impact of rooftop solar power systems on the low voltage distribution power grid: A case study in Ha Tinh province, Vietnam

• DOI: 10.1016/j.egyr.2023.07.048
• Publication Date: 2023-08-05T09:01:00Z
• Authors: Thanh Son Tran; Minh Phap Vu; Manh-Hai Pham; Phuc-Huy Nguyen; Duc-Tuyen Nguyen; Duc-Quang Nguyen; Anh Tung Tran; Hoang-Anh Dang
• Keywords: Grid parity; Overvoltage; Solar Power; Stand-alone power system

Vietnam has developed solar power very quickly in recent years. However, the integration of system into a distribution grid can cause clear effect on voltage grid. Accordingly, at nodes increases significantly because appearance photovoltaic (PV) systems, and it lead to overvoltage some load near source. The impact stations with grids depends location operating conditions utility Therefore, study rooftop needs add actual data achieve more detailed assessment reliability. This analyzed influence low Ha Tinh province, support ETAP software. scenario was calculated for 50% (3-phase) penetration gain transformer. Besides, proposed synthetic solution is combination reactive compensation 5kVAr minimum level many points adjustment tap appropriate depending situation Thus, improved, loss also decreased.