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Multi-Objective Design of Battery Operation in a Photovoltaic System by Means of PV Output and Load Power Forecasts
T. Hayashi, S. Wakao
Battery Storage and Control, Large Grid-Connected PV Systems, System Performance, Self-Organizing Map, Multi-Objective Optimization/Optimisation
PV Systems
Subtopic: Large PV Power Plants and Distributed PV: System Aspects and Grid Connection
Event: 27th European Photovoltaic Solar Energy Conference and Exhibition
Session: 5AV.2.19
4087 - 4091
ISBN: 3-936338-28-0
Paper DOI: 10.4229/27thEUPVSEC2012-5AV.2.19
0,00 EUR
Document(s): paper


Recently, photovoltaic (PV) systems have attracted attention because of global environmental issues such as global warming and exhaustion of fossil fuels. However, since PV output fluctuates according to weather conditions, PV systems need to be connected with an electrical grid to utilize stably the solar power. If PV systems are intensively connected with an electrical grid of a specific area, the voltage at each residence increases due to the reversal PV power flow. Although we can overcome the issue by equipping the active power control function with PV systems, the PV output reduction becomes a further problem. Therefore, it is proposed to install a storage battery in the PV system in order to resolve the problems described above. On this occasion, we must clarify its demerits such as the additional costs and CO2 emission as well as its merits. Therefore, we have applied the multi-objective optimization to the design problems of the battery operation in the PV system and have evaluated the PV system from various perspectives.