Department of Electrical, Electronic & System Engineering, Faculty of Engineering & Built Environment, National University of Malaysia, Selangor, 43600 Bangi, Malaysia
Azah Mohamed
Department of Electrical, Electronic & System Engineering, Faculty of Engineering & Built Environment, National University of Malaysia, Selangor, 43600 Bangi, Malaysia
K. Sopian
Solar Energy Research Institute, National University of Malaysia, Selangor, 43600 Bangi, Malaysia
Marwan Mahmoud
Department of Electrical Engineering, Engineering Faculty, An-Najah National University, Nablus 97300, Palestine
Current Affiliation:
Department of Electrical Engineering, Engineering Faculty, An-Najah National University, Nablus 97300, Palestine
This paper presents a new method for determining the optimal sizing of standalone photovoltaic (PV) system in terms of optimal sizing of PV array and battery storage. A standalone PV system energy flow is first analysed, and the MATLAB fitting tool is used to fit the resultant sizing curves in order to derive general formulas for optimal sizing of PV array and battery. In deriving the formulas for optimal sizing of PV array and battery, the data considered are based on five sites in Malaysia, which are Kuala Lumpur, Johor Bharu, Ipoh, Kuching, and Alor Setar. Based on the results of the designed example for a PV system installed in Kuala Lumpur, the proposed method gives satisfactory optimal sizing results.