论文信息 - An Iterative Method for Calculating the Optimum Size of Inverter in PV Systems for Malaysia

An Iterative Method for Calculating the Optimum Size of Inverter in PV Systems for Malaysia

This paper presents an iterative method for optimizing inverter size in photovoltaic (PV) system for five sites in Malaysia. The sizing ratio which is the ratio of PV rated power to inverter's rated power is optimized at different load levels using different commercial inverters models. Hourly solar radiation and ambient temperature records are used to develop a Matlab model for a PV array and inverter. The model aims to estimate the inverter's efficiency in terms of PV array output power and inverter rated power. The results showed that the optimum sizing ratios for Kuala Lumpur, Johor Bharu, Ipoh, Kuching and Alor Setar are 1.21, 1.43, 1.31, 1.37 and 1.26, respectively. Streszczenie. W artykule zaprezentowano iteracyjną metode optymalizacji rozmiaru przeksztaltnika w systemach fotovoltaicznych na przykladzie pieciu usytuowan w Malezji. Optymalizacje przeprowadzono dla roznych obciązen bazując na komercjalnych modelach przeksztaltnikow. Uwzgledniono naslonecznienie dobowe i temperature otoczenia. Na przyklad dla Kuala Lumpur optymalny stosunek mocy fotowoltaicznej do mocy przeksztaltnika wynosil 1.21. (Iteracyjna metoda obliczania optymalnego rozmiaru przeksztaltnika w systemach fotowoltaicznych na przykladzie Malezji)

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