Comparative study of photovoltaic system optimization techniques: Contribution to the improvement and development of new approaches. (February 2018) - Issaadi, Wassila
Abstract: During a few years, the photovoltaic (PV) market has shown unprecedented growth and wide-spread use of this environmentally friendly and distributed source of power generation. On a global basis, new PV installations approximately varies between 78 GW and 82 GW in 2016 and estimates for 2017 are in the 80–85 GW range. For the 6th year in a row, solar power with 56% of total investment representing USD 161 billion (EUR 146 billion) took the largest share of new investments in renewable energies. These investments were almost evenly shared between large scale solar power and distributed solar energy systems. The most impressive result is however the number of installations and therefore of individuals, companies, and public entities participating in this development: nearly 2 million single PV installations produce photovoltaic power already today. The strong growth in PV installations is currently driven in particular by Asian countries, accounting for some 70% of the global market, and accompanied by the promising key markets of North America, Japan and Australia. Europe contributed with a share of 5%. At the same time, the PV arena has importantly widened its number of participating countries and also increased their specific weight. Major new areas for development lie also in the Sunbelt region, with Africa, Middle East and South America just starting to create new growth opportunities, almost always dedicated to covering local demand. In this topic, the proposed study involves a comparison between the delivered power optimization techniques. Among all, there is the technique of Truly Maximum Power Point Tracking method and the optimization techniques With and Without Sunshine Compensation. The last two techniques are less efficient than the first one, but easier in their implementation. In order to increase their performance, an improvement has been proposed. The obtained results are promising, very satisfactorily and remain to be practically validated.