DC-DC converter topology with maximum power point tracking strategies for renewable energy systems — A survey

This paper focuses on a survey of the renewable energy systems, which are reliable and they can play a vital role in power generation and they are gradually being accepted as important alternatives because these are freely available, environmental friendly over fossil fuels and they are considered as promising power generating sources due to their availability. The energy system depends on reliable power and the corresponding system cost which are the two main concerns of renewable energy resources under varying weather conditions. The renewable energy sources like Sun, Wind, Geothermal, Ocean and biomass are environmental friendly and sustainable. Out of these the Ocean and Geothermal are not cost effective because it is not feasible to transport from long distances. The renewable power generation systems are becoming popular in remote areas due to the significant rise in fuel cost and progression in renewable energy technologies. It is found that the progress effort which has non-linear characteristics in the renewable field is still required to achieve the system performance. This paper is to review the current state of effective DC-DC power electronic converters, different control strategies, an intelligent (Maximum Power Point Tracking) MPPT strategies and simulations likely for different renewable energy systems.