A Review on Advanced Control Techniques for Multi‐Input Power Converters for Various Applications

Abstract

In recent years, the conventional energy source is quickly being exhausted and the cost and need of energy are growing in the direction of achieving the worldwide necessities for both domestic and commercial customers. But conventional generation methods are the main contributors to the pollution. Hybrid non- conventional sources are being used to produce energy to address these challenges. However, in renewable energy sources the solar ambient temperature, wind speed will be irregular, and fuel cells will be less efficient and more expensive; these are the major drawbacks. To solve these problems, researchers use different power electronics such as APF (Active Power Filters), inverters, and DC-DC converters, power quality conditioners. Among these power electronics, multiple-source power converters are very active designed for regulating voltage & improving the renewable energy systems efficiency. In this survey, the present progress in multi-input DC-DC power converters with numerous applications like hybrid vehicles, hybrid energy systems, satellite, DC microgrid applications, and portable electronics strategies is recognized and studied. Choosing the proper multi-input power converter topology, as well as for its optimal functioning, the precise integration of control technology is a significant feature to increase the total performance of the electrical power system. In the present survey, the network topology of several multiple-input power convertors that includes electrically connected, magnetically connected power converters, and electromagnetically connected converters are studied and comparisons are completed founded on the different structures of the converters such as the utilization of source, the battery life, the isolation, control methods used and the soft-switching. And also Control approaches that include PID (Proportional Integral Derivative) for stand-alone renewable energy power generation and bidirectional power generation for microgrids, MPC (Model Predictive Control) for RE (Renewable Energy Sources) fed to DC distribution grid, state-space modelling (SSM) for hybrid electrical vehicles, and fuzzy logic control (FLC) for renewable energy power generation like different control methods are discussed. According to the comparison results, the greatest possibilities used for the formation of the dual source power convertors are electromagnetically dual source power convertors and for industrial applications, electro- magnetic type of multi-source convertor is situated the best. Coming towards control methods fuzzy logic control method is a better one compared to other control techniques.