Microgrid Stability Margin Enhancement Strategy in Different Operating Conditions by Using Design of Supplementary Damping Controllers in the Most Effective Microgrid VSC

Abstract

Energy systems have received widespread attention due to their importance in our daily lives. Most of our energy generation systems are based on fossil fuels, which are non-renewable and are accompanied by unavoidable hazardous carbon emissions. The aim of the present study is to develop a strategy to enhance the stability margin of microgrids in different operating conditions by using design of supplementary damping controllers in the most effective microgrid VSC. The main objectives of this study are to investigate the dynamic behavior of the power system, which includes synchronous and asynchronous generators. For this purpose, two power sources, namely diesel generator and doubly fed wind turbine (DFIG), are considered, which are connected to the load by the transmission line. In order to investigate the dynamics of the system under disturbance conditions, various errors are also considered. Another important part includes the control system which is a combination of neural-fuzzy network (ANFIS) with current and voltage control inputs.