Current droop control of parallel inverters in an autonomous microgrid

The load sharing analysis in an autonomous microgrid (MG) with renewable energy sources (RES) is an important issue. The inverter is employed to integrate a distributed generation system to the utility grid, or to run the load available in the microgrid is an essential concept in the autonomous microgrid. In that situation, there is a growing demand in developing a proper control strategy to draw current with fewer distortion from the inverter, and there is a condition to connect two or more sources in parallel for satisfying the load requirements (sharing of loads). To connect two or more DG units to the load, there is a requirement of paralleling the inverters. This paper presents the development of a hybrid controller for load sharing from different DGs with the help of a parallel-connected inverters interface. The proposed systems help improve the quality of power, reliability, and economical operation of the autonomous microgrid. (c) 2021 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Conference on Advances in Materials Research-2019.