Performance Analysis of Reduced Communication Network in DC Microgrid

Distributed secondary controllers for dc microgrids have proven to be more effective and reliable as compared to decentralized and centralized controllers, respectively. The distributed secondary controller relies on information exchange between the distributed units. Conventionally, a full communication network topology is used, wherein all controllers communicate with each other. Recently, adoption of consensus control in DC microgrids have enabled achieving good performance using reduced communication network. This work aims at comparing the performance of the secondary controller with reduced and full communication topologies. It is shown that with proper tuning of gains, the secondary controller under reduced communication has similar performance as under full communication. The results are substantiated with numerical simulations using MATLAB/Simulink.