A Review of DC Bus Signalling Control Methods in DC Microgrids

Abstract

The concept of DC microgrids has been proposed to adopt more renewable energy sources in future smart electric power distribution networks. DC bus signalling is one of the secondary layer control methods that has been widely applied in DC microgrids when the communication infrastructure is absent or under failure. It has advantages in regulating specific DC microgrids with countable working states, such as household applications. This method has achieved fast development over the past decades and there is still no existing literature review that classifies and compares those methods. Driven by this idea, this paper provides a review based on reported DC bus signalling methods in the IEEE Xplore library.

A critical evaluation of DC microgrid implementation in Indonesia: opportunities and challenges

“…Moreover, hybrid AC/DC microgrids potentially integrate AC and DC generation and loads with minimal conversion, indicating enhanced efficiency and reliability [31]. In literature, traditional hierarchical control approaches using DC microgrids frequently proved to be enabling mechanisms for the realization of the intelligent microgrids with a hold on advanced microgrid structures [32]. According to the research, DC microgrids achieve success by using single-line-oriented control mechanisms that involve varied generation, storage, converters, and load [33].…”