Multi-unit multi-bus DC microgrid

What are the control objectives for Multi-Bus DC microgrids?

The fundamental and challenging control objectives for multi-bus DC microgrids are bus voltage regulation and current sharing with transmission loss minimization. In this paper, a multi-objective optimization problem with penalty factors is formulated, and the global optimal solution is presented explicitly.

What is a single-bus dc microgrid?

The single-bus DC microgrid structure is the basic topology for all bus systems and other DC microgrid architectures. The feeder structure or radial structure are other names for this structure. Energy sources, energy storage devices, and loads are all connected to the system's single DC bus directly or via a converter.

Are current sharing and voltage regulation important in Multi-Bus DC microgrids?

It is well known that accurate current sharing and voltage regulation are both important, yet conflicting control objectives in multi-bus DC microgrids. In this paper a distributed control scheme is proposed, which simultaneously considers these two control objectives via a trade-off factor.

What is dc microgrid architecture?

DC microgrid architecture with their application, advantage and disadvantage are discussed. The DC microgrid topology is classified into six categories: Radial bus topology, Multi bus topology, Multi terminal bus topology, Ladder bus topology, Ring bus topology and Zonal type bus topology.

Can a multi-bus dc microgrid be modeled?

Generic meshed DC microgrids with long-distance transmission lines can be modeled by multi-bus DC microgrids, where impedances of the transmission lines cannot be neglected. In multi-bus DC microgrids, voltage regulation and current sharing turn out to be conflicting objectives ( Han et al., 2019 ).

What is radial dc microgrid bus?

Depending on the purpose and requirements, the radial DC microgrid bus could be unipolar or bipolar. This configuration is common in residential buildings because majority of the appliances uses low voltage, therefore, low DC bus voltage is preferred while avoiding additional chopper conversion stages.