In this chapter, the design and control of DC microgrids will be discussed. Depending on the time and bandwidth requirements, microgrid controllers can be categorized to primary local controllers (LC) and secondary microgrid central controllers (MGCC). The functions of the two categories of controllers will be presented and explained, using simulations and hardware experiments. In addition, the design of the power electronic converters linking the various resources and loads within the DC microgrid to the common DC bus, as well as the converters used to connect the microgrid to the main grid, will be presented. An example of the interaction of the MGCC with the controller of the main grid will be investigated. This chapter is intended to give a practical overview of the design and control of DC microgrids.
Part of the book: Energy Management of Distributed Generation Systems