Microgrid is the key technology to allow the power grid to accept more clean distributed renewable energy generations. Compared to alternating current (AC) power systems, direct current (DC) power systems has the advantages of simpler control, higher reliability and efficiency.
This chapter introduces concepts of DC MicroGrids exposing their elements, features, modeling, control, and applications. Renewable energy sources, en-ergy storage systems, and loads are the basics components of a DC MicroGrid.
The BMS modules enable control of up to 16 battery strings. Complex system designs are hierarchically scaled and include BMS MASTER and BMS SLAVE modules, where BMS SLAVE modules exchanges data with the BMS MASTER module via built-in CAN communication.
In a grid connected mode, the objective of microgrid operation is to maximize renewable power and enable participation in behind-the-meter (BTM) applications such as peak shaving, energy arbitrage, and ancillary services. Such an operation results in reduction of electricity.
To achieve flexible and seamless interconnections between multiple MGs, we fully analyzed the interconnected structures and operation modes of the MGs; then, we designed a transient switching control method based on investigation of the transient interconnection processes to ensure.
A resilient distributed secondary control strategy is proposed for DC microgrids (MGs) with denial-of-service (DoS) attacks on communication channels to achieve accurate current sharing and voltage regulation.
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