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.
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.
In the islanded mode operation of a microgrid, a part of the distributed network becomes electrically separated from the main grid, while loads are supported by local DERs. Such DERs are typically power electronic based, making the full system complex to study.
Since microgrids are made up of several components that can function in network distribution mode using AC, DC, and hybrid systems, an appropriate control strategy and monitoring system is necessary to ensure that the power from microgrids is delivered to sensitive loads and.
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