Performance Enhancement of a Hybrid AC-DC Microgrid Operating

An additional set of power electronic converters is necessary to connect these DC loads to the AC-dominant power network, due to the considerable rise in DC loads such as data and communications centres at the power distribution level. In particular, hybrid AC/DC microgrids (MGs) are promising options for meeting both AC and DC loads with a less number of converters installed. Because DC loads may be spread randomly in the MG, determining where to deploy DC feeders to meet the economic and security needs of MG operations remains a difficult task. DC feeders with the goal of lowering the total cost of distributed energy resources (DERs), the functioning of DERs, as well as the use of converters and AC/DC distribution lines. The power flow of the hybrid AC/DC MG, in particular, is derived in a unified manner before being incorporated into the planning model. Finally, the suggested model is sufficient for determining the best number and placement of both DERs and DC feeders while maintaining DC feeder continuity. The suggested model is evaluated in two MG-based distribution systems, and the results of numerical trials confirm its efficacy.

Author(s): Rowby Hutia

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