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Keywords
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distributed power condition controller, fuzzy, harmonics, multimicrogrid, power quality, voltage drop
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Abstract
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The aim of this paper is to improve power quality in a multimicrogrid (MMG)
with high penetration of various distributed generators in island and interconnected
mode using an improved custom power device called distributed power
condition controller (DPCC). The DPCC is an improved, low‐cost, reliable
combined custom power device to compensate simultaneously the voltage
drop, harmonic distortions, and feeder losses in the MMG, which includes
the verity of nonlinear source. It has great market potential and has been
selected as the solution for more specific applications. The capability of the
DPCC is increased by discrete fuzzy‐based PI controller. In addition, the power
injection model of DPCC is presented. Two different case studies corresponding
to the island mode and high penetration of renewable generation and nonlinear
load in connected mode are considered. According to theoretical studies
and simulation results, DPCC successfully improves power quality of the
MMGs.
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