Abstract
ABSTRACT Due to advancements in power electronics devices and the support of improvements on both the power supply and load sides, Distributed Energy (DG) is rapidly being connected to the grid in the form of AC/DC Hybrid Micro-Grid (HMG). The development will result in a substantial change in the network topology, new design problems for the micro-grid control unit, and new requirements for the simulation testing laboratory. The Bidirectional AC-DC converter (BAC) is necessary for hybrid microgrids to provide voltage stableness and power equilibrium between the AC and DC grids. To suppress the harmonic current control approach, an enhanced Fryze-Buchholz Depenbrock (FBD) current harmonic detection technique is integrated with droop control in this paper. This proposed system not only performs the power transformation but also minimizes harmonics. While considering non-linear load, the proposed system yields the control ability for regulating the converter to eliminate the harmonics of 74.41% in the grid current. While incorporating the HMG in the proposed system, the control strategy decreases 90.3% and 89.4% of reactive power in both linear and non-linear loads. The obtained simulation results are used to confirm the feasibility and effectiveness of the control scheme.
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