Bi-directional power flow control with improved power quality using intelligent controller for AC-DC coupled hybrid micro-grid system Online publication date: Mon, 16-Aug-2021
by C. Nagaraj; K. Manjunatha Sharma
International Journal of Power Electronics (IJPELEC), Vol. 14, No. 2, 2021
Abstract: Grid connected renewable sources are affected by harmonic distortion due to non-linear power electronics interfaces. Depending upon the nature of the load, many conversion stages are incorporated in the micro-grid which leads to increase in the losses. Therefore, in this paper, the AC-DC coupled hybrid micro-grid system is presented in which AC renewable sources and AC loads are connected to AC sub-grid and DC renewable sources and DC loads are connected to DC sub-grid. The shunt active power filter based 3φ 4-leg bi-directional intermediate converter using d-q load current technique is proposed to achieve the power flow between AC and DC sub-grids. The MATLAB simulation is carried out, and the performance of the proposed system is analysed using the d-q load current technique based fuzzy logic and PI controller. The obtained results demonstrate that the overall system performance is improved with the d-q load current technique based fuzzy logic controller.
Online publication date: Mon, 16-Aug-2021
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