Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Operation Technology of PV-ESS Integrated Module for DC Micro Grid with Constant Power Tracking Algorithm
Authors Kyung Ryu ; Jun-Mo Kim ; Jeong Lee ; Chung-Yuen Won
DOI 10.6113/TKPE.2020.25.6.433
Page pp.433-441
ISSN 1229-2214
Keywords Distributed ESS (Energy Storage System); Constant power tracking algorithm; Photovoltaic; DC micro-grid
Abstract This study proposes a constant power tracking algorithm to compensate for the intermittent characteristics of Photovoltaic connected to a DC micro grid. A PV-ESS integrated module in which distributed ESS is additionally connected is utilized for the proposed algorithm. PV performs P&O MPPT control at all times. To supplement the intermittent characteristics of PV, the proposed constant power tracking algorithm maintains constant power by operating the distributed ESS of the PV-ESS integrated module in accordance with the output state of the PV. By performing PSIM simulation and an experiment, this study verifies the performance of the integrated module of PV-ESS for DC micro grids applying the constant power tracking algorithm.