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http://dx.doi.org/10.6113/TKPE.2020.25.6.433

Operation Technology of PV-ESS Integrated Module for DC Micro Grid with Constant Power Tracking Algorithm  

Ryu, Kyung (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Kim, Jun-Mo (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Lee, Jeong (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Won, Chung-Yuen (Dept. of Electrical and Computer Engineering, Sungkyunkwan University)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.25, no.6, 2020 , pp. 433-441 More about this Journal
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.
Keywords
Distributed ESS (Energy Storage System); Constant power tracking algorithm; Photovoltaic; DC micro-grid;
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