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- Title
Reconfigurable Distributed Power Electronics Technique for Solar PV Systems.
- Authors
Niazi, Kamran Ali Khan; Yang, Yongheng; Kerekes, Tamas; Sera, Dezso; Morrison, Alan
- Abstract
A reconfiguration technique using a switched-capacitor (SC)-based voltage equalizer differential power processing (DPP) concept is proposed in this paper for photovoltaic (PV) systems at a cell/subpanel/panel-level. The proposed active diffusion charge redistribution (ADCR) architecture increases the energy yield during mismatch and adds a voltage boosting capability to the PV system under no mismatch by connected the available PV cells/panels in series. The technique performs a reconfiguration by measuring the PV cell/panel voltages and their irradiances. The power balancing is achieved by charge redistribution through SC under mismatch conditions, e.g., partial shading. Moreover, PV cells/panels remain in series under no mismatch. Overall, this paper analyzes, simulates, and evaluates the effectiveness of the proposed DPP architecture through a simulation-based model prepared in PSIM. Additionally, the effectiveness is also demonstrated by comparing it with existing conventional DPP and traditional bypass diode architecture.
- Subjects
POWER electronics; SOLAR cells; SOLAR system; MAXIMUM power point trackers; COMPUTER performance; DIODES
- Publication
Electronics (2079-9292), 2021, Vol 10, Issue 9, p1121
- ISSN
2079-9292
- Publication type
Article
- DOI
10.3390/electronics10091121