Efficient Maximum Power Point Tracking for a Distributed PV System under Rapidly Changing Environmental Conditions
- Authors
- Hong, Yohan; Pham, Son N.; Yoo, Taegeun; Chae, Kookbyung; Baek, Kwang-Hyun; Kim, Yong Sin
- Issue Date
- 8월-2015
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Binary-weighted step; distributed system; environmental conditions; maximum power point (MPP); photovoltaic (PV) system
- Citation
- IEEE TRANSACTIONS ON POWER ELECTRONICS, v.30, no.8, pp.4209 - 4218
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON POWER ELECTRONICS
- Volume
- 30
- Number
- 8
- Start Page
- 4209
- End Page
- 4218
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92877
- DOI
- 10.1109/TPEL.2014.2352314
- ISSN
- 0885-8993
- Abstract
- When conventional maximum power point tracking (MPPT) techniques are required to operate fast under rapidly changing environmental conditions, a large power loss can be caused by slow tracking speed, output power fluctuation, or additionally required ad hoc parameters. This paper proposes a fast and efficient MPPT technique that minimizes the power loss with the adaptively binary-weighted step (ABWS) followed by the monotonically decreased step (MDS) without causing output power fluctuation or requiring additional ad hoc parameter. The proposed MPPT system for a photovoltaic (PV) module is implemented by a boost converter with a microcontroller unit. The theoretical analysis and the simulation results show that the proposed MPPT provides fast and accurate tracking under rapidly changing environmental conditions. The experimental results based on a distributed PV system demonstrate that the proposed MPPT technique is superior to the conventional perturb and observe (P&O) technique, which reduces the tracking time and the overall power loss by up to 82.95%, 91.51% and 82.46%, 97.71% for two PV modules, respectively.
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Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
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