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The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title: Research on MPPT methods for photovoltaic system based on microgrid
Author: Ji, Jingchu
View Online: njit-etd2013-055
(xii, 49 pages ~ 1.4 MB pdf)
Department: Department of Electrical and Computer Engineering
Degree: Master of Science
Program: Electrical Engineering
Document Type: Thesis
Advisory Committee: Zhou, MengChu (Committee chair)
Ge, Hongya (Committee member)
Xia, Yunni (Committee member)
Date: 2013-05
Keywords: Microgrids
Photovoltaic system structure
Maximum power point tracking
Availability: Unrestricted
Abstract:

This thesis introduces some basic concepts about a microgrid. Then it discusses the structure of photovoltaic system (PVS) which contains a solar panel and simplified PV models. Next, it discusses and compares different methods for Maximum Power Point Tracking (MPPT) with PVS. It presents three types of DC-DC converters -- Buck, Boost and Buck-Boost converter. This work proposes to apply a DC-DC converter of Buck-Boost type to make PVS controllable because this type of converter has the largest range for operational region so that it can get the best result on MPPT. Finally, this thesis presents a kind of new MPPT method based on fuzzy logic theory. It concludes that the proposed method is effective in achieving MPPT in comparison with the prior arts.


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