期刊名称：Balkan Journal of Electrical & Computer Engineering
印刷版ISSN：2147-284X
出版年度：2019
卷号：7
期号：3
页码：269-275
DOI：10.17694/bajece.543668
语种：English
出版社：Kirklareli University
摘要：Submodule levelmaximum power point tracking (MPPT) systems have become popular due to itsoutstanding performance in partial shading conditions (PSCs) and basicalgorithm requirement. MPPT is realized by DC-DC converters. They are powerprocessing units between photovoltaic (PV) module and load. Among DC-DCconverter topologies, flyback is a proper choice since it can either increaseor decrease the voltage. Furthermore, power level is small in submodule levelMPPT applications. In this study, analyzes and power circuit design of flybackconverter for continuous conduction mode (CCM) are carried out firstly. Then, performanceof flyback converter on submodule level MPPT system and its superiority overthe module level MPPT is shown by using same converter topology and perturb andobserve (P&O) algorithm. In order to validate the superior performance ofsubmodule level MPPT, it is compared with module level MPPT in MATLAB/Simulinkenvironment. Results show that submodule level MPPT guarantees global MPPT inany PSCs with any kind of basic MPPT algorithm. On the other hand, module levelMPPT fails in many PSCs with the same algorithm. According to simulationresults, submodule level MPPT generated more power by 61.2% in average thanmodule level MPPT systems in simulation studies.
关键词：Distributed MPPT;flyback;maximum power point tracking;photovoltaic;submodule
