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Short‐current pulse‐based adaptive maximum‐power‐point tracking for a photovoltaic power generation system
Author(s) -
Noguchi Toshihiko,
Togashi Shigenori,
Nakamoto Ryo
Publication year - 2002
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.1147
Subject(s) - maximum power point tracking , current (fluid) , control theory (sociology) , photovoltaic system , maximum power principle , power (physics) , pulse width modulation , controller (irrigation) , point (geometry) , operating point , tracking (education) , pulse (music) , computer science , electronic engineering , voltage , engineering , electrical engineering , physics , mathematics , control (management) , psychology , agronomy , pedagogy , geometry , quantum mechanics , inverter , artificial intelligence , biology
Abstract This paper focuses on a maximum‐power‐point tracking method of photovoltaics via use of the short‐current pulse. It has been reported that the optimum operating current is proportional to the short current and that maximum‐power‐point tracking can be performed by detecting the short current. The proposed method utilizes the intermittent short‐current pulse to estimate the optimum operating current and its operating characteristics have experimentally been verified. Also, an adaptive mechanism to identify the parameter between the optimum current and the short current is discussed. A prototype of the controller has been set up and the experimental results have demonstrated excellent performance, proving the feasibility of the system. © 2002 Scripta Technica, Electr Eng Jpn, 139(1): 65–72, 2002; DOI 10.1002/eej.1147