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An MPPT control scheme for a PV system utilizing limit cycle operation and its system design
Author(s) -
Kitano Tatsuya,
Matsui Mikihiko,
Xu DeHong
Publication year - 2003
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.10134
Subject(s) - maximum power point tracking , control theory (sociology) , maximum power principle , limit (mathematics) , photovoltaic system , power (physics) , operating point , hill climbing , point (geometry) , computer science , engineering , control (management) , voltage , mathematics , physics , electronic engineering , electrical engineering , algorithm , mathematical analysis , geometry , quantum mechanics , inverter , artificial intelligence
Abstract This paper proposes a new simple maximum power point tracking (MPPT) control scheme for a PV system without using conventional “mountain climbing” optimum operating point searching technique. Although no information is needed on PV array, the generated output power is maximized by utilizing limit cycle phenomena occurring on the equilibrium/nonequilibrium boundary of system power flow. A parameter design procedure to determine operating period based on a theoretical model is presented. It has been found that the operating period of limit cycle is kept constant depending on the circuit and control parameters irrespective of the insolation conditions of PV array. Availability of the proposed new MPPT control scheme has been shown by simulation and experimental results. © 2003 Wiley Periodicals, Inc. Electr Eng Jpn, 143(2): 67–75, 2003; Published online in Wiley InterScience ( www.interscience.wiley.com ). DOI 10.1002/eej.10134