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Analog MPPT Tracking MPP within One Switching Cycle for Photovoltaic Applications  

Ji, Sang-Keun (국민대 전자공학과)
Kwon, Doo-Il (국민대 전자공학과)
Yoo, Cheol-Hee (국민대 전자공학과)
Han, Sang-Kyoo (국민대 전자공학부)
Roh, Chung-Wook (국민대 전자공학부)
Lee, Hyo-Bum (삼성전기 Power 사업팀)
Hong, Sung-Soo (국민대 전자공학부)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.14, no.2, 2009 , pp. 89-95 More about this Journal
Abstract
Tracking the Maximum Power Point(MPP) of a photovoltaic(PV) array is usually an essential part of a PV system. The problem considered by MPPT techniques is to find the voltage $V_{MPP}$ or current $I_{MPP}$ at which a PV array should operate to generate the maximum power output PMPP under a given temperature and irradiance. The MPPT control methods, such as the perturb and observe method and the incremental conductance method require microprocessor or DSP to determine if the duty cycle should be increased or not. This paper proposes a simple and fast analog MPPT method. The proposed control scheme will track the MPP very fast and its hardware implementation is so simple, compared with the conventional techniques. The new algorithm has successfully tracked the MPP, even in case of rapidly changing atmospheric conditions, and Has higher efficiency than ordinary algorithms.
Keywords
Maximum Power Point Tracking; MPPT; Photovoltaic; Perturbation and Observation; Incremental Conductance; One Switching Cycle;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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