Maximum photovoltaic power tracking for the PV array using the fractional-order incremental conductance method

Chia-Hung Lin, Cong-Hui Huang, Yi-Chun Du and Jian-Liung Chen

Applied Energy, 2011, vol. 88, issue 12, 4840-4847

Abstract: This paper proposes maximum photovoltaic power tracking (MPPT) for the photovoltaic (PV) array using the fractional-order incremental conductance method (FOICM). Since the PV array has low conversion efficiency, and the output power of PV array depends on the operation environments, such as various solar radiation, environment temperature, and weather conditions. Maximum charging power can be increased to a battery using a MPPT algorithm. The energy conversion of the absorbed solar light and cell temperature is directly transferred to the semiconductor, but electricity conduction has anomalous diffusion phenomena in inhomogeneous material. FOICM can provide a dynamic mathematical model to describe non-linear characteristics. The fractional-order incremental change as dynamic variable is used to adjust the PV array voltage toward the maximum power point. For a small-scale PV conversion system, the proposed method is validated by simulation with different operation environments. Compared with traditional methods, experimental results demonstrate the short tracking time and the practicality in MPPT of PV array.

Keywords: Maximum photovoltaic power tracking (MPPT); Photovoltaic (PV) array; Fractional-order incremental conductance method (FOICM); Small photovoltaic system (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (31)

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DOI: 10.1016/j.apenergy.2011.06.024

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