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2015年 第9卷 第1期

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《能源前沿（英文）》 >> 2015年 第9卷 第1期 doi: 10.1007/s11708-014-0343-5

Fractional order extremum seeking approach for maximum power point tracking of photovoltaic panels

1. Research Unit in Renewable Energies in the Saharan Medium, CDEREPST, URER-MS, Adrar 01000, Algeria; Department of Electrical Engineering, University of Skikda, Skikda 21000, Algeria.2. Department of Electronics, Electrotechnics and Automatics, National Polytechnic School of Constantine, Constantine 25000, Algeria; SP-Lab Laboratory, Department of Electronics, University of Constantine 1, Constantine 25000, Algeria.3. SP-Lab Laboratory, Department of Electronics, University of Constantine 1, Constantine 25000, Algeria.4. Research Institute in Communications and Cybernetics, CNRS UMR 6597, 1 rue de la No? 44321 Nantes, France

录用日期： 2015-02-04 发布日期： 2015-03-02
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Due to the high interest in renewable energy and diversity of research regarding photovoltaic (PV) array, a great research effort is focusing nowadays on solar power generation and its performance improvement under various weather conditions. In this paper, an integrated framework was proposed, which achieved both maximum power point tracking (MPPT) and minimum ripple signals. The proposed control scheme was based on extremum-seeking (ES) combined with fractional order systems (FOS). This auto-tuning strategy was developed to maximize the PV panel output power through the regulation of the voltage input to the DC/DC converter in order to lead the PV system steady-state to a stable oscillation behavior around the maximum power point (MPP). It is shown that fractional order operators can improve the plant dynamics with respect to time response and disturbance rejection. The effectiveness of the proposed controller scheme is illustrated with simulations using measured solar radiation data.

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