A novel MPPT method for PV systems with irradiance measurement

Abstract Maximum Power Point Tracking (MPPT) is needed in a photovoltaic system to ensure the operation in the Maximum Power Point (MPP), maximizing the generated energy. Many MPPT techniques have been developed. Perturbation and observation, as well as incremental conductance, are by far the most widely used because of their simplicity. However, they have some weak points and problems that affect their efficiency, especially under rapid irradiance changes and partial shading. This paper proposes a novel MPPT method which can be implemented in PV (photovoltaic) inverters and charge controllers. The most innovative feature is the presence of photodiodes as irradiance sensors. Thanks to irradiance measurement, the proposed method can recognize problematic scenarios and execute specific algorithms to prevent malfunction under these situations. The MPPT method has been theoretically analyzed; efficiency results are shown in comparison with standard techniques, which verify its feasibility.

[1]  Engin Karatepe,et al.  Performance enhancement of photovoltaic array through string and central based MPPT system under non-uniform irradiance conditions , 2012 .

[2]  Mikhail Sorin,et al.  Explicit model of photovoltaic panels to determine voltages and currents at the maximum power point , 2011 .

[3]  G. Petrone,et al.  A two-steps algorithm improving the P&O steady state MPPT efficiency , 2014 .

[4]  Youbing Zhang,et al.  Modeling and maximum power point tracking (MPPT) method for PV array under partial shade conditions , 2014 .

[5]  R. Faranda,et al.  MPPT techniques for PV Systems: Energetic and cost comparison , 2008, 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.

[6]  Antonio Luque,et al.  Handbook of photovoltaic science and engineering , 2011 .

[7]  Zhengming Zhao,et al.  MPPT techniques for photovoltaic applications , 2013 .

[8]  C. Ramos-Paja,et al.  Modeling of photovoltaic fields in mismatched conditions for energy yield evaluations , 2011 .

[9]  Syafaruddin,et al.  Modeling and simulation of photovoltaic (PV) system during partial shading based on a two-diode model , 2011, Simul. Model. Pract. Theory.

[10]  Andres Barrado,et al.  Review of the maximum power point tracking algorithms for stand-alone photovoltaic systems , 2006 .

[11]  Yong Yang,et al.  Adaptive Perturb and Observe MPPT Technique for Grid- Connected Photovoltaic Inverters , 2011 .

[12]  Rajesh Kumar Nema,et al.  Maximum power point tracking control techniques: State-of-the-art in photovoltaic applications , 2013 .

[13]  P.L. Chapman,et al.  Comparison of Photovoltaic Array Maximum Power Point Tracking Techniques , 2007, IEEE Transactions on Energy Conversion.

[14]  Jubaer Ahmed,et al.  The application of soft computing methods for MPPT of PV system: A technological and status review , 2013 .

[15]  Nuri Gokmen,et al.  Voltage band based global MPPT controller for photovoltaic systems , 2013 .

[16]  Ali Zilouchian,et al.  Photovoltaic model and converter topology considerations for MPPT purposes , 2012 .

[17]  Kashif Ishaque,et al.  A review of maximum power point tracking techniques of PV system for uniform insolation and partial shading condition , 2013 .

[18]  Mohammad Hassan Moradi,et al.  Classification and comparison of maximum power point tracking techniques for photovoltaic system: A review , 2013 .

[19]  Wang Min,et al.  Design of MPPT algorithm under partial shadows , 2011, 2011 International Conference on Electric Information and Control Engineering.

[20]  E. Muljadi,et al.  A cell-to-module-to-array detailed model for photovoltaic panels , 2012 .

[21]  Ali Naci Celik,et al.  Modelling and experimental verification of the operating current of mono-crystalline photovoltaic modules using four- and five-parameter models , 2007 .

[22]  Kashif Ishaque,et al.  Simple, fast and accurate two-diode model for photovoltaic modules , 2011 .

[23]  Soteris A. Kalogirou,et al.  New MPPT method for stand-alone photovoltaic systems operating under partially shaded conditions , 2013 .

[24]  Kok Soon Tey,et al.  Modified incremental conductance MPPT algorithm to mitigate inaccurate responses under fast-changing solar irradiation level , 2014 .

[25]  Constantinos Sourkounis,et al.  Variable step size P&O MPPT algorithm for PV systems , 2010, 2010 12th International Conference on Optimization of Electrical and Electronic Equipment.

[26]  A. Messai,et al.  FPGA-based real time implementation of MPPT-controller for photovoltaic systems , 2011 .

[27]  Alessandra Di Gangi,et al.  A procedure to calculate the five-parameter model of crystalline silicon photovoltaic modules on the basis of the tabular performance data , 2013 .