Power enhancement of partially shaded PV arrays through shade dispersion using magic square configuration

Journal of Renewable and Sustainable Energy - Tập 8 Số 6 - 2016
Sarojini Mary Samikannu1, Namani Rakesh2, S. Senthilkumar1
1National Institute of Technology 1 Department of Electrical and Electronics Engineering, , Tiruchirappalli, Tamil Nadu, India
2Rajiv Gandhi University of Knowledge Technologies (RGUKT) 2 Department of Electrical Engineering, , Basar, Telangana, India

Tóm tắt

This paper proposes a new static reconfiguration technique to configure the modules in the Photo-Voltaic (PV) array so as to enhance the generated power from the array under partial shading conditions. In this approach, the physical location of the modules in a Total Cross Tied (TCT) connected PV array is arranged based on the Magic Square (MS) pattern so as to distribute the shading effect over the entire array. Further, this arrangement of modules is done without altering the electrical connection of the modules in the array. The MS arrangement reduces the effect of shading of modules in any row thereby enhancing the generated PV power. The MS pattern based PV array configuration has only one Global Maximum Power Point at the right most peak in the PV curve as compared to the conventional TCT configuration under partially shaded conditions. Thus, the proposed MS scheme evidently avoids the need for complex Maximum-Power-Point-Tracking algorithms. The performance of the system is investigated for different shading patterns and the results show that positioning the modules of the array according to MS pattern provides improved performance under partially shaded conditions.

Từ khóa


Tài liệu tham khảo

1998, Implementation of a DSP-controlled photovoltaic system with peak power tracking, IEEE Trans. Ind. Electron., 45, 99, 10.1109/41.661310

2008, Maximum power point tracker applied in batteries charging with PV panels, 202

2011, Review of non-isolated high-step-up DC/DC converters in Photovoltaic grid-connected applications, IEEE Trans. Ind. Electron., 58, 1239, 10.1109/TIE.2010.2049715

2011, A fast and low cost analog maximum power point tracking method for low power photovoltaic system, Sol. Energy, 85, 2771, 10.1016/j.solener.2011.08.019

2012, Power flow management algorithm for photovoltaic systems feeding DC/AC loads, Renewable Energy (Elsevier), 43, 267, 10.1016/j.renene.2011.11.035

2008, Maximum power point tracking scheme for PV systems operating under partially shaded conditions, IEEE Trans. Ind. Electron., 55, 1689, 10.1109/TIE.2008.917118

2014, Modeling and maximum power point tracking (MPPT) method for PV array under partial shade conditions, Renewable Energy, 66, 337, 10.1016/j.renene.2013.12.018

2007, An investigation of mismatch losses in solar photovoltaic cell networks, Energy, 32, 755, 10.1016/j.energy.2006.06.017

2011, A real maximum power point tracking method for mismatching compensation in PV array under partially shaded conditions, IEEE Trans. Power Electron., 26, 1001, 10.1109/TPEL.2010.2089537

2012, A new technique for tracking the global maximum power point of PV arrays operating under partial-shading conditions, IEEE J. Photovoltaics, 2, 184, 10.1109/JPHOTOV.2012.2183578

2010, Forecasting photovoltaic array power production subject to mismatch losses, Sol. Energy, 84, 1301, 10.1016/j.solener.2010.04.009

2014, Prediction of silicon PV module temperature for hot spots and worst case partial shading methods using spatially resolved lock-in thermography, Sol. Energy Mater. Sol. Cells, 120, 259, 10.1016/j.solmat.2013.09.016

2015, Artificial bee colony based algorithm for maximum power point tracking(MPPT) for PV systems operating under partial shaded conditions, Appl. Soft Comput., 32, 38, 10.1016/j.asoc.2015.03.047

2009, Experimental performance of MPPT algorithm for photovoltaic sources subject to inhomogeneous insolation, IEEE Trans. Ind. Electron., 56, 4374, 10.1109/TIE.2009.2019570

2015, Application of a combined particle swarm optimization and perturb and observe method for MPPT in PV systems under partial shading conditions, Renewable Energy, 75, 308, 10.1016/j.renene.2014.09.044

2015, Efficient MPPT control for PV systems adaptive to fast changing irradiation and partial shading conditions, Sol. Energy, 114, 397, 10.1016/j.solener.2015.02.005

2003, Partial shadowing of photovoltaic arrays With different system configurations: Literature review and field test results, Sol. Energy (Elsevier), 74, 217, 10.1016/S0038-092X(03)00155-5

2007, Development of a suitable model for characterizing photovoltaic arrays with shaded solar cells, Sol. Energy, 81, 977, 10.1016/j.solener.2006.12.001

2001, An investigation on partial shading of PV modules with different connection configurations of PV cells, Energy, 36, 3069, 10.1016/j.energy.2011.02.052

2009, A mathematical model to determine the electrical energy production in photovoltaic fields under mismatch effect, 46

2009, Electrical PV array reconfiguration strategy for energy extraction improvement in grid connected systems,”, IEEE Trans. Ind. Electron., 56, 4319, 10.1109/TIE.2009.2024664

2014, Reconfigurable electrical interconnection strategies for photovoltaic arrays: A review, Int. J. Renewable Sustainable Energy Rev., 33, 412, 10.1016/j.rser.2014.01.070

2015, Reconfiguration solution for shaded PV panels using switching control, Renewable Energy, 82, 4, 10.1016/j.renene.2014.09.041

2014, PV array reconfiguration method under partial shading conditions, Int. J. Electric. Power Energy Syst., 63, 713, 10.1016/j.ijepes.2014.06.042

2010, An adaptive solar photovoltaic array reconfiguration method based on fuzzy control, 176

2013, An optimal total cross tied interconnection for reducing mismatch losses in photovoltaic arrays, IEEE Trans. Sustainable Energy, 4, 99, 10.1109/TSTE.2012.2202325

2013, Enhanced power generation from PV array under partial shading conditions by shade dispersion using Su Do Ku configuration, IEEE Trans. Sustainable Energy, 4, 594, 10.1109/TSTE.2012.2230033

2014, Maximum power from PV arrays using a fixed configuration under different shading conditions, IEEE J. Photovoltaics, 4, 679, 10.1109/JPHOTOV.2014.2300239

2015, Positioning of PV panels for reduction in line losses and mismatch losses in PV array, Int. J. Renewable Energy, 78, 264, 10.1016/j.renene.2014.12.055

2010, Analytical modeling of partial shading and different orientation of photovoltaic modules, IET Renewable Power Gener., 3, 272, 10.1049/iet-rpg.2009.0157

2012, On the experimental validation of an improved five parameter model for silicon photovoltaic modules, Sol. Energy Mater. Sol. Cells, 105, 27, 10.1016/j.solmat.2012.05.028

2011, Hand Book of Photovoltaic Science and Engineering

2002, An efficient algorithm to simulate the electrical performance of solar photovoltaic arrays, Energy, 27, 347, 10.1016/S0360-5442(01)00089-5

2013, A mathematical model for constructing magic squares, J. Math. Comput. Sci., 3, 466

1996, Magic rectangles and modular magic rectangles, J. Stat. Plann. Inference, 51, 171, 10.1016/0378-3758(95)00081-X

1986, Making magic squares “MAGIC” seen worthy project, Math. Mag., 1, 3

1998, Number of magic squares from parallel tempering Monte Carlo, Int. J. Mod. Phys. C, 9, 541, 10.1142/S0129183198000443

2010, Experimental model to estimate shading losses on PV arrays, Sol. Energy Mater. Sol. Cells, 94, 2298, 10.1016/j.solmat.2010.07.029

2015, Recognition and modelling of irradiance transitions caused by moving clouds, Sol. Energy, 112, 55, 10.1016/j.solener.2014.11.018

2013, Effects of the sharpness of shadows on the mismatch losses of PV generators under partial shading conditions caused by moving clouds, 4081

J. Wiles, http://www.nmsu.edu/∼tdi/pdf-resources/NEC.pdf for “Photovoltaic power systems and the national electrical code: suggested practices,” 2001.

See http://wiki.xtronics.com/index.php/Wire-GaugeAmpacity for Wire Gauge Ampacity, 2013.

Thông tin
Thông tin xuất bản

Journal of Renewable and Sustainable Energy

Tập 8 Số 6

Thông tin tác giả