A reconfigurable solar photovoltaic array under shadow conditions

This paper proposes an adaptive reconfiguration scheme to reduce the effect of shadows on solar panels. A switching matrix connects a solar adaptive bank to a fixed part of a solar PV array, according to a model based control algorithm that increases the power output of the solar PV array. Control algorithms are implemented in real-time. An experimental reconfiguration PV system with the battery load is presented and is shown to verify the proposed reconfigurations.

[1]  Pedro Ibañez,et al.  Intelligent PV Module for Grid-Connected PV Systems , 2006, IEEE Transactions on Industrial Electronics.

[2]  S. Elorduizapatarietxe,et al.  Intelligent PV module for grid-connected PV systems , 2004, 30th Annual Conference of IEEE Industrial Electronics Society, 2004. IECON 2004.

[3]  R. Dougal,et al.  Dynamic Multi-Physics Model for Solar Array , 2002, IEEE Power Engineering Review.

[4]  N. D. Kaushika,et al.  Energy yield simulations of interconnected solar PV arrays , 2002, 2003 IEEE Power Engineering Society General Meeting (IEEE Cat. No.03CH37491).

[5]  V. Quaschning,et al.  Numerical simulation of current-voltage characteristics of photovoltaic systems with shaded solar cells , 1996 .

[6]  Toshihisa Shimizu,et al.  Generation control circuit for photovoltaic modules , 2001 .

[7]  Ward Jewell,et al.  Limits on cloud-induced fluctuation in photovoltaic generation , 1990 .

[8]  N. F. Shepard,et al.  The integration of bypass diodes with terrestrial photovoltaic modules and arrays , 1984 .

[9]  M.A. El-Shibini,et al.  Maximum power point tracking technique , 1989, Proceedings. Electrotechnical Conference Integrating Research, Industry and Education in Energy and Communication Engineering',.

[10]  H. Watanabe,et al.  A novel utility interactive photovoltaic inverter with generation control circuit , 1998, IECON '98. Proceedings of the 24th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.98CH36200).

[11]  R. Dougal,et al.  Dynamic Multi-Physics Model for Solar Array , 2002 .

[12]  V. Quaschning,et al.  Influence of shading on electrical parameters of solar cells , 1996, Conference Record of the Twenty Fifth IEEE Photovoltaic Specialists Conference - 1996.

[13]  H. Rauschenbach Electrical output of shadowed solar arrays , 1971 .

[14]  D. D Nguyen,et al.  Modeling and Simulation of Solar PV Arrays under Changing Illumination Conditions , 2006, 2006 IEEE Workshops on Computers in Power Electronics.

[15]  Martin A. Green,et al.  Effect of shunt resistance and bypass diodes on the shadow tolerance of solar cell modules , 1982 .