ABSTRACT
Partial shading is a serious obstacle to effective utilization of photovoltaic (PV) systems since it can result in significant output power degradation for the system. A PV system is organized as a series connection of PV modules, each module comprising of a number of series-parallel connected cells. This paper presents modified PV cell structures with integrated switches, imbalanced cell connection topologies for PV modules, and a dynamic programming algorithm to produce near-optimal reconfigurations of each PV module with the goal of maximizing the system output power level under any partial shading patterns. Through simulations, we have demonstrated up to a factor of 2.3X improvement in the output power level of a PV system comprised of 3 PV modules with 60 PV cells per module.
- N. Femia, G. Petrone, G. Spagnuolo, and M. Vitelli, "Optimization of perturb and observe maximum power point tracking method," IEEE T. on Power Electronics, 2005.Google Scholar
- F. Liu, S. Duan, F. Liu, B. Liu, and Y. Kang, "A variable step size INC MPPT method for PV systems," IEEE T. on Industrial Electronics, 2008.Google Scholar
- Y. Kim, N. Chang, Y. Wang, and M. Pedram, "Maximum power transfer tracking for a photovoltaic-supercapacitor energy system," in ISLPED, 2010. Google ScholarDigital Library
- C. Lu, V. Raghunathan, and K. Roy, "Maximum power point considerations in micro-scale solar energy harvesting systems," in IEEE ISCAS, 2010.Google Scholar
- H. Patel, and V. Agarwal, "Maximum power point tracking scheme for PV systems operating under partially shaded conditions," IEEE T. on Industrial Electronics, 2008.Google Scholar
- R. Bruendlinger, B. Bletterie, M. Milde, and H. Oldenkamp, "Maximum power point tracking performance under partially shaded PV array conditions," in Proc. 21st EUPVSEC, 2006.Google Scholar
- D. Nguyen, and B. Lehman, "An adaptive solar photovoltaic array using model-based reconfiguration algorithm," IEEE T. on Industrial Electronics, 2008.Google Scholar
- G. Velasco-Quesada, F. Guinjoan-Gispert, R. Pique-Lopez, M. Roman-Lumbreras, and A. Conesa-Rosa, "Electrical PV array reconfiguration strategy for energy extraction improvement in grid-connected PV systems," IEEE T. on Industrial Electronics, 2009.Google Scholar
- M. A. Chaaban, M. Alahmad, J. Neal, J. Shi, C. Berryman, Y. Cho, S. Lau, H. Li, A. Schwer, Z. Shen, J. Stansbury, and T. Zhang, "Adaptive photovoltaic system," in IECON, 2010.Google Scholar
- Y. Kim, S. Park, Y. Wang, Q. Xie, N. Chang, M. Poncino, and M. Pedram, "Balanced reconfiguration of storage banks in a hybrid electrical energy storage system," in ICCAD, 2011. Google ScholarDigital Library
- W. Lee, Y. Kim, Y. Wang, N. Chang, M. Pedram, and S. Han, "Versatile high-fidelity photovoltaic module emulation system," in ISLPED, 2011. Google ScholarDigital Library
- Y. Wang, Y. Kim, Q. Xie, N. Chang, and M. Pedram, "Charge migration efficiency optimization in hybrid electrical energy storage (HEES) systems," in ISLPED, 2011. Google ScholarDigital Library
Index Terms
- Near-optimal, dynamic module reconfiguration in a photovoltaic system to combat partial shading effects
Recommendations
Fast photovoltaic array reconfiguration for partial solar powered vehicles
ISLPED '14: Proceedings of the 2014 international symposium on Low power electronics and designThis paper demonstrates that a partially solar powered EV can significantly save battery energy during cruising using innovative fast photovoltaic array (PV) reconfiguration. Use of all the vehicle sur- face areas, such as the hood, rooftop, door panels,...
Dynamic reconfiguration of photovoltaic energy harvesting system in hybrid electric vehicles
ISLPED '12: Proceedings of the 2012 ACM/IEEE international symposium on Low power electronics and designPhotovoltaic (PV) energy harvesting system is a promising energy source for battery replenishment in hybrid electric vehicles (HEVs.) The PV cell array is installed on different parts of a vehicle body such as the engine hood, door panels, and the roof ...
A novel intelligent optimization-based maximum power point tracking control of photovoltaic system under partial shading conditions
AbstractDue to its abundant natural supply and environmentally friendly features, solar photovoltaic (PV) production based on renewable energy is the ideal substitute for conventional energy sources. The efficiency of solar power generation under partial ...
Comments