Comparative Study of Enhanced Power Generation Photovoltaic Array under Partial Shading Conditions using Magic Square Row Shifting Technique
Keywords:
partial shading, array configuration, magic square, Siamese methodAbstract
This paper presents a study to enhance power generation from a PV array under partial shading condition by comparing with the previous reconfiguration techniques. In this approach, the physical location of the modules was connected in a Total Cross Tied--TCT 5´5 array and reconfiguration in the Original Magic Square with Siamese method--MS, Modify Magic Square with row shifting and Standard TCT for dispersing the shading effect over the entire array. Further, this PV reconfiguration in the array; shade dispersion, reduced the effect of shading, and enhancing the generated PV power. The output power of the PV array was investigated with four different shading patterns and the results showed that the proposed MS configuration techniques enhanced power generation compared to TCT for all types of partial shading conditions, MS enhancing power generation approximately 50 percent in the case of Short Wide and 0.9-2.8 percent in other cases and the proposed Modify MS increased enhanced power in the same trend as the original MS.
References
Charoenpanitseri, W. (2013). How to build a Magic Square. Srinakharinwirot Science Journal, 29(2), 207-224. (in Thai)
De Souza Lima, A., Moreira, A. V. S., Laurindo Maitelli, A., & Barros, L. S. (2019). Maximum power point tracking through Magic Square for Photovoltaic Modules under partial shading. 2019 IEEE PES Innovative Smart Grid Technologies Conference-Latin America (ISGT Latin America) (pp. 1-6). Gramado, Brazil: IEEE. doi:10.1109/isgt-la.2019.8895275
IRENA (2017), Renewable energy outlook: Thailand. Abu Dhabi: International Renewable Energy Agency.
Kansal, I., & Pachauri, R. (2020). Mathematical puzzle based PV Array configuration for GMP enhancement under non-uniform irradiation. EAI Endorsed Transactions on Energy Web, 8, 1–10. doi:10.4108/eai.1-7-2020.165915
Namhormchan, T. (2015). Comparative study of enhanced power generation from PV Array under partial shading conditions. EAU Heritage Journal Science and Technology, 9(3), 25-34. (in Thai)
Namhormchan, T. (2018). Electric circuit 1. Pathum Thani: Eastern Asia University. (in Thai)
Rakesh, N., Madhavaram, T. V., Ajith, K., Naik, G. R., & Reddy, P. N. (2015). A new technique to enhance output power from solar PV array under different partial shaded conditions. 2015 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC) (pp. 345-348). Singapore: IEEE. doi:10.1109/edssc.2015.7285121
Rani, B. I., Ilango, G. S., & Nagamani, C. (2013). Enhanced power generation from PV Array under partial shading conditions by shade dispersion using Su Do Ku Configuration. IEEE Transactions on Sustainable Energy, 4(3), 594–601. doi:10.1109/tste.2012.2230033
Venkateswari, R., & Rajasekar, N. (2020). Power enhancement of PV system via physical array reconfiguration based Lo Shu technique. Energy Conversion and Management, 215, 112885. doi:10.1016/j.enconman.2020.112885
Yadav, K., Kumar, B., & D., S. (2020). Mitigation of mismatch power losses of PV Array under partial shading condition using novel Odd Even Configuration. Energy Reports, 6, 427–437. doi:10.1016/j.egyr.2020.01.012
