A 4.5kW Solar-Battery Powered DC-AC Converter for Rural Dwellers
Keywords:
Battery, Converter, Dweller, Rural, SolarAbstract
A solar-battery powered DC-AC converter for rural dwellers is presented in the paper. The study presents a DC-AC converter for rural residents that is powered by solar power and batteries. Using DC-DC and DC-AC power converters, the low DC voltage from the solar panel and battery is first converted to a high DC voltage, which is subsequently transferred via an H-bridge to convert it to AC voltage. Odd harmonics were then reduced to provide a nice sine wave voltage by adding an inductance-capacitance filter to the DC-AC converter’s output. In rural settlements, the output sine wave voltage is appropriate for AC applications. Additionally, two unique two-in-one IGBT switches were employed in the H-bridge section, which reduced the rate of power cable consumption and stress-soldering as well as stray inductance interferences. The suggested system has a 4.5kW capacity and produces a refined sine wave AC voltage of 325.00V, 50.00Hz with a THD ratio of 0.250%. The system has undergone experimental testing, simulation, and design. The technology successfully finds uses in homes, workplaces, and other locations.
References
E. I. Umbu and J. Agada, “Energy crisis in Nigeria: A call for a democratized energy sector,” SSRN Electronic Journal, Jan. 2023, doi: https://doi.org/10.2139/ssrn.4560140
S. K. Mazumder, R. K. Burra, R. Huang and V. Arguelles, “A low-cost single-stage isolated differential ĈCuk inverter for fuel-cell application,” 2008 IEEE Power Electronics Specialists Conference, Rhodes, Greece, 2008, pp. 4426-4431, doi: https://doi.org/10.1109/PESC.2008.4592659
Y. Zhang, J. Liu and C. Zhang, “Comparison of traditional two-stage buck-boost voltage source inverter and diode-assisted buck-boost voltage source inverter,” 2012 Twenty-Seventh Annual IEEE Applied Power Electronics Conference and Exposition (APEC), Orlando, FL, USA, 2012, pp. 141-148, doi: https://doi.org/10.1109/APEC.2012.6165810
CU Eya, C. Odeh, D. Nnadi, M. Agu, and E. Obe, “Utility interfaced pulse-width modulation of solar fed voltage source inverter using fixed-band hysteresis current controller method,” Nigerian Journal of Technology, vol. 31, no. 1, pp. 48–57, 2019, 2025. Available: https://www.ajol.info/index.php/njt/article/view/123558
W. Subsingha, “Design and analysis three phase three level diode-clamped grid connected inverter,” Energy Procedia, vol. 89, pp. 130–136, Jun. 2016, doi: https://doi.org/10.1016/j.egypro.2016.05.019
Krishna Kantha and P. Deepthi Sree, “Analysis, simulation & comparison of various multilevel inverters using different PWM strategies,” IOSR Journal of Electrical and Electronics Engineering, vol. 9, no. 2, pp. 54–65, Jan. 2014, doi: https://doi.org/10.9790/1676-09275465
M. H. Rashid, Power Electronics: Circuits, Devices and Applications, 4th ed., Prentice-Hall of India, 2013.
My Ton, Brian Fortenbery, and William Tschudi, “DC power for improved data center for efficiency,” Lawrence Berkeley National Laboratory, January 2007. Available: https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=f3585776ff881a9923ea3d7e6c3cc9d9868b4253
Satish K. Peddapelli, Recent Advances in Pulse Width Modulation Techniques & Multilevel Inverters,” World Academy of Sci., Engi. & Technology International Journal of Electrical and Computer Engineering. Vol.8 N0.3, 2014. Available:https://kipdf.com/recent-advances-in-pulse-width-modulation-techniques-and-multilevel-inverters-sa_5b1257397f8b9a122c8b45af.html
Yadong Liu, Xuezhi Wu, and Lipei Huang, “Implementation of three-level inverter using a novel space vector modulation algorithm,” Proceedings. International Conference on Power System Technology, Kunming, China, 2002, pp. 606-610 vol. 1, doi: https://doi.org/10.1109/ICPST.2002.1053614
Sanmin Wei, Bin Wu, Fahai Li, and Congwei Liu, “A general space vector PWM control algorithm for multilevel inverters,” Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC ‘03., Miami Beach, FL, USA, 2003, pp. 562-568 vol.1, doi: https://doi.org/10.1109/APEC.2003.1179268
M. M. Prats, R. Portillo, J. M. Carrasco and L. G. Franquelo, “New fast space-vector modulation for multilevel converters based on geometrical considerations,” IEEE 2002 28th Annual Conference of the Industrial Electronics Society. IECON 02, Seville, Spain, 2002, pp. 3134-3139 vol.4, doi:https://doi.org/10.1109/IECON.2002.1182898
Golam Sarowar, M. A. Choudhury, and M. A. Hoque, “A novel control scheme for Buck-Boost DC to AC converter for variable frequency applications,” Procedia - Social and Behavioral Sciences, vol. 195, pp. 2511–2519, Jul. 2015, doi: https://doi.org/10.1016/j.sbspro.2015.06.432
H. S. Patel and R. G. Hoft, “Generalized techniques of harmonic elimination and voltage control in thyristor inverters: Part I–Harmonic elimination,” in IEEE Transactions on Industry Applications, vol. IA-9, no. 3, pp. 310-317, May 1973, doi: https://doi.org/10.1109/TIA.1973.349908
K. Thorborg, “Staircase PWM: An uncomplicated and efficient modulation technique for AC motor drives,”. 17th Annual IEEE Power Electronics Specialists Conference, Vancouver, BC, Canada, pp. 593-602, 1986. doi:https://doi.org/10.1109/PESC.1986.7415612