A Fuzzy Logic Based Three phase Inverter with Single DC Source for Grid Connected PV System Employing Three Phase Transformer

Abstract

A fuzzy based three phase inverter with single DC source for grid connected photo voltaic (PV) system employing three phase transformer is presented in this paper. Space Vector Pulse Width Modulation (SVPWM) control scheme is effectively used to generate the appropriate switching sequences to the inverter switches. The intend of the fuzzy logic approach is to meet high quality output, fast response and high robustness. Finally Total Harmonics Distortion (THD) generated by the inverter is compared with conventional proportional Integral controls (PI). The results are verified with the help of MATLAB Simulink.

Keywords

• Fuzzy logic controller; Single DC source; Space Vector Pulse Width Modulation;THD.

References

1. J. Rodriguez, J. Lai. J, “Multilevel inverters: a survey topologies, control and applications, IEEE Trans. Ind. Electron. 49, Vol. 4, 724-738, Aug. 2002.
2. Atiqah Hamizah Mohd Nordin., Ahmad Maliki Omar., Hedzlin Zainuddin., “Modeling and simulation of grid Inverter in grid connected photovoltaic system”, International Journal of Renewable Energy Research, Vol. 4, No. 4, 2014.
3. Jayalakshmi N. S., D. N. Gaonkar, Anusree Balan, Prasanna Patil, Syed Adil Raza., “Dynamic modeling and performance study of a stand-alone photovoltaic system with battery supplying dynamic load”, International Journal of Renewable Energy Research Vol.4, No.3, 2014.
4. Mida Dris., Benattous Djilani., “Comparative study of algorithms (mppt) applied to photovoltaic systems”, International Journal of Renewable Energy Research, Vol.3, No.4, 2013.
5. K. L. Lian, Member, IEEE, J. H. Jhang, and I. S. TianA, “Maximum power point tracking method based on perturb-and-observe combined with particle swarm optimization” IEEE Journal of Photovoltaics, Vol. 4, No. 2, March 2014.
6. Maruthupandi permal., Deverajan Nanjundapan., “Performance enhancement of embedded system based multilevel inverter using genetic algorithm”, Journal of Electrical Engineering ,vol.62, No. 4, pp 190-198, 2011.
7. M. Valan Rajkumar , P.S. Manoharan, 2013. FPGA based multilevel cascaded inverters with MSVPWM algorithm for photovoltaic system. Solar Energy 87: 229–245.
8. Sung Geun Song., Feel Soon Kang., Sung-Jun Park.,” Cascade multilevel inverter employing three phase transformer and single DC input”, IEEE Trans. Ind. Electron., vol.56: No. 6, pp. 2005–2014, 2009.

9. Y. Suresh., A.K. Panda.,” Research on cascade multilevel inverter by using three phase transformer”, Electrical Power and Energy Systems, Vol. 40, pp. 9– 20, 2012.
10. Nasrudin A. Rahim, Jeyraj S. Multistring., “Five-level inverter with novel pwm control scheme for PV application“, IEEE Trans. Ind. Electron. Vol. 57, pp. 2111–2123. 2010.
11. Shao Jie., Tan Peng., Xu Yuan., Jin Xiangjun1., Reza Malekian.,”An improved Synchronous Control Strategy Based on Fuzzy Controller for PMSM”, Elektronika Ir Elektrotechnika, Vol. 20, No. 6, 2014.
12. Nguyen Gia Minh Thao and Kenko Uchida, „‟Active and reactive power control techniques based on feedback linearization and fuzzy logic for three-phase grid-connected photovoltaic inverters‟‟ Asian Journal of Control, Vol. 17, No. 5, pp. 1–25, September 2015.
13. V. G. Agelidis., D. M. Baker., W. B. Lawrance., and C. V. Nayar., “A multilevel PWM inverter topology for photovoltaic applications”, in Proc. the IEEE International Symposium on Ind. Electronics, Vol. 2, No. 6, pp. 589-594, 1997.
14. Chinnathambi Govindaraju, Baskaran,”Power Loss Minimizing control of cascaded multilevel inverter with efficient hybrid carrier based space vector modulation”, International Journal of Electrical and Computer Engineering Systems, Vol. 1, No. 1, pp 43-53, June 2010. Kaliaperumal