Research ArticleOpen AccessGoogle Scholar indexed
Experimental Analysis of Seven-Level Cascaded VSI with SVPWM Algorithm Utilizing FPGA for Photovoltaic System
Department of Electrical and Electronics Engineering, Pandian Saraswathi Yadav Engineering College, Sivagangai, India
Department of Electrical and Electronics Engineering, Pandian Saraswathi Yadav Engineering College, Sivagangai, India
- 1 Department of Electrical and Electronics Engineering, Pandian Saraswathi Yadav Engineering College, Sivagangai, India
- 2 Department of Electrical and Electronics Engineering, Pandian Saraswathi Yadav Engineering College, Sivagangai, India
Copy link · social · email
Abstract
This paper presents field programmable gate array (FPGA) implementation of space vector pulse width modulation (SVPWM) algorithm for a three-phase seven-level cascaded H-bridge multilevel inverter (CHMLI) for photovoltaic (PV) systems. The maximum power point tracking (MPPT) algorithm is solved by fuzzy logic controller. SVPWM algorithm uses a simple mapping to generate gate signals for the inverter. A digital design of SVPWM generator using hardware description language (VHDL) is proposed and implemented on FPGA. This is done to achieve high dynamic performance with low total harmonic distortion (THD). The results of proposed seven-level cascaded voltage source inverter (VSI) are compared with the five-level inverter in terms of THD. The simulated results are also validated through suitable experiments.
KeywordsPhotovoltaic (PV) SystemCascaded H-Bridge Multilevel Inverter (CHMLI)Space Vector Pulse Width Modulation (SVPWM)Field Programmable Gate Array (FPGA)Total Harmonic Distortion (THD)
- Ahmad, G.E., Hussein, H.M.S. and El-Ghetany, H.H. (2003) Theoretical Analysis and Experimental Verification of PV Modules. Renewable Energy , 28, 1159-1168. https://doi.org/10.1016/s0960-1481(02)00228-8
- Villalva, M.G., Gazoli, J.R. and Filho, E.R. (2009) Comprehensive Approach to Modeling and Simulation of Photovoltaic Arrays. IEEE Transactions on Power Electronics , 24, 1198-1208. https://doi.org/10.1109/tpel.2009.2013862
- Gounden, N.A., Ann Peter, S., Nallandula, H. and Krithiga, S. (2009) Fuzzy Logic Controller with MPPT Using Line-Commutated Inverter for Three-Phase Grid-Connected Photovoltaic Systems. Renewable Energy , 34, 909-915. https://doi.org/10.1016/j.renene.2008.05.039
- Chang, G.W., Chen, S., Su, H. and Wang, P. (2011) Accurate Assessment of Harmonic and Interharmonic Currents Generated by VSI-Fed Drives under Unbalanced Supply Voltages. IEEE Transactions on Power Delivery , 26, 1083-1091. https://doi.org/10.1109/tpwrd.2010.2089473
- Seon-Hwan Hwang, and Jang-Mok Kim, (2010) Dead Time Compensation Method for Voltage-Fed PWM Inverter. IEEE Transactions on Energy Conversion , 25, 1-10. https://doi.org/10.1109/tec.2009.2031811
- Houssamo, I., Locment, F. and Sechilariu, M. (2013) Experimental Analysis of Impact of MPPT Methods on Energy Efficiency for Photovoltaic Power Systems. International Journal of Electrical Power & Energy Systems , 46, 98-107. https://doi.org/10.1016/j.ijepes.2012.10.048
- Rodriguez, J., Lai, J.S. and Peng, F.Z. (2002) Multilevel Inverters: A Survey of Topologies, Controls, and Applications. IEEE Transactions on Industrial Electronics , 49, 724-738. https://doi.org/10.1109/tie.2002.801052
- Colak, I., Kabalci, E. and Bayindir, R. (2011) Review of Multilevel Voltage Source Inverter Topologies and Control Schemes. Energy Conversion and Management , 52, 1114-1128. https://doi.org/10.1016/j.enconman.2010.09.006
- Wu, F.J., Zhao, K. and Sun, L. (2012) Simplified Multilevel Space Vector Pulse-Width Modulation Scheme Based on Two-Level Space Vector Pulse-Width Modulation. IET Power Electronics , 5, 609-616. https://doi.org/10.1049/iet-pel.2011.0176
- Mathew, K., Mathew, J., Azeez, N.A., Dey, A., Umanand, L. and Gopakumar, K. (2012) Multilevel Dodecagonal Space-Vector Generation for Induction Motor Drives by Cascading Three-Level and Two-Level Inverters. IET Power Electronics , 5, 1324-1332. https://doi.org/10.1049/iet-pel.2012.0095
- Selvaraj, J. and Rahim, N.A. (2009) Multilevel Inverter for Grid-Connected PV System Employing Digital PI Controller. IEEE Transactions on Industrial Electronics , 56, 149-158. https://doi.org/10.1109/tie.2008.928116