Enhancement Of HBridge Multilevel Inverter Designed With The Avoidance Of Capacitor Voltage Balancing Problem Using Fpga
[Full Text]
AUTHOR(S)
G. S. Arunkumar, Kiruthiga. S, N. Sanjeev
KEYWORDS
Keywords: Field Programmable Gate, Array(FPGA),Direct Current(DC),Very High Speed Description Language(VHDL).
ABSTRACT
ABSTRACT: A single phase multilevel inverter for dcto ac conversion is developed with minimum number of power electronic devices and isolated DC sources with implementation using FPGA. The total harmonics of the output waveform is reduced by increasing the switching modes with reduced devices. The HBridge multilevel inverter has two inverters connected in cascade. The proposed inverter can output more numbers of voltage levels in the same number of switching devices by using this conversion. The number of gate driving circuits is reduced, which leads to the reduction of the size and power consumption in the driving circuits. The total harmonic of the output waveform is also reduced. The proposed inverter is driven by the hybrid modulation method.The hybrid modulation algorithm is simulated using MATLAB/Simulink. The VHDL code for each of this topology was written and synthesized using Xilinx ISE software. Behavioral Simulation was performed on the architecture and after verifying the results this VHDL code was downloaded to SPARTAN 3A DSP board.
REFERENCES
[1] Z.Bai, Z.Zhang, and Y.Zhang, “A generalized threephase multilevel current source inverter with carrier phaseshifted SPWM,” in Proc. IEEEPESC, Jun. 17–21, 2007, pp. 2055–2060
[2] D.N.Zmood and D.G.Holmes, “A generalised approach to the modulation of current source inverters,” in Proc. 29th IEEE PESC, May 17–22, 1998, vol. 1, pp. 739–745.
[3] Z.Bai, Z.Zhang, and G.Chen, “Development of a threephase high power factor multilevel currentsource rectifier,” in Proc. IEEE PESC,Jun. 15–19, 2008, pp. 574–578.
[4] N.Vazquez, H.Lopez, C.Hernandez, E. Vazquez, R.Osorio, and J.Arau, “A different multilevel currentsource inverter,” IEEE Trans. Ind.Electron., vol. 57, no. 8, pp. 2623–2632, Aug. 2010.
[5] B.P.McGrath and D.G.Holmes, “Multicarrier PWM strategies for multilevel inverters,” IEEE Trans. Ind. Electron., vol. 49, no. 4, pp. 858–867, Aug. 2002.
[6] J.Espinoza and G.Joos, “Online generation of gating signals for current source converter topologies,” in Proc. IEEE ISIE, Budapest, Hungary,1993, pp. 674–678.
[7] Tolbert, Leon M., and Fang Z.Peng. “Multilevel converters as a utility interface for renewable energy systems.” In Power Engineering Society Summer Meeting, 2000. IEEE, vol. 2, pp. 12711274. IEEE, 2000
[8] Ghoreishy,H.Varjani,A.Y.,Farhangi, S., Mohamadian, M.: ‘Hybrid cascaded Hbridge inverter with even power distribution and improved total harmonic distortion: analysis and experimental validation’, IET Power Electron., 2012, 5, (8), pp. 1245–1253
[9] Boora, A.A., Nami, A., Zare, F., Ghosh,A.,Blaabjerg,F.:‘Ahybrid cascaded converter topology with seriesconnected symmetrical and asymmetrical diode clamped H bridge cells’, IEEE Trans. Power Electron., 2011, 26, (1), pp. 51–65
