Lower Order Harmonics Minimisation in CHB Inverter Using GA and Decomposition by WT
Authors: V. Joshi Manohar, P. Sujatha, K. S. R. Anjaneyulu
Abstract:
Nowadays Multilevel inverters are widely using in various applications. Modulation strategy at fundamental switching frequency like, SHEPWM is prominent technique to eliminate lower order of harmonics with less switching losses and better harmonic profile. The equations which are formed by SHE are highly nonlinear transcendental in nature, there may exist single, multiple or even no solutions for a particular MI. However, some loads such as electrical drives, it is required to operate in whole range of MI. In order to solve SHE equations for whole range of MI, intelligent techniques are well suited to solve equations so as to produce lest %THDV. Hence, this paper uses Continuous genetic algorithm for minimising harmonics. This paper also presents wavelet based analysis of harmonics. The developed algorithm is simulated and %THD from FFT analysis and Wavelet analysis are compared. MATLAB programming environment and SIMULINK models are used whenever necessary.
Keywords: Cascade H-Bridge Inverter (CHB), Continuous Genetic Algorithm (C-GA), Selective Harmonic Elimination Pulse Width Modulation (SHEPWM), Total Harmonic Distortion (%THDv), Wavelet Transform (WT).
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1058751
Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 2920References:
[1] Bin Wu "High-power converters and AC Drives," Wiley-IEEE Press 2006.
[2] Mariusz Malinowski, K. Gopa Kumar, Jose Rodriguez and Marcelo A.Perez, "A Survey on cascaded multilevel inverters", IEEE Transactions on Industrial Elecronics, vol,57,No. 7,July 2010.
[3] Jose Rodriguez, J.S. Lai and F.Z.Peng, "Multilevel inverters: A survey of Topologies, Controls and Applications", IEEE Trans.Ind.Electron., vol.49, no. 4, pp.724-738, August 2002.
[4] Marcelo A.Perez and Jose Rodriguez, "Predictive control algorithm technique for multilevel asymmetric cascaded H-Bridge inverters", IEEE Transactions on Industrial Elecronics, vol,55, No. 12, December,2008.
[5] D.G. Holmes and T.A. Lipo, "Pulse Width Modulation for Power Converters Principles and Practice," New York: IEEE, 2003.
[6] Jagdish Kumar, Biswarup Das and Pramod Agarwal, "Selective harmonic elimination technique for a multilevel inverter", Fifteenth National power Systems Conference (NPSC), IIT Bombay, December 2008.
[7] J.Sun and H.Grotstollen, "Solving Nonlinear equations for Selective harmonic eliminated PWM using predicted initial values," in Proc.Int.Conf.Industrial Electronics, Control, Instrumentation, Automation, 1992, pp. 259-264.
[8] J.Chiasson, L. Tolbert, K. McKenZie, and Z. Du, "Eliminating harmonics in a multi-level converter using resultant theory of symmetric polynomials and resultants," IEEE trans. Control Syst. Technol., Vol.13, No 2, pp. 216-223, Mar. 2005.
[9] K El-Naggar and T. H. Abdelhamid, "Selective harmonic elimination of new family of multi-level inverters using genetic algorithms," Energy Conversion and Management, Vol. 49, No. 1, pp.89-95, Jan. 2008.
[10] Samir Kouro, S. La Rocca, B. Cortes, P. Alepuz, S. Bin Wu Rodriguez, J. "Predictive control based selective harmonic elimination with low switching frequency for multilevel converters" Energy Conversion Congress and Exposition, 2009. ECCE 2009. IEEE, pp- 3130 - 3136.
[11] Li Li, Dariusz Czarkowski, Yaguang liu and Pragasen pillay, "Multilevel selective harmonic elimination PWM technique in series-connected voltage inverters," IEEE Transactions on Industry Applications, Vol.36, No. 1, January/February 2000.
[12] J. Wang, Y. Huang, and F. Z. Peng, "A practical harmonics elimination method for multilevel inverters," in Conf. Rec. IEEE IAS Annu. Meeting, Oct. 2005, vol. 3, pp. 1665-1670.
[13] L.Davis, The Handbook Of Genetic Algorithms, New York, 1991.
[14] L. Chambers. "Practical handbook of genetic algorithms" Boca Raton, CRC Press 1995.
[15] S.N.Sivanandam, & S.N.Deepa, "Principles of Soft Computing", Second edition page(s):385-401,2011.
[16] K.Deb, "Multi-Objecctive Optimisation using Evalutionary Algorithms"Wiley,2001.
[17] Reza Salehi, Naeem Faroknia, Mehrdad Abedi and Seyed Hamid Fathi, "Elimination of Low order harmonics in Multilevel inverter using Genetic Algorithm," Journal of Power Electronics, vol. 11,no. 2,pp. 132-139, Mar 2011.
[18] A.M.Gaoud and M.M.A.Salma et al, "Power Quality Detection and Classifiction Using Wavelet-Multiresolution Signal Deomposition," IEEE Transactions on Power Delivery, Vol.14, No. 4, Oct 1999, pp.1469-76.
[19] Stephane G.Mallat, "A Theory for Multiresolution Signal Decomposition: The Wavelet Representations," IEEE Transactions on Pattern Analysis and Machine intelligence. Vol.11, No. 7, July 1989, pp.193-202.