Fuzzy Logic Controller for Minimization of Harmonics in Multilevel Inverter

S.Sudha*, C. Santhakumar**
* KSR Institute for Engineering and Technology, Tiruchengode, Namakkal.
** Assistant Professor, KSR Institute for Engineering and Technology, Department of Electrical and Electronics Engineering, Tiruchengode, Namakkal.
Periodicity:May - July'2014
DOI : https://doi.org/10.26634/jes.3.2.3205

Abstract

A new approach for modulation of an 11-level cascade multilevel inverter using selective harmonic elimination is presented in this paper. The direct current sources feeding the multilevel inverter are considered to be varying in time, and the switching angles are adapted to the dc source variation. This method uses Newton Raphson method to obtain switching angles offline for different dc source values. Then, fuzzy logic controllers are used to determine the switching angles that correspond to the real time values of the dc sources for each phase. This implies that each one of the dc sources of this topology can have different values at anytime, but the output fundamental voltage will stay constant and the harmonic content will still meet the specifications. The modulating switching angles are updated at each cycle of the output fundamental voltage. This paper gives details on the method in addition to simulation and experimental results.

Keywords

Multilevel Inverter, Selective Harmonic Elimination, Switching Angle, fuzzy Logic Controller

How to Cite this Article?

Sudha.S., and Santhakumar.C. (2014). Fuzzy Logic Controller for Minimization of Harmonics in Multilevel Inverter.i-manager's journal on Embedded Systems, 3(2), 20-24. https://doi.org/10.26634/jes.3.2.3205

References

[1]. J-S. Lai and F.Z. Peng, (1996). “Multilevel converters – a new breed of powerconverters,” IEEE Trans. Ind. Appl., Vol. 32, No. 3, pp. 509-517.
[2]. K.C. Duffy and P.R. Stratford, (1989). “Update of harmonic standard IEEE-519: IEEE, recommended practices and requirements for harmoniccontrol in electric power systems,” IEEE Trans. Ind. Appl., Vol. 25, No. 6, pp. 1025-1034.
[3]. G. Carrara, S. Gardella, M. Marchesoni, R. Salutari, and G. Sciutto, (1989). “A new multilevel PWM method a theoretical analysis,” IEEE Trans.Power Electron., Vol. 7, No. 4, pp. 497-505.
[4]. H.S. Patel and R.G. Hotf, (1973). “Generalized techniques of harmonic elimination and voltage control in thyristor inverters: part I– Harmonicelimination,” IEEE Trans. Ind. Appl., Vol. 3, No. 3 pp. 310-317.
[5]. P.N. Enjeti, P.D. Ziogas, and J.S. Lindsay, (1990). “Programmed PWMtechniques to eliminate harmonics a critical evaluation,” IEEE Trans.Ind. Appl., Vol. 26; No. 2; pp. 302-16.
[6]. J.S. Chassan, L.M. Tolbert, K.J. Mckenze, and Z. Du, (2003). “Control of amultilevel converter using resultant theory,” IEEE Trans. Control Syst. Theory, Vol. 11, pp. 345- 54.
[7]. E.l. Naggar and K. Abdelhamid, (2008). “Selective harmonic elimination of anew family of multilevel inverters using genetic algorithms,” Elsevier Journal of Energy Conversion and Management, Vol. 49, No.1 pp 89-95.
[8]. R. Narayan, A. Rey, B. Swapan Kumar, and B. Goswami, (2010). “A PSObased optimal switching technique for voltage harmonic reduction ofmultilevel inverter,” Expert Systems with Applications, Vol. 37, pp.7796-7801.
[9]. W. Menzies, P. Steimer, and J.K. Steinke, (1994). “Fivelevel GTO invertersfor large induction motor drives,” IEEE Trans. Ind. Appl., Vol. 30, No.4, pp. 938-944.
[10]. A. Othman, and H.T. Abdelhamid, (2009). “Elimination of harmonics inmultilevel inverters with nonequal dc sources using PSO,” ElsevierJournal of Energy Conversion and Management, Vol. 50, pp. 756-76.
If you have access to this article please login to view the article or kindly login to purchase the article

Purchase Instant Access

Single Article

North Americas,UK,
Middle East,Europe
India Rest of world
USD EUR INR USD-ROW
Pdf 35 35 200 20
Online 35 35 200 15
Pdf & Online 35 35 400 25

Options for accessing this content:
  • If you would like institutional access to this content, please recommend the title to your librarian.
    Library Recommendation Form
  • If you already have i-manager's user account: Login above and proceed to purchase the article.
  • New Users: Please register, then proceed to purchase the article.