IJMTES – HARMONIC REDUCTION METHOD USING MULTILEVEL INVERTER

Journal Title : International Journal of Modern Trends in Engineering and Science

Paper Title : HARMONIC REDUCTION METHOD USING MULTILEVEL INVERTER 

Author’s Name : M Jaspin Selvi  unnamed

Volume 03 Issue 10 2016

ISSN no:  2348-3121

Page no: 24-28

Abstract – It becomes complex to connect the power semiconductor switches directly to medium and high level voltages. Hence to overcome complexities multilevel inverters came into picture and it has gained more attention in market for various applications like renewable energy systems, industrial motor drives, and etc.Multilevel Inverters produce output voltages with good quality and contains less harmonic distortion. In this paper, the single phase seven  level cascaded H-bridge inverter is modelled in MATLAB/SIMULINK. Here, alternative phase opposition disposition techniques are used to trigger the switching device used in CHMLI. The Total Harmonic Distortion (THD) is observed and reduced by varying the modulation index and frequency modulation of SPWM. The result is compared with existing harmonic cancellation method. The validity of proposed method and achievement of desired compensation are confirmed by the results of simulation in MATLAB/simulink.  

Keywords— Multilevel Inverter, Harmonic Injection, Topology, Modulation

Reference

  1. Multi-level cascaded DC/DC converters for PVapplicationsAhmed A.A. Hafez Electrical Engineering Department, College of Engineering, Shaqra University, Saudi Arabia Electrical Engineering Department, Faculty of Engineering, Assiut University, Assiut, EgyptReceived 14 March 2015; revised 16 August 2015; accepted 1 September 2015Available online 6 October 2015
  2. M. S. A. Dahidah and V. G. Agelidis, “Selective harmonic elimination PWM control for cascaded multilevel voltage source converters: A generalized formula,” IEEE Trans. Power Electron., vol. 23, no. 4, pp. 1620–1630, Jul. 2008
  3. Fang Zheng Peng, Jih-Sheng Lai, et al, “A Multilevel Voltage-Source Inverter with Separate D Sources for Static Var Generation,” IEEE Trans. on Industry Applications, vol. 32, no. 5, pp. 1130-1138, September/October 1996
  4. M. A. Boost and P. D. Ziogas, “State-of-art-carrier PWM techniques: A critical evaluation,” IEEE Trans. on Industry Applications, vol. 24, no. 2, pp. 271-280, Mar./Apr. 1998
  5. “Shuffled Frog-Leaping Algorithm for Control of Selective and Total Harmonic Distortion “ A. Darvishi, A. Alimardani, B. Vahidi*, S. H. Hosseinian Department of Electrical Engineering , Amirkabir University of Technology ,Tehran, Iran