Performance Analysis and control strategies of Cascaded Multilevel Converters

Authors(2) :-Polu Veera Pratap, S. Sridhar

Multilevel inverters have been widely used for high-voltage and high-power applications. Their perf0rmance is greatly superi0r t0 that 0f c0nventi0nal tw0-level inverters due t0 their reduced t0tal harm0nic dist0rti0n (THD),. This t0p0l0gy requires fewer c0mp0nents when c0mpared t0 di0de clamped, flying capacit0r and Bridgeless cascaded inverters and it requires fewer carrier signals and gate drives. Theref0re, the 0verall c0st and circuit c0mplexity are greatly reduced. This paper presents a n0vel reference and multicarrier based PWM scheme It als0 c0mpares the perf0rmance 0f the pr0p0sed scheme with that 0f c0nventi0nal cascaded bridge less rectifier (CBR) multilevel inverters. finally Simulati0n results fr0m MATLAB/SIMULINK are presented t0 verify the perf0rmance 0f the Five-level Multilevel Inverter

Authors and Affiliations

Polu Veera Pratap
Department of Electrical and Electronics Engineering, Jntua College of Engineering, Anantapur, Andhra Pradesh, India
S. Sridhar
Assistant Professor, Department of Electrical and Electronics Engineering, Jntua college of Engineering, Andhra Pradesh, India

Bridgeless PFC rectifier, cascaded H-bridge converter, current distortion, power factor correction, topology configuration. Modulation Index (MI).

  1. Z. Li, P. Wang, H. Zhu, Z. Chu, and Y. Li, “An impr0ved pulse width m0dulati0n meth0d f0r ch0pper-cell-based m0dular multilevel c0nverters,” IEEE Trans. P0wer Electr0n., v0l. 27, n0. 8, pp. 3472-3481, Aug. 2012. 2S. M. Park and S.-Y. Park, “Versatile c0ntr0l 0f unidirecti0nal AC-DC b00st converters for power quality mitigation,” IEEE Trans. Power Electron., vol. 30, no. 9, pp. 4738-4749, Sep. 2015.
  2. H. Iman-Eini, S. Farhangi, M. Khakbazan-Fard, and J.-L. Schanen, “Analysis and control of a modular MV-to-LV rectifier based on a cascaded multilevel converter,” J. Power Electron., vol. 9, no. 2, pp. 133-145, Mar. 2009.
  3. R. Nagarajan and M. Saravanan, “Performance analysis of a novel reduced switch cascaded multilevel inverter,” J. Power Electron., vol. 14, no. 1, pp. 48-60, Jan. 2014.
  4. J. Venkat, A. Shukla, and S. V. Kulkarni, “Operation of a three phase solid state-Transformer under unbalanced load conditions,” in Proc. IEEE Int. Conf. Power Electron., Drives Energy Syst. (PEDES), Dec. 2014, pp. 1-6.
  5. J. Shi, W. Gou, H. Yuan, T. Zhao, and A. Q. Huang, “Research on voltage and power balance control for cascaded modular solidstate transformer,” IEEE Trans. Power Electron., vol. 26, no. 4, pp. 1154-1166, Apr. 2011. 7Z. Ji, J. Zhao, Y. Sun, X. Yao, and Z. Zhu, “DC voltage balancing control for cascaded grid-connected inverters by injecting zero-sequence and negative-sequence voltages,” in Proc. CSEE, Sep. 2013, vol. 33. no. 21, pp. 9-17. 8G. Zhang, “Research on cascaded H-bridge rectifier stage and balance control for DC-link capacitor voltages,” Ph.D. dissertation, School Mech. Electron. Inf. Eng., China Univ. Mining Technol., Beijing, China, 2012.
  6. H. Akagi and S. Inoue, “Medium-voltage power conversion systems in the next generation,” in Proc. IEEE Power Electron. Motion Control Conf. (IPEMC), Aug. 2006, pp. 1-8.
  7. J. Wang, “Research on cooperative control of cascaded H-bridge multilevel converter,” Ph.D. dissertation ,School Mech. Electron. Inf. Eng., China Univ. Mining Technol., Beijing, China, 2015.
  8. P. Samuel, R. Gupta, and D. Chandra, “Grid interface of wind power with large split-winding alternator using cascaded multilevel inverter,” IEEE Trans. Energy Convers., vol. 26, no. 1, pp. 299-309, Mar. 2011.
  9. F. Musavi, M. Edington, W. Eberle, and W. G. Dunford, “Evaluation and efficiency comparison of front end AC-DC plug-in hybrid charger topologies,” IEEE Trans. Smart Grid, vol. 3, no. 1, pp. 413-421, Mar. 2012.
  10. Y. Jiao, F. C. Lee, and S. Lu, “Space vector modulation for three-level NPC converter with neutral point voltage balance and switching loss reduction,” IEEE Trans. Power Electron., vol. 29, no. 10, pp. 5579-5591, Oct. 2014.
  11. H. Zhang and S. Zhu, “Drive circuit of three-level IGBT module based on 2SC0108T chip,” High Power Converter Technol., vol. 2, pp. 5-9, Mar./Apr. 2014.
  12. M. C. Kisacikoglu, B. Ozpineci, and L. M. Tolbert, “EV/PHEV bidirectional charger assessment for V2G reactive power operation,” IEEE Trans. Power Electron., vol. 28, no. 12, pp. 5717-5727, Dec. 2013.
  13. K.-W. Hu and C.-M. Liaw, “On a bidirectional adapter with G2B charging and B2X emergency discharging functions,” IEEE Trans. Ind. Electron., vol. 61, no. 1, pp. 243-257, Jan. 2014.
  14. M. Yilmaz and P. T. Krein, “Review of battery charger topologies, charging power levels, and infrastructure for plug-in electric and hybrid vehicles,” IEEE Trans. Power Electron., vol. 28, no. 5, pp. 2151-2169, May 2013. 18D. Rothmund, G. Ortiz, and J. W. Kolar, “SiC-based unidirectional solidstate transformer concepts for directly interfacing 400V DC to mediumvoltage AC distribution systems,” in Proc. IEEE 36th Int. Telecommun. Energy Conf. (INTELEC), Sep./Oct. 2014, pp. 1-9.

Publication Details

Published in : Volume 6 | Issue 1 | January-February 2019
Date of Publication : 2019-01-30
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 327-336
Manuscript Number : IJSRST1845506
Publisher : Technoscience Academy

Print ISSN : 2395-6011, Online ISSN : 2395-602X

Cite This Article :

Polu Veera Pratap, S. Sridhar, " Performance Analysis and control strategies of Cascaded Multilevel Converters", International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 6, Issue 1, pp.327-336, January-February-2019. Available at doi :
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