Adapted Modulation For Thd Performance Improvement And Losses Reduction On Multilevel Inverters

G.A.L. Henn; P.P. Praça; R.N.A.L. Silva; D.S. Oliveira Jr.; L.H.S.C. Barreto; E.R.C. da Silva

doi:10.18618/REP.2011.2.103109

Authors

G.A.L. Henn Universidade Federal Rural do Semi-Árido
P.P. Praça Universidade Federal do Ceará, Departamento de Engenharia Elétrica, Fortaleza – CE, Brasil, 60455-760
R.N.A.L. Silva Universidade Federal do Ceará, Departamento de Engenharia Elétrica, Fortaleza – CE, Brasil, 60455-760
D.S. Oliveira Jr. Universidade Federal do Ceará, Departamento de Engenharia Elétrica, Fortaleza – CE, Brasil, 60455-760
L.H.S.C. Barreto Universidade Federal do Ceará, Departamento de Engenharia Elétrica, Fortaleza – CE, Brasil, 60455-760
E.R.C. da Silva Universidade Federal de Campina Grande

DOI:

https://doi.org/10.18618/REP.2011.2.103109

Keywords:

Losses Reduction, Multilevel Inverters, PWM Modulation, THD Performance

Abstract

This paper presents an adapted carrier-based PWM modulation technique to be applied on both Neutral Point-Clamped (NPC) and Flying Capacitor (FC) structures of multilevel inverters. The proposed modulation leads to an improved performance on the output voltage THD. It also reduces the total loss dissipation across the semiconductors devices compared to other conventional carrier-based PWM modulation techniques, such as Phase-Shifted PWM (PSPWM) and Level-Shifted PWM (LSPWM). In order to demonstrate the effectiveness of the proposed technique, it was developed a three-phase, three- level, 6kW prototype for both NPC and FC topologies.

Downloads

Download data is not yet available.

Author Biographies

G.A.L. Henn, Universidade Federal Rural do Semi-Árido

was born in Fortaleza-CE, Brazil, in 1983. He received the BSc and MSc degrees in electrical engineering from Federal University of Ceará, Brazil, in 2006 and 2008, respectively. Currently is PhD candidate on power electronics in Federal University of Ceará, researcher in the Group of Power Processing and Control, and professor on the Rural Federal University of the Semi-Arid, Mossoró/RN. His interest areas include static power converters, renewable energy applications, and multilevel inverters.

P.P. Praça, Universidade Federal do Ceará, Departamento de Engenharia Elétrica, Fortaleza – CE, Brasil, 60455-760

was born in Fortaleza, Ceará, Brazil, in 1979. He received the BSc degree in electronic engineering from University of Fortaleza, Brazil, in 2003, and MSc degree in power electronics from Federal University of Ceará, Brazil, in 2006. Currently is PhD candidate on power electronics in Federal University of Ceará, researcher in the Group of Power Processing and Control, and assistant professor since 2008 on the same institution. His interest areas include static power converters, soft commutation, UPS applications, industrial automations, and renewable energy applications.

R.N.A.L. Silva, Universidade Federal do Ceará, Departamento de Engenharia Elétrica, Fortaleza – CE, Brasil, 60455-760

was born in Fortaleza, Ceará, Brazil, in 1982. She received the BSc degree in electronic engineering from University of Fortaleza, Brazil, in 2006 and MSc degree in power electronics from Federal University of Ceará, Brazil, in 2009. Currently, she is PhD candidate on electrical engineering in Federal University of Ceará and researcher in the Group of Power Processing and Control. Her interest areas include static power converters, renewable energy applications, and multilevel inverters.

D.S. Oliveira Jr., Universidade Federal do Ceará, Departamento de Engenharia Elétrica, Fortaleza – CE, Brasil, 60455-760

was born in Santos, São Paulo, Brazil, in 1974. He received the BSc and MSc degrees in electrical engineering from the Federal University of Uberlândia, Brazil, in 1999 and 2001, respectively, and the PhD degree from the Federal University of Santa Catarina, Brazil, in 2004. Currently, he is a researcher in the Group of Power Processing and Control and professor since 2004 on Federal University of Ceará. His interest areas include static power converters, soft commutation and renewable energy applications.

L.H.S.C. Barreto, Universidade Federal do Ceará, Departamento de Engenharia Elétrica, Fortaleza – CE, Brasil, 60455-760

was born in Navirai-MS, Brazil, in 1974. He received the BSc degree from the Federal University of Mato Grosso, Cuiabá-MT, Brazil, in 1997, the MSc (1999) and the PhD degree (2003) from the Federal University of Uberlândia, Uberlândia-MG. Since 2003 he is a professor of electrical engineering in the Federal University of Ceará, Fortaleza - CE, Brazil. His current research work is in the area of power electronics and renewable energy.

E.R.C. da Silva, Universidade Federal de Campina Grande

was born in Pelotas, Brazil, in, 1942. He received the B.C.E.E. degree from the Polytechnic School of Pernambuco, Brazil, in 1965, the M.S.E.E. degree from the University of Rio de Janeiro, Brazil, in 1968, and the D.Eng. degree from the University Paul Sabatier, France, in 1972. From 1967 to 2002, he joined the staff of the Electrical Engineering Department, Federal University of Paraiba, Brazil. Since 2002 he is a professor of electrical engineering in the Federal University of Campina Grande, Brazil. In 1990, he was with COPPE, Federal University of Rio de Janeiro, and from 1990 to 1991, as Visiting Professor in the University of Wisconsin, USA. His current research work is in the area of power electronics and motor drives.

References

L.G. Franquelo, J. Rodriguez, J.I. Leon, S. Kouro, R. Portillo,M.A.M. Prats, “The Age of Multilevel Converters Arrives”, IEEE Industrial Electronics Magazine, vol. 2, no. 2, pp. 28-39, Jun. 2008. https://doi.org/10.1109/MIE.2008.923519 DOI: https://doi.org/10.1109/MIE.2008.923519

W.K. Lee,S.Y. Kim, J.S. Yoon, D.H.Baek, “A comparison of the carrier-based PWM techniques for voltage balance of flying capacitor in the flying capacitor multilevel inverter”, Applied Power Electronics Conference and Exposition, 2006, vol. 1, Mar 2006. https://doi.org/10.1109/APEC.2006.1620763 DOI: https://doi.org/10.1109/APEC.2006.1620763

A. Nabae, I. Takahashi, H. Akagi, “A neutral-point clamped PWM inverter”, IEEE Transactions on Industry Applications, vol. 1A-17, no. 5, pp. 518-523, Set. 1981. https://doi.org/10.1109/TIA.1981.4503992 DOI: https://doi.org/10.1109/TIA.1981.4503992

J.-S. Lai, F.Z. Peng, “Multilevel converters - a new breed of power converters”, IEEE Transactions on Industry Applications, vol. 32, no. 3, pp. 509-517. https://doi.org/10.1109/28.502161 DOI: https://doi.org/10.1109/28.502161

T. A. Meynard, H. Foch, “Multi-level conversion: high voltage choppers and voltage-source inverters”, 23rd IEEE Power Electronics Specialists Conference, PESC’92, vol. 1, pp. 397-403, Jul. 1992. https://doi.org/10.1109/PESC.1992.254717 DOI: https://doi.org/10.1109/PESC.1992.254717

M.F. Escalante, J.-C. Vannier, A. Arzande, “Flying capacitor multilevel inverters and DTC motor drive applications”, IEEE Transactions on Industrial Electronics, vol. 49, no. 4, pp. 809-815, Ago. 2002. https://doi.org/10.1109/TIE.2002.801231 DOI: https://doi.org/10.1109/TIE.2002.801231

S. G. Lee, D. W. Kang, Y. H. Lee, D. S. Hyun, “The carrier-based PWM method for voltage balancing of flying capacitor multilevel inverter”, 32nd IEEE Power Electronics Specialists Conference, vol. 1, pp. 126-131. https://doi.org/10.1109/PESC.2001.954006 DOI: https://doi.org/10.1109/PESC.2001.954006

B.P. McGrath, D.G. Holmes, “Multicarrier PWM strategies for multilevel inverters”, IEEE Transactions on Industrial Electronics, vol. 49, no. 4, pp. 858-867, Ago. 2002. https://doi.org/10.1109/TIE.2002.801073 DOI: https://doi.org/10.1109/TIE.2002.801073

Y. Liang, C.O. Nwankpa, “A power-line conditioner based on flying capacitor multilevel voltage-source converter with phase-shift SPWM”, IEEE Transactions on Industry Applications, vol. 36, no. 4, pp. 965-971, Jul/Ago. 2000. https://doi.org/10.1109/28.855948 DOI: https://doi.org/10.1109/28.855948

G. Carrara, S. Gardella, M. Marchesoni, R. Salutari, G. Sciutto, “A new multilevel PWM method: A theoretical analysis”, IEEE Transactions on Power Electronics, vol. 7, no. 3, pp. 497-505, Jul. 1992. https://doi.org/10.1109/63.145137 DOI: https://doi.org/10.1109/63.145137

H. Wang, Y. Deng, X. He, “Novel carrier-based PWM method with voltage balance for flying capacitor multilevel converters”, 35th IEEE Power Electronics Specialists Conference, PESC’04, vol. 6, pp. 4423-4427, Jun. 2004. https://doi.org/10.1109/PESC.2004.1354782 DOI: https://doi.org/10.1109/PESC.2004.1354782

A.L. Batschauer, A.J. Perin, S.A. Mussa, M.L. Heldwein, “Evaluation of the hybrid four-level converter employing half-bridge modules for two different modulation schemes”, 25th IEEE Applied Power Electronics Conference, APEC’10, pp. 909-914, Fev. 2010. https://doi.org/10.1109/APEC.2010.5433394 DOI: https://doi.org/10.1109/APEC.2010.5433394

U. Drofenik, J.W. Kolar, “A general scheme for calculating switching- and conduction-losses of power semiconductors in numerical circuit simulations of power electronics systems”, International Power Electronics Conference, IPEC’05, CD-ROM, Abr. 2005. http://hdl.handle.net/20.500.11850/46622

F. Casanellas, “Losses in PWM inverters using IGBTs”, IEE Proceedings in Electric Power Applications, vol. 141, no. 5, pp. 235-239, Set. 2004. https://doi.org/ 10.1049/ip-epa:19941349 DOI: https://doi.org/10.1049/ip-epa:19941349

Jing Ning; Yuyao He; "Phase-Shifted Suboptimal Pulse-Width Modulation Strategy for Multilevel Inverter," Industrial Electronics and Applications, 2006 1ST IEEE Conference on , vol., no., pp.1-5, 24-26 May 2006. https://doi.org/10.1109/ICIEA.2006.257127 DOI: https://doi.org/10.1109/ICIEA.2006.257127

Yu Liu; Hoon Hong; Huang, A.Q.; , "Real-Time Algorithm for Minimizing THD in Multilevel Inverters With Unequal or Varying Voltage Steps Under Staircase Modulation," Industrial Electronics, IEEE Transactions on, vol.56, no.6, pp.2249-2258, Jun 2009. https://doi.org/10.1109/TIE.2009.2015360 DOI: https://doi.org/10.1109/TIE.2009.2015360

Yu Liu; Hoon Hong; Huang, A.Q.;, "Real-Time Calculation of Switching Angles Minimizing THD for Multilevel Inverters With Step Modulation," Industrial Electronics, IEEE Transactions on , vol.56, no.2, pp.285-293, Feb. 2009. https://doi.org/10.1109/TIE.2008.918461 DOI: https://doi.org/10.1109/TIE.2008.918461

R.N. Ra y, D. Chatterjee, S.K. Goswami, "Harmonics elimination in a multilevel inverter using the particle swarm optimisation technique," Power Electronics, IET, vol.2, no.6, pp.646-652, Nov. 2009. https://doi.org/10.1049/iet-pel.2008.0180 DOI: https://doi.org/10.1049/iet-pel.2008.0180