A METHOD OF REDUCING SWITCHING LOSSES IN THREE-LEVEL NPC INVERTER

Open access

Abstract

The aim of the paper is to present a concept of implementation of a space vector modulation (SVM) algorithm, which is used to create alternating current waveforms of changing amplitude and frequency in power inverters. The main goal of the method is to decrease the number of state changes in power transistors. It is realized by utilizing a prediction algorithm and sequences of transistors, which are not common in use. The method requires measurement of inverter output current flow. The prediction algorithm analyzes possible sequences of transistors’ states and choose those which offers smaller switch count. A decrease of about 20% was obtained for the cases tested. This paper presents simulation result for selected driving scenario. The described method decreases the number of state changes in power transistors and therefore it is a potentially good method to considerably decrease energy losses of multilevel inverter-powered drive.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1] NABAE A. TAKAHASHI I. HIROFUMI A. A New Neutral-Point-Clamped PWM Inverter IEEE Transactions on Industry Applications September/October 1981 IA-17 5.

  • [2] RODRÍGUEZ J. LAI J.S. PENG F.Z.: Multilevel Inverters: A Survey of Topologies Controls and Applications IEEE Transactions on Industry Electronics August 2002 49 4.

  • [3] KOURO S. MALINOWSKI M. GOPAKUMAR K. POU J. FRANQUELO L.G. WU B. RODRÍGUEZ J. PÉREZ M.A. LEON J.I. Recent Advances and Industrial Applications of Multilevel Converters IEEE Transactions on Industry Electronics August 2010 57 8.

  • [4] ORFANOUDAKIS G.I. SHARKH S.M. YURATICH M.A. ABUSARA M.A. Loss Comparison of Two and Three-level Inverter Topologies 5th IET International Conference on Systems Power Electronics Machines and Drives (PEMD) 2010.

  • [5] LAI J.S. PENG F.Z. Multilevel Converters - A New Breed of Power Converters IEEE Transactions on Industry Applications May/Jun 1996 32 3.

  • [6] VAN DER BROECK H.W. SKUDELNY H.-C. STANKE G.V. Analysis and Realization of a Pulsewidth Modulator Based on Voltage - Space Vectors IEEE Trans. on Industry Applications January/February 1988 24 1 142-150.

  • [7] GOUTHAM KUMAR REDDY G. SRIDHAR S. Three Level Modified SVPWM Inverter Fed DTC Induction Motor Drive International Research Journal of Engineering and Technology (IRJET) Sep. 2015 2 6.

  • [8] DE PABLO S. REY A.B. HERRERO L.C. RUIZ J.M. A simpler and faster method for SVM implementation European Conference on Power Electronics and Applications 2007.

  • [9] URMILA B. SUBBA RAYUDU D. Optimum Space Vector PWM Algorithm for Three-level Inverter ARPN Journal of Engineering and Applied Sciences September 2011 6 9.

  • [10] ZYGMANOWSKI M. GRZESIK B. Space Vector Modulation for 3-level neutral-point clamped inverter using DSP TMS 320F2812 Zeszyty Naukowe. Elektryka Politechnika Śląska 2006 198 155-166 (in Polish).

  • [11] SOBAŃSKI P. ORŁOWSKA-KOWALSKA T. Analysis of Space Vector Modulation Technique in Inverter-Fed Fault-Tolerant Induction Motor Drive 16th International Power Electronics and Motion Control Conference and Exposition Antalya Turkey 21-24 Sept. 2014.

  • [12] SALEM A. AHMED E.M. AHMED M. ORABI M. ABDELGHANI A.B. Reduced Switches Based Three-Phase Multi-Level Inverter for Grid Integration 6th International Renewable Energy Congress (IREC) 2015.

  • [13] KOŁOMYJSKI W. MALINOWSKI M. KAŹMIERKOWSKI M.P. Adaptive Space Vector Modulator for Three-Level NPC PWM Inverter-Fed Induction Motor 9th IEEE International Workshop on Advanced Motion Control 2006.

  • [14] PATRZEK P. Control of Multilevel NPC Inverter with consideration of minimization of converter part losses Master thesis Opole University of Technology 2012 (in Polish).

  • [15] OBALEK K. Control of Multilevel NPC Inverter with consideration of optimizing equations Master thesis Opole University of Technology 2012 (in Polish).

Search
Journal information
Metrics
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 127 47 2
PDF Downloads 178 122 3