Three phase hybrid multilevel inverter control using vector transformation

Mekhilef, Saad (2011) Three phase hybrid multilevel inverter control using vector transformation. In: 2011 Canadian Conference on Electrical and Computer Engineering, CCECE 2011, Niagara Falls, ON.

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Abstract

This paper presents a multilevel multistage inverter design and its corresponding control strategy. The hybrid inverter has a high voltage stage composed of the six-switch conventional three phase inverter with its output connected in series with the outputs of three-level H-bridge medium and low voltage stages. The voltage ratio has been selected to enable both one state approximation and PWM control modes effectively. The suggested control strategy has been developed to ensure minimum switching losses focusing on holding the higher voltage stage state as long as it is feasible. The reference voltage vector has been approximated to the nearest of the 919 vectors provided by the 18-level inverter. A special definition of state zone has been introduced for the low voltage stage to enable the achievement of the reference vector with minimum error. The proposed control strategy has been tested and its short computational time and low memory requirement has been proven.

Item Type:	Conference or Workshop Item (Paper)
Funders:	UNSPECIFIED
Additional Information:	Conference code: 86889 Export Date: 16 November 2012 Source: Scopus Art. No.: 6030469 CODEN: CCCEF doi: 10.1109/CCECE.2011.6030469 Language of Original Document: English Correspondence Address: Mekhilef, S.; University of MalayaMalaysia; email: saad@um.edu.my References: Von Jouanne, A., Dai, S., Zhang, H., A multilevel inverter approach providing DC-link balancing, ride-through enhancement, and common-mode voltage elimination (2002) IEEE Trans. on Indsut. Elect, 49 (4), pp. 739-745. , AUG; Song-Manguelle, J., Ruffer, A., Asymmetrical multilevel inverter for large induction machine drives (2001) EDPE'01 Electrical Drives and Power Electronics International Conference, pp. 101-107. , Slovakia 3-5 October; Ruffer, A., Veenstra, M., Gopakumar, K., Asymmetrical multilevel converter for high resolution voltage phasor generation EPE 99; Song-Manguelle, J., Mariethoz, S., Rufer, A., A generalized design principle of a uniform step asymmetrical multilevel converter for high power conversion EPE-2001; Mariethoz, S., Rufer, A., Design and control of asymmetrical multilevel inverters (2002) IECON Industrial Electronics Society, pp. 840-45. , IEEE; Lai, Y.S., Shyu, F.S., Topology for hybrid multilevel inverter (2002) IEE Proc.-elect. Power Appl., 149 (6). , November; Liu, Y., Luo, F.L., Trinary hybrid 81-level multilevel inverter for motor drive with zero common-mode voltage (2008) Industrial Electronics, 55 (3), pp. 1014-21. , IEEE Transaction on March; Abdul Kadir, M., Mekhilef, S., Ping, H.W., Direct torque control of permanent magnet synchronous motor drive with asymmetrical multilevel inverter supply (2007) ICPE07, pp. 1196-1201. , Korea, October; Mariethoz, S., Rufer, A., An overview of the technique of asymmetrical multilevel inverters (2005) ANAE: Associazione Nazionale Azionamenti Elettrici, 16o Seminario Interattivo, Azionamenti Elettrici: Evoluzione Tecnologica e Problematiche Emergenti, , Bressanone, Italy; McGrath, B.P., Holmes, D.G., Lipo, T., Optimized space vector switching sequence for multilevel inverters (2003) Power Electronics, 18 (6), pp. 293-301. , IEEE Transactions on Nov Sponsors: London Hydro; Agilent Technologies; Auto21; Gap Wireless; IEEE Canadian Foundation
Uncontrolled Keywords:	Converters, DSP control, multilevel inverters, pulse width modulation, Computational time, Control strategies, H-bridges, High voltage, Higher voltage stage, Hybrid inverters, Hybrid multilevel inverter, Low memory, Low voltages, Multilevel inverter, Multilevel multistage inverter, Pulse width, PWM control, Reference vectors, Reference voltages, Switching loss, Three phase, Three-level, Three-phase inverter, Vector transformation, Voltage ratios, Vectors, Electric inverters.
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	13 Feb 2013 01:24
Last Modified:	25 Oct 2019 03:58
URI:	http://eprints.um.edu.my/id/eprint/4773

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