Multilevel Three Phase Voltage Source Inverter With Simple Space Vector Pulse Width Modulation

Multilevel inverter has brought a great revolution in many industrial applications. The performances of multilevel inverter depend on the suitable modulation technique and topology. There a number of modulation techniques and topologies are already developed during last three decades. The most popul...

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Main Author:	Hossain, Md Liton
Format:	Thesis
Language:	English English
Published:	2016
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/20614/1/Multilevel%20Three%20Phase%20Voltage%20Source%20Inverter%20With%20Simple%20Space%20Vector%20Pulse%20Width%20Modulation.pdf http://eprints.utem.edu.my/id/eprint/20614/2/Multilevel%20Three%20Phase%20Voltage%20Source%20Inverter%20With%20Simple%20Space%20Vector%20Pulse%20Width%20Modulation.pdf
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institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Ibrahim, Zulkifilie
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Hossain, Md Liton Multilevel Three Phase Voltage Source Inverter With Simple Space Vector Pulse Width Modulation
description	Multilevel inverter has brought a great revolution in many industrial applications. The performances of multilevel inverter depend on the suitable modulation technique and topology. There a number of modulation techniques and topologies are already developed during last three decades. The most popular multilevel inverter topology is cascaded h-bridge inverter due to not having any clamping diode or capacitor and better performances. But it requires several number of separated DC sources that increase complexity as well as system cost. Three phase cascaded multilevel inverters with reduced number of DC voltage sources are proposed in this research that requires only 2, 3, 4, 5 and 6 separated DC sources for three phase 3, 4, 5, 6 and 7-level. Three phase cascaded multilevel inverters with single DC voltage source are also proposed in this research. On the other hand, the most popular modulation technique is space vector pulse width modulation (SVPWM) because of their easier digital realization, over modulation, high switching frequency, better DC bus utilization and lower THD. The complexity of switching control algorithms for multilevel inverter is increasing with the number of level due to increasing the number of switching states in space vector diagram. This research simplifies the space vector diagram that reduces the switching states to 26 from 27, 56 from 64, 98 from 125, 152 from 216 and 218 from 343 for 3, 4, 5, 6 and 7-level SVPWM respectively. The simplified strategy used in the research, the lower weighted digit values of switching states are omitted because performance of the multilevel inverter depends on the more weighted digit value of switching states. However it still has a constraint of having different number of switching states for different sub switching triangle of each sector. Therefore, the best four different active switching states will be selected for each switching triangle that makes the overall PWM algorithm simpler. The proposed three phase cascaded multilevel inverters (CMLI) based on simple space vector pulse width modulation have been modeled, simulated and evaluated using MATLAB/SIMULINK. Simulation results based on the proposed technique demonstrated the significant improvement in terms of output voltage and THD. The inverters of each level have been implemented using a single eZdsp control board embedded with TMS320F2812 processor. The results obtained from the experimental investigation for 3, 4, 5, 6 and 7 level inverter are consistent with the results obtained from the simulation. The three phase 7-level CMLI demonstrated 10.69% THD that is closest the IEE519 standard of 10% THD.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Hossain, Md Liton
author_facet	Hossain, Md Liton
author_sort	Hossain, Md Liton
title	Multilevel Three Phase Voltage Source Inverter With Simple Space Vector Pulse Width Modulation
title_short	Multilevel Three Phase Voltage Source Inverter With Simple Space Vector Pulse Width Modulation
title_full	Multilevel Three Phase Voltage Source Inverter With Simple Space Vector Pulse Width Modulation
title_fullStr	Multilevel Three Phase Voltage Source Inverter With Simple Space Vector Pulse Width Modulation
title_full_unstemmed	Multilevel Three Phase Voltage Source Inverter With Simple Space Vector Pulse Width Modulation
title_sort	multilevel three phase voltage source inverter with simple space vector pulse width modulation
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty Of Electrical Engineering
publishDate	2016
url	http://eprints.utem.edu.my/id/eprint/20614/1/Multilevel%20Three%20Phase%20Voltage%20Source%20Inverter%20With%20Simple%20Space%20Vector%20Pulse%20Width%20Modulation.pdf http://eprints.utem.edu.my/id/eprint/20614/2/Multilevel%20Three%20Phase%20Voltage%20Source%20Inverter%20With%20Simple%20Space%20Vector%20Pulse%20Width%20Modulation.pdf
_version_	1747833986411921408
spelling	my-utem-ep.206142021-10-10T22:51:36Z Multilevel Three Phase Voltage Source Inverter With Simple Space Vector Pulse Width Modulation 2016 Hossain, Md Liton T Technology (General) TK Electrical engineering. Electronics Nuclear engineering Multilevel inverter has brought a great revolution in many industrial applications. The performances of multilevel inverter depend on the suitable modulation technique and topology. There a number of modulation techniques and topologies are already developed during last three decades. The most popular multilevel inverter topology is cascaded h-bridge inverter due to not having any clamping diode or capacitor and better performances. But it requires several number of separated DC sources that increase complexity as well as system cost. Three phase cascaded multilevel inverters with reduced number of DC voltage sources are proposed in this research that requires only 2, 3, 4, 5 and 6 separated DC sources for three phase 3, 4, 5, 6 and 7-level. Three phase cascaded multilevel inverters with single DC voltage source are also proposed in this research. On the other hand, the most popular modulation technique is space vector pulse width modulation (SVPWM) because of their easier digital realization, over modulation, high switching frequency, better DC bus utilization and lower THD. The complexity of switching control algorithms for multilevel inverter is increasing with the number of level due to increasing the number of switching states in space vector diagram. This research simplifies the space vector diagram that reduces the switching states to 26 from 27, 56 from 64, 98 from 125, 152 from 216 and 218 from 343 for 3, 4, 5, 6 and 7-level SVPWM respectively. The simplified strategy used in the research, the lower weighted digit values of switching states are omitted because performance of the multilevel inverter depends on the more weighted digit value of switching states. However it still has a constraint of having different number of switching states for different sub switching triangle of each sector. Therefore, the best four different active switching states will be selected for each switching triangle that makes the overall PWM algorithm simpler. The proposed three phase cascaded multilevel inverters (CMLI) based on simple space vector pulse width modulation have been modeled, simulated and evaluated using MATLAB/SIMULINK. Simulation results based on the proposed technique demonstrated the significant improvement in terms of output voltage and THD. The inverters of each level have been implemented using a single eZdsp control board embedded with TMS320F2812 processor. The results obtained from the experimental investigation for 3, 4, 5, 6 and 7 level inverter are consistent with the results obtained from the simulation. The three phase 7-level CMLI demonstrated 10.69% THD that is closest the IEE519 standard of 10% THD. 2016 Thesis http://eprints.utem.edu.my/id/eprint/20614/ http://eprints.utem.edu.my/id/eprint/20614/1/Multilevel%20Three%20Phase%20Voltage%20Source%20Inverter%20With%20Simple%20Space%20Vector%20Pulse%20Width%20Modulation.pdf text en public http://eprints.utem.edu.my/id/eprint/20614/2/Multilevel%20Three%20Phase%20Voltage%20Source%20Inverter%20With%20Simple%20Space%20Vector%20Pulse%20Width%20Modulation.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=105976 mphil masters Universiti Teknikal Malaysia Melaka Faculty Of Electrical Engineering Ibrahim, Zulkifilie 1.Abolhosseini, S., Heshmati, A. & Altmann, J., 2014. A Review of Renewable Energy Supply and Energy Efficiency Technologies. The Institute for the Study of Labor, Discussion Paper No. 8145, pp.1–30. 2.Ajami, A. Mohammad Reza Jannati Oskuee, Ataollah Mokhberdoran, Alex Van den Bossche, 2014. 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Multilevel Three Phase Voltage Source Inverter With Simple Space Vector Pulse Width Modulation

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