2016
DOI: 10.3906/elk-1307-85
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An 11-switch multilevel inverter with a modified space vector modulation

Abstract: This paper proposes a new 3-phase multilevel inverter that is able to generate 7 levels in line-to-line voltage with only 11 switches. The inverter is formed from the 6-switch conventional full-bridge topology with the addition of 5 bidirectional switches in which 2 of them are shared among the three phases. By doing so, the number of power switches can be minimized, thus reducing the complexity in generating and controlling PWM signals. A novel voltage control scheme based on space vector modulation is develo… Show more

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Cited by 3 publications
(8 citation statements)
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“…In this context, research has been conducted and many papers have been published trying to present innovative and improved designs [9] [10]. Most of the proposed work focus on reducing the switching devices count-to-the number of levels ratio [11] [12] [13]. Others attempt to replace diodes by active switches to provide more flexibility and enhance dc voltage balance [14], other studies introduced added elements to provide fault tolerant topologies [15] [16].…”
Section: Introductionmentioning
confidence: 99%
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“…In this context, research has been conducted and many papers have been published trying to present innovative and improved designs [9] [10]. Most of the proposed work focus on reducing the switching devices count-to-the number of levels ratio [11] [12] [13]. Others attempt to replace diodes by active switches to provide more flexibility and enhance dc voltage balance [14], other studies introduced added elements to provide fault tolerant topologies [15] [16].…”
Section: Introductionmentioning
confidence: 99%
“…The added circuitry imposes limitations on the operation of bidirectional switches, which cancels some of the voltage levels. Special SVPWM has been developed for voltage control [13].…”
Section: Introductionmentioning
confidence: 99%
“…For a detailed explanation, it is assumed that in an n -level cascaded inverter with adjustable DC sources, we want to eliminate first n − 1 non-triplen harmonics, minimize THD, and regulate the fundamental component of the produced voltage at a given value. The obtained THD formula includes 2n variables, n DC voltage coefficients, and n switching angles, and with given constraints in (9). It is clear that elimination of n − 1 low-order harmonics means turning their amplitudes to zero, and so the n − 1 nonlinear equality constraints in (10) are obtained.…”
Section: Descriptionmentioning
confidence: 99%
“…The obtained formula consists of only n switching angles and it should only satisfy inequality constraints in (9). In other words, this formula represents THD of a voltage waveform with no n − 1 low-order harmonic orders.…”
Section: Descriptionmentioning
confidence: 99%
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