Multilevel multiphase space vector PWM algorithm applied to three-phase converters

López, Oscar L.; Alvarez, J.; Doval-Gandoy, Jesús; Freijedo, Francisco D.; Nogueiras, A.; Penalver, C.M.

doi:10.1109/iecon.2008.4758487

Cited by 8 publications

(13 citation statements)

References 15 publications

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“…In [13], the multiphase algorithm in [11] was particularized to three-phase converters, and it was shown that in this case the obtained algorithm is nearly the same as the former generalized 3D SVPWM algorithm presented in [9]. In this paper, the multilevel multiphase SVPWM algorithm with switching state redundancy in [12] is particularized for three-phase converters.…”

Section: Introductionmentioning

confidence: 88%

Multilevel multiphase space vector PWM algorithm with switching state redundancy applied to three-phase converters

Lopez¹,

Alvarez²,

Freijedo³

et al. 2009

2009 35th Annual Conference of IEEE Industrial Electronics

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This paper presents the particularization of a recent multilevel multiphase space vector pulse-width modulation algorithm for three-phase converters. This modulation technique takes advantage of the switching state redundancy, which permits to achieve different goals like extending the modulation index range and reducing the number of switchings. The particularized algorithm is then compared with an existing multilevel space vector modulation technique showing many similarities. Finally, the algorithm is implemented in a low cost FPGA and it is tested in laboratory with a real prototype by using a neutral point clamped inverter. I. INTRODUCTIONThe space vector pulse-width modulation (SVPWM) is a very common modulation technique that is still in focus of the research community attention [1]-[5] because it offers a great flexibility to optimize the switching waveforms. This technique represents the reference voltage and the switching states of the converter in a vectorial space. In this space, the reference vector is approximated by means of a sequence of switching vectors. Complexity and computational cost of traditional multilevel SVPWM techniques increase with the number of levels of the converter, and most of them use trigonometric functions or precomputed tables [6], [7]. In the two-dimensional (2D) and the three-dimensional (3D) SVPWM algorithms proposed in [8] and [9], respectively, the calculation of the switching vectors and the switching times is reduced to a few comparison and addition operations, which do not depend on the number of levels. Consequently, those multilevel techniques are very suitable for real-time implementation [10]. Recently, in [11] and [12], two new multiphase SVPWM techniques with low computational complexity, which makes them suitable for on-line implementation using low-cost devices, were presented. Both techniques can be used with the typical multilevel topologies such as diode-clamped, flying capacitor, cascaded full-bridge or even hybrid converters. The modulation technique of [11] is suitable for converters with neutral wire. In the case of converters with floating neutral, this algorithm shows a poor performance because it does not take into account the switching state redundancy. The

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Section: Introductionmentioning

confidence: 88%

Multilevel multiphase space vector PWM algorithm with switching state redundancy applied to three-phase converters

Lopez¹,

Alvarez²,

Freijedo³

et al. 2009

2009 35th Annual Conference of IEEE Industrial Electronics

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“…This sequence and the corresponding dwell times τ j are obtained by means of the two-level 3D SVPWM algorithm without redundancy developed in [9]. This 3D algorithm provides the results displayed in Table I in which the parameters C ab , C bc and C ca are calculated by comparing the components of the fractional part of the reference space vector:…”

Section: Application To Three-phase Four-leg Converters a Calcumentioning

confidence: 99%

“…Therefore, the general multilevel multiphase SVPWM techniques developed in [7] and [8] can be applied to solve the space vector modulation problem in four-leg converters. This paper is the last one of a series of four papers that show the application of both multiphase multilevel SVPWM techniques to three-phase converters with three and four legs [9]- [11]. The application of the multiphase modulation technique in [7] to multilevel converters with three legs provides the simple modulation algorithm in [9], which is fully equivalent to the previous threedimensional (3D) SVPWM algorithm presented in [12].…”

Section: Introductionmentioning

confidence: 96%

“…The modulation technique in [7] does not make use of the switching state redundancy available in multilevel converters, which allows to use different switching state combinations with the same phase-to-phase voltages but with different homopolar voltage component. Consequently, the modulation index range available with the SVPWM algorithms in [9] and [10] is not optimal and it can be extended. Such problem is solved by the multilevel multiphase SVPWM technique in [8] that takes advantage of the switching state redundancy.…”

Section: Introductionmentioning

confidence: 97%

“…This paper is the last one of a series of four papers that show the application of both multiphase multilevel SVPWM techniques to three-phase converters with three and four legs [9]- [11]. The application of the multiphase modulation technique in [7] to multilevel converters with three legs provides the simple modulation algorithm in [9], which is fully equivalent to the previous threedimensional (3D) SVPWM algorithm presented in [12]. If the technique in [7] is applied to multilevel four-leg converters then the result is the novel four-dimensional (4D) SVPWM algorithm presented in [10].…”

Section: Introductionmentioning

confidence: 99%

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Multilevel multiphase space vector PWM algorithm with switching state redundancy applied to three-phase four-leg converters

López

Alvarez

Freijedo

et al. 2010

IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society

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Three-phase four-leg voltage-source converters are used in inverter, rectifier and active filter applications to control the neutral current caused by unbalanced or nonlinear loads. From the modulation point of view, a four-leg converter can be considered as a four-phase system. Hence, the modulation task can be carried out with a generic multiphase modulation algorithm. In this paper, a recent multilevel multiphase space vector PWM algorithm with switching state redundancy is particularized for multilevel three-phase four-leg converters. The obtained algorithm is compared with an existing three-dimension modulation technique showing important similarities. Finally, the new algorithm is implemented in a low-cost field-programmable gate array and it is tested with a five-level cascaded full-bridge inverter.

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Implementation Decentralized Space Vector PWM Method for Multilevel Multiphase Converters

Nguyen,

Phan,

Nguyen

2024

IEEE Access

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Multilevel multiphase space vector PWM algorithm applied to three-phase converters

Cited by 8 publications

References 15 publications

Multilevel multiphase space vector PWM algorithm with switching state redundancy applied to three-phase converters

Multilevel multiphase space vector PWM algorithm with switching state redundancy applied to three-phase converters

Multilevel multiphase space vector PWM algorithm with switching state redundancy applied to three-phase four-leg converters

Implementation Decentralized Space Vector PWM Method for Multilevel Multiphase Converters

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