Three-Phase DC–AC Converter Using Four-State Switching Cell

Hausmann, Romeu; Barbi, I.

doi:10.1109/tpel.2010.2091722

Cited by 43 publications

(7 citation statements)

References 19 publications

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“…This can be achieved by 1) Using Common-Mode (CM) inductor in series with the line filter inductor for each of the VSCs [8]. 2) Using the Coupled Inductor (CI) to suppress the circulating current by providing magnetic coupling between the parallel interleaved legs of the corresponding phases [15]- [20] (refer Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

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An Integrated Inductor for Parallel Interleaved Three-Phase Voltage Source Converters

Gohil

Bede

Teodorescu

et al. 2016

IEEE Trans. Power Electron.

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Three phase Voltage Source Converters (VSCs) are often connected in parallel to realize high current output converter system. The harmonic quality of the resultant switched output voltage can be improved by interleaving the carrier signals of these parallel connected VSCs. As a result, the line current filtering requirement can be reduced. However, an additional inductive filter is required to suppress the circulating current. The integrated inductive component, which combines the functionality of the line filter inductor and the circulating current inductor is presented in this paper. An analysis of the flux density distribution in the integrated inductor is presented and design procedure is described. The analysis has been also verified by performing finite element analysis. The advantage offered by the use of the integrated inductor is demonstrated by comparing its volume with the volume of the state-of-the-art filtering solution. The performance of the integrated inductor is also verified by the experimental measurements.

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Section: Introductionmentioning

confidence: 99%

“…Moreover, the solution presented in [21] is only applicable to two parallel interleaved VSCs. The circulating current suppression for three parallel VSCs is presented in [20]. Three limb magnetic core is used for the CIs and single phase inductors are employed for the line current filtering of each of the phases.…”

Section: Introductionmentioning

confidence: 99%

An Integrated Inductor for Parallel Interleaved Three-Phase Voltage Source Converters

Gohil

Bede

Teodorescu

et al. 2016

IEEE Trans. Power Electron.

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“…In brief, if these two converters are combined into a boost-converter, then a 'suitable modulator' is capable of lowering the power losses and the THD [9][10][11]. In [12][13][14][15], various topologies are presented that combine the mentioned tasks of the two converters.…”

Section: Introductionmentioning

confidence: 99%

New concept on sinusoidal modulation for three‐phase DC/AC converters: analysis and experiments

Eskandari

Bina

Golkar

2014

IET Power Electronics

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Various modulation schemes have already been developed for conventional three-phase buck-type converters such as sinusoidal pulse-width modulation and space vector modulation (SVM). However, SVM is not applicable to boost-type converters. This study proposes a new concept on sinusoidal modulation for both buck and boost-type three-phase DC-AC converters. A novel optimised modulation technique is introduced by using basic equations of conventional buck and boost. By solving the optimisation problem, pulse widths will be obtained for a given modulation index. The significant point is that the optimisation problem should not be solved for every modulation index because the answer of the optimisation problem obeys a certain pattern. Also, this method has a positive effect on reducing losses, especially in boost-converters. Analysis and simulations are first introduced for three-phase boost-converters, and then is extended to a buck converter. Furthermore, practical verification takes place on two implemented 1 kVA boost and buck-converters in order to confirm the proposed technique as well as theoretical analysis and simulations. The experiments and simulations both verify the suggested optimised modulation technique.

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“…A three-phase DC-AC converter using four-state switching cell is presented in [7]. The three outputs of each phase are coupled through inductors assembled on a single core.…”

Section: Introductionmentioning

confidence: 99%

Space vector modulation for a single-phase converter with parallel legs using virtual vectors concept

Kanieski

Grigoletto

Gündling

et al. 2013

2013 Brazilian Power Electronics Conference

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This paper explores the space vector modulation for voltage fed converters with multiple parallel coupled legs. The proposed modulation strategy allows the synthesis of multilevel equivalent PWM voltage patterns with reduced total harmonic distortion. In addition, thanks to the use of virtual vectors concept, it is possible to establish the voltage limits required to ensure equal current sharing between adjacent legs, avoiding saturation of the coupled inductors. Furthermore the developed modulation approach provides a degree of freedom to select switching sequences that minimizes the inner high frequency leg current ripple. The proposed space vector modulation is demonstrated for a single phase converter, however it can be easy generalized for three phase counterpart. Simulation results are presented to support the developed analysis demonstrating the very good performance of the proposed modulation technique.

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Three-Phase DC–AC Converter Using Four-State Switching Cell

Cited by 43 publications

References 19 publications

An Integrated Inductor for Parallel Interleaved Three-Phase Voltage Source Converters

An Integrated Inductor for Parallel Interleaved Three-Phase Voltage Source Converters

New concept on sinusoidal modulation for three‐phase DC/AC converters: analysis and experiments

Space vector modulation for a single-phase converter with parallel legs using virtual vectors concept

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