Three-Phase Cascaded Multilevel Inverter Using Power Cells With Two Inverter Legs in Series

Waltrich, Gierri; Barbi, I.

doi:10.1109/tie.2010.2043040

Cited by 141 publications

(103 citation statements)

References 20 publications

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“…The topologies in [6], [8], [13] and [14], generate 2n+1 levels for n number of dc sources with an equal magnitude. However, the required number of IGBTs varies for each topology as shown in the comparison chart in Fig.6.…”

Section: A Comparison Of the Required Number Of Igbts For Symmetric mentioning

confidence: 99%

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A New Symmetric Multilevel Inverter Topology Using Single and Double Source Sub-Multilevel Inverters

Ramani¹,

Ali²,

Selvam³

2015

Journal of Power Electronics

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In recent years, the multilevel converters have been given more attention due to their modularity, reliability, failure management and multi stepped output waveform with less total harmonic distortion. This paper presents a novel symmetric multilevel inverter topology with reduced switching components to generate a high quality stepped sinusoidal voltage waveform. The series and parallel combinations of switches in the proposed topology reduce the total number of conducting switches in each level of output voltages. In addition, a comparison between the proposed topology with another topology from the literature is presented. To verify the proposed topology, the computer based simulation model is developed using MATLAB/Simulink and experimentally with a prototype model results are then compared.

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Section: A Comparison Of the Required Number Of Igbts For Symmetric mentioning

confidence: 99%

“…In addition, this topology may require bidirectional switches. In [8], a cascaded connection of power cells proposed with a minimum number of switches when compared to conventional CHB. Even then, it requires a larger number of power switches.…”

Section: Introductionmentioning

confidence: 99%

A New Symmetric Multilevel Inverter Topology Using Single and Double Source Sub-Multilevel Inverters

Ramani¹,

Ali²,

Selvam³

2015

Journal of Power Electronics

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“…The principal disadvantage is the need to control and regulate the capacitor charging/discharging processes to ensure that their voltage levels remain quasi constant. Another distinct type of multi-level inverters is the Cascaded HBridge configuration [9][10][11]. In this topology, each inverter phase is built of several series connected Hbridges, while each H-bridge is supplied by its own DC voltage source.…”

Section: Introductionmentioning

confidence: 99%

Novel Asymmetrical Pulse Width Modulation Method

Baimel

Tapuchi

2017

MATEC Web Conf.

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Abstract. The paper proposes new asymmetrical PWM that can be used for operation of multilevel inverters. The working and construction principle of this PWM is demonstrated on 13-level PWM signal that is applied to nine-level inverter and operates it as 13-level inverter. The proposed PWM signal consists of 5-level hybrid PWM which is constructed from two PWM signals-combined parts of the standard 5-level Phase Disposition (PD) PWM and pulsed PWM. The sum of these two PWM signals produces the desired 13-level PWM signal that is applied to the 9-level cascaded inverter. The proposed PWM method allows reduction of 13-level inverter components compared to the standard topologies such as neutral point clamped or flying capacitor inverters. This results in smaller size, weight and cists of the inverter.. Extensive simulation results validate the practicability of the proposed PWM method. The proposed method can be extended to any desired number of levels.

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“…Its modular structure is easy expandede and allows to use of low-voltage semiconductors in high voltage/power applications. In [11], the association of the two single-phase half-bridge converters has been used as the basic cell of the cascaded topology. This basic cell can generate three levels of output voltage, such as the H-bridge converters.…”

Section: Introductionmentioning

confidence: 99%

Study of the Modulation Schemes in the Hybrid Three-Phase Multilevel Inverter

Bressan¹,

Heldwein²,

Batschauer³

2017

Eletrônica de Potência

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-This work proposes and analyzes modulation strategies for a hybrid three-phase multilevel inverter, which employs two different topologies in a cascade connection, a three-phase Neutral Point Clamped (NPC) converter and single-phase half-bridge converters. Two different modulation schemes are proposed: the hybrid modulation and the space vector modulation. The both modulation schemes can synthesize five voltage levels in the output phase voltage at the hybrid three-phase multilevel inverter with symmetrical dc sources. The modulation schemes operate the three-phase NPC in low-switching frequency and the half-bridge converters in high-switching frequency. Thus, semiconductors with low conduction losses can be used for three-phase NPC, decreasing the semiconductor losses. The hybrid three-phase multilevel inverter structure and modulation schemes are explained in detail and verified by simulation and experimental results.

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Three-Phase Cascaded Multilevel Inverter Using Power Cells With Two Inverter Legs in Series

Cited by 141 publications

References 20 publications

A New Symmetric Multilevel Inverter Topology Using Single and Double Source Sub-Multilevel Inverters

A New Symmetric Multilevel Inverter Topology Using Single and Double Source Sub-Multilevel Inverters

Novel Asymmetrical Pulse Width Modulation Method

Study of the Modulation Schemes in the Hybrid Three-Phase Multilevel Inverter

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