Phase-shifted PWM strategy of a seven-level single-phase current source inverter for grid-connection systems

Lekgamheng, N.; Kumsuwan, Yuttana

doi:10.1109/peds.2013.6527170

Cited by 6 publications

(2 citation statements)

References 6 publications

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“…In case of multi-rated MLC topology, to make a generic L-level it requires 2*(L − 1) semiconductor devices and (n − 3) current sharing inductors whereas with the two-stage MLC topology only (L + 3) semiconductor devices and L−3 2 current sharing inductors are needed [51]. A detailed modes of operation of two-stage MLC can be referred from [52]. To further reduce the number of switches in the converter by half in number, the top switches in the boosting stage of the topology can be replaced by power diodes [50].…”

Section: Emerging Multilevel Topologiesmentioning

confidence: 99%

Current-Fed Multilevel Converters: An Overview of Circuit Topologies, Modulation Techniques, and Applications

Kulothungan

Rathore

Edpuganti

et al. 2017

IEEE Trans. Power Electron.

108

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Multilevel converters (MLC) have emerged as standard power electronic converters in high power as well as quality demanding applications. They are classified into current-fed MLC and voltage-fed MLC. Voltage-fed MLC has widely researched whereas the current-fed MLC are the recent topic of research. Based on the principle of duality between voltage and current sources, several current-fed MLCs analogous to voltage-fed MLCs have been identified. Current-fed MLC offer several advantages in terms of high power capability, transformer-less operation, short circuit protection and excellent quality of output current waveform. The goal of this paper is (1) to present review of circuit topologies, modulation schemes and applications of current-fed MLCs and, (2) to propose an emerging low device switching frequency modulation technique known as synchronous optimal pulsewidth modulation for current-fed MLCs. The circuit configuration and advantages of each topology along with various modulation techniques are discussed in detail. Compared to voltage-fed MLCs, the operation of current-fed MLCs need to satisfy additional switching constraints. Classical methods for realization these operational constraints are surveyed and new generic method has been proposed. Finally future scope of research has been presented to encourage further development of topologies and modulation techniques for current-fed MLCs.

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Section: Emerging Multilevel Topologiesmentioning

confidence: 99%

Current-Fed Multilevel Converters: An Overview of Circuit Topologies, Modulation Techniques, and Applications

Kulothungan

Rathore

Edpuganti

et al. 2017

IEEE Trans. Power Electron.

108

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“…Multilevel inverter with N levels requires (N-1) triangular carriers. In phase shifted PWM, all the triangular carriers have same frequency and same peak to peak amplitude [12]. Table III shows THD comparison between different PWM techniques.…”

Section: A Operation Of a Proposed 9-level Multi-level Invertermentioning

confidence: 99%

A three-phase 9-level inverter with reduced switching devices for different PWM techniques

Yadav

Bansal

Saxena

2014

2014 6th IEEE Power India International Conference (PIICON)

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Multilevel inverter is a power electronic device and that is become more popular over the years in high-power high-voltage applications. Multilevel inverters have unique structure which makes it possible to reach high voltages with less harmonic content and lower EMI. The harmonic content of the output voltage waveform decreases as the number of output voltage increases. This paper proposes a 9-level multi-level inverter with Reversing Voltage topology. This proposed multilevel inverter topology here is implemented in single-phase and three-phase with different pulse width modulation (PWM) techniques, which requires less number of components, and gate drive circuit as compared to other multilevel inverters. A multicarrier PWM technique is used for multilevel inverter topology to generate 9-level output phase voltage. Finally simulation results of a 9-level multi-level inverter topology are carried out using MATLAB/simulink R2013a software version.

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A novel symmetrical multilevel inverter topology with reduced switching devices using different PWM techniques

Kumar

Bansal

2015

2015 International Conference on Electrical, Electronics, Signals, Communication and Optimization (EESCO)

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Phase-shifted PWM strategy of a seven-level single-phase current source inverter for grid-connection systems

Cited by 6 publications

References 6 publications

Current-Fed Multilevel Converters: An Overview of Circuit Topologies, Modulation Techniques, and Applications

Current-Fed Multilevel Converters: An Overview of Circuit Topologies, Modulation Techniques, and Applications

A three-phase 9-level inverter with reduced switching devices for different PWM techniques

A novel symmetrical multilevel inverter topology with reduced switching devices using different PWM techniques

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