Journal ArticleDOI
A Survey on Neutral-Point-Clamped Inverters
TLDR
The basic operation and the most used modulation and control techniques developed to date of neutral-point-clamped inverters are presented and some technological problems such as capacitor balance and losses are presented.Abstract:
Neutral-point-clamped (NPC) inverters are the most widely used topology of multilevel inverters in high-power applications (several megawatts). This paper presents in a very simple way the basic operation and the most used modulation and control techniques developed to date. Special attention is paid to the loss distribution in semiconductors, and an active NPC inverter is presented to overcome this problem. This paper discusses the main fields of application and presents some technological problems such as capacitor balance and losses.read more
Citations
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Proceedings ArticleDOI
Accurate Power Loss Model of a Three-level ANPC Inverter Utilizing Hybrid Si/SiC Switching Devices
TL;DR: In this paper, an accurate power loss model of an ANPC inverter employing hybrid Si/SiC switches that accounts the current and voltage profile and gate control strategy of the hybrid Si and SiC switches is presented.
OtherDOI
Multilevel converters – configuration of circuits and systems
TL;DR: This chapter provides a general description of a single‐star bridge‐cell (SSBC)‐based static synchronous compensator (STATCOM) characterized by phase‐shifted‐carrier pulse width modulation (PWM), with a focus on capacitor‐voltage balancing.
Proceedings ArticleDOI
Selective harmonic elimination for modular 5-level MLC 2 topology based 7-level inverter by using genetic algorithms
TL;DR: In this paper, a modulation technique is proposed by combining selective harmonic elimination (SHE-PWM) and an optimized procedure with genetic algorithms (GA) to mitigate individual harmonic components, reduce total harmonic distortion (THD), control the amplitude modulation index (ma) and frequency of the output fundamental component, while complying with the Brazilian grid codes.
Journal ArticleDOI
Performance Analysis of Dual Space Vector Modulation Technique-Based Quasi Z-Source Direct Matrix Converter
TL;DR: In this paper, a dual space vector control strategy for quasi Z-source direct matrix converter (QZSDMC) is proposed, which is made up of quasi Z source network coupled to a matrix converter.
Journal ArticleDOI
A Dual Modulation Waveform PWM Combined With Phase-Shifted Carriers in Stacked Multicell Converter
TL;DR: In this article, a hybrid dual modulation waveform pulsewidth modulation (DMW-PWM) strategy for 5L-SMC was proposed, where the driver signals of each cell are generated by comparing dual modulating waves and two phase-shifted carriers, respectively.
References
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Journal ArticleDOI
Multilevel inverters: a survey of topologies, controls, and applications
TL;DR: The most important topologies like diode-clamped inverter (neutral-point clamped), capacitor-Clamped (flying capacitor), and cascaded multicell with separate DC sources are presented and the circuit topology options are presented.
A New Neutral-Point-Clamped PWM Inverter
TL;DR: In this article, a neutral-point-clamped PWM inverter composed of main switching devices which operate as switches for PWM and auxiliary switching devices to clamp the output terminal potential to the neutral point potential has been developed.
Journal ArticleDOI
A New Neutral-Point-Clamped PWM Inverter
TL;DR: The neutral-point-clamped PWM inverter adopting the new PWM technique shows an excellent drive system efficiency, including motor efficiency, and is appropriate for a wide-range variable-speed drive system.
Journal ArticleDOI
Multilevel Voltage-Source-Converter Topologies for Industrial Medium-Voltage Drives
TL;DR: This paper covers the high-power voltage-source inverter and the most used multilevel-inverter topologies, including the neutral-point-clamped, cascaded H-bridge, and flying-capacitor converters.
Journal ArticleDOI
Pulsewidth modulation-a survey
TL;DR: The author provides a guideline and quick reference for the practicing engineer to decide which methods should be considered for an application of a given power level, switching frequency, and dynamic response.