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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Journal ArticleDOI
Hybrid Multilevel Converters: Topologies, Evolutions and Verifications
TL;DR: In this paper, the topologies and evolutions of hybrid multilevel converters are presented, where five topology derivation ways are given by using basic cells in series-parallel/parallel-series.
Journal ArticleDOI
Deadbeat Control Strategy for Circulating Current Suppression in Multiparalleled Three-Level Inverters
TL;DR: Compared with the conventional PI control method, the ZSCC spike is mitigated with the proposed scheme, thus improving the quality of the output currents and the reliability of the 3LT2Is system is improved.
Journal ArticleDOI
Harmonic Reduction in Hybrid Cascaded Multilevel Inverter Using Modified Grey Wolf Optimization
TL;DR: The results obtained through simulation show that the MGWO algorithm is more efficient and accurate than other reported algorithms such as GWO, genetic algorithm, and particle swarm optimization in terms of performance, harmonic reduction, and convergence rate.
Journal ArticleDOI
An Improved Three-Phase Five-Level Inverter Topology With Reduced Number of Switching Power Devices
TL;DR: An optimized topology of 3-$\phi, multilevel inverter (MLI) configuration for five or higher level operation with reduced switch count and the benefits of reduced switching and conduction loss is presented.
Journal ArticleDOI
The Impact of Power Switching Devices on the Thermal Performance of a 10 MW Wind Power NPC Converter
Ke Ma,Frede Blaabjerg +1 more
TL;DR: In this article, the authors proposed a three-level neutral-point-clamped (3L-NPC) topology for wind turbines with full-scale power converter.
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.