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
Power quality improvement of a system using three phase cascaded H-bridge multilevel inverters (a comparison)
Vikas Deep Juyal,Sudha Arora +1 more
TL;DR: This paper is focused on the study of five-level and fifteen-level cascaded H-bridge inverter and total harmonic distortion in output voltage waveforms is compared and phase disposition technique is used for generating the control signals.
Journal ArticleDOI
A Modulation Method to Eliminate Leakage Current and Balance Neutral-Point Voltage for Three-Level Inverters in Photovoltaic Systems
TL;DR: In this paper , a novel modulation technique for neutral-point-clamped (NPC) inverters is presented, which contains ZCMV PWM and another two modulation modes which keep CMV constant in one switching period, so as to eliminate leakage current.
Journal ArticleDOI
Model-Based Voltage Quality Analysis and Optimization in Post-Fault Reconfigured N-Level NPC Inverter
Weiqiang Chen,Ali M. Bazzi +1 more
TL;DR: A model-based voltage quality analysis and optimization method is proposed to alleviate the voltage quality degradation of post-fault reconfigured N-level NPC inverter and results validate the effectiveness of the proposed optimization method.
Proceedings ArticleDOI
Model predictive current control for T-type NPC inverter using new on-line inductance estimation method
TL;DR: In this article, a new inductance estimation method is applied to predict future inductance values on-line, future current values as well as voltage values of 2 capacitors in order to improve the current quality.
Journal ArticleDOI
A Nine-Level Split-Capacitor Active-Neutral-Point-Clamped Inverter and Its Optimal Modulation Technique
TL;DR: In this paper , the authors proposed a hybrid nine-level inverter for high-efficiency applications based on the popular five-level active-neutral-point-clamped (5L-ANPC) topology.
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.