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
Sliding Mode Control Strategy for Three-Phase Three-Level T-Type Shunt Active Power Filters
TL;DR: In this paper, a sliding mode control (SMC) strategy is proposed for three-phase three-level T-type shunt active power filters (SAPF) and has the ability to balance the capacitor voltages with respect to the neutral-point.
Proceedings ArticleDOI
Precise Inductor Current Ripple Distribution of Three-Level Active Neutral-Point-Clamped Inverter
TL;DR: In this article, the output filter inductor current ripple distribution of a three-level active neutral-point-clamped (3L-ANPC) inverter is studied.
Proceedings ArticleDOI
Elimination of dead-time transients in a three-level flying capacitor inverter using a state machine for switching state sequence selection
TL;DR: In this article, a digital state machine is used to determine the switching state to be applied in the subsequent switching period based on the present switching state, which does not change the effective phase voltage, and the floating capacitors are kept well balanced.
Proceedings ArticleDOI
Determine the optimal switching angles symmetrical cascaded multilevel inverter using Improved particle swarm optimization algorithm
Sajjad Ahmadi,Mostafa Andalib Sahnesaraie,Saeid Hojjati Talami,Fakhteh Dini,Mahnaz Mohebbi Zanganeh,Yazdan Ashgevari +5 more
TL;DR: The particle swarm algorithm has been improved and represents the high efficiency of the improved type of particle Swarm algorithm in determining the appropriate angle of fire for reducing the high harmonics and generating a waveform with very low harmonic distortion and near sinusoidal.
Proceedings ArticleDOI
Improved Modulation Strategy With Reduced Switching Loss for Single-Phase Three-Level T-Type Inverter
TL;DR: An improved modulation strategy with reduced switching loss is proposed to reduce the switching loss and balance the NP voltage simultaneously in single phase three-level T-type inverter.
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.