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
Analytical Determination of Conduction and Switching Power Losses in Flying-Capacitor-Based Active Neutral-Point-Clamped Multilevel Converter
TL;DR: In this article, the conduction and switching power loss in an active neutral-point-clamped (ANPC) flying capacitor multicell (FCM) converter is investigated.
Journal ArticleDOI
DC-Bus Voltage Range Extension in 1500 V Photovoltaic Inverters
TL;DR: In this article, the authors investigated the dc-bus voltage range extension capabilities of single-stage conversion photovoltaic (PV) inverters with a focus on DC modulation and power devices utilization.
Journal ArticleDOI
A Boost-Type Nine-Level Switched Capacitor Inverter
Yuya Nakagawa,Hirotaka Koizumi +1 more
TL;DR: The operation principle, the modulation method, the voltage/current stresses on switches and the determination of capacitances, the simulation results with MATLAB/Simulink R2015a, the experimental results, and the 2-kW simulation results are shown.
Journal ArticleDOI
A Four-level Hybrid-Clamped Converter With Natural Capacitor Voltage Balancing Ability
TL;DR: It can be concluded that the voltages across the flying capacitor and dc-link capacitors can be naturally balanced under ideal and steady-state condition.
Proceedings ArticleDOI
Power electronics - the key technology for renewable energy system integration
TL;DR: In this article, the authors explored the future trends in power electronics for those systems like how to lower the cost of energy and to develop emerging power devices and better reliability tool, which by means of power electronics are changing character as a major part in the electricity generation.
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.