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
A new nine-level single-DC source-based inverter topology for distributed generation
N. Sandeep,Udaykumar R Y +1 more
TL;DR: In this paper, a hybrid 9-level inverter topology for grid integration of renewable energy sources is presented and the structural details, operating principle, capacitor voltage balancing control and the main features of the proposed inverter are presented.
Journal ArticleDOI
Selective harmonic elimination in hybrid cascaded multilevel inverter using modified whale optimization
Journal ArticleDOI
A performance comparison of transformer-less grid tied PV system using diode clamped and neutral point shorted inverters
Suroso Suroso,Hari Siswantoro +1 more
TL;DR: Results showed that in case of harmonics content, the diode clamped inverter injected less harmonics components than the neutral point shorted inverter, which provides a simpler inverter circuit in the transformerless systems.
Journal ArticleDOI
Enhanced Floating Capacitor Voltage Balancing Schemes for Single-Source Seven-Level Inverters With Capacitor Fed H-Bridge Units
Teenu Techela Davis,Anubrata Dey +1 more
TL;DR: Two novel floating capacitor voltage balancing schemes are proposed in this article, which enhance the linear modulation range of single-source seven-level inverters having floating capacitor fed H-bridge units by adding a suitable common-mode offset to reference signals.
Journal ArticleDOI
A New N-Level Inverter Based on Z-NPC
Ebrahim Babaei,Taher Ahmadzadeh +1 more
TL;DR: In this paper, the topology and operation of the three-phase three-level Z-source inverter based on neutral-point-clamped (Z-NPC) are studied.
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.