Journal ArticleDOI
Multilevel inverters: a survey of topologies, controls, and applications
Reads0
Chats0
TLDR
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.Abstract:
Multilevel inverter technology has emerged recently as a very important alternative in the area of high-power medium-voltage energy control. This paper presents the most important topologies like diode-clamped inverter (neutral-point clamped), capacitor-clamped (flying capacitor), and cascaded multicell with separate DC sources. Emerging topologies like asymmetric hybrid cells and soft-switched multilevel inverters are also discussed. This paper also presents the most relevant control and modulation methods developed for this family of converters: multilevel sinusoidal pulsewidth modulation, multilevel selective harmonic elimination, and space-vector modulation. Special attention is dedicated to the latest and more relevant applications of these converters such as laminators, conveyor belts, and unified power-flow controllers. The need of an active front end at the input side for those inverters supplying regenerative loads is also discussed, and the circuit topology options are also presented. Finally, the peripherally developing areas such as high-voltage high-power devices and optical sensors and other opportunities for future development are addressed.read more
Citations
More filters
Journal ArticleDOI
Selective harmonic mitigation-pulse-width modulation technique with variable DC-link voltages in single and three-phase cascaded H-bridge inverters
TL;DR: In this paper, a modified selective harmonic mitigation pulsewidth modulation (SHM-PWM) technique was proposed to reduce the number of switching transitions in a fundamental period to limit the specific number of harmonics compared to the alternative selective harmonic elimination (SHE) or SHM techniques.
Journal ArticleDOI
A Survey on Reduced Switch Count Multilevel Inverters
Hari Priya Vemuganti,Dharmavarapu Sreenivasarao,Siva Kumar Ganjikunta,Hiralal M. Suryawanshi,Haitham Abu-Rub +4 more
TL;DR: In this article, a comprehensive review and classification of RSC-MLI topologies, in terms of their structure, features, limitations, suitability and selection for specific applications, is presented.
Journal ArticleDOI
A Virtual-Vector Pulsewidth Modulation for theFour-Level Diode-Clamped DC–AC Converter
TL;DR: In this paper, the authors extended the nearest-three virtual-space-vector PWM concept to the four-level DC-AC converter and proposed a simple modulation solution for the DC-link capacitor voltage balance under any operating condition and load.
Journal ArticleDOI
Carrier-Based Neutral Point Potential Regulator With Reduced Switching Losses for Three-Level Diode-Clamped Inverter
TL;DR: This paper presents the design and implementation of a simple neutral point potential (NPP) regulator for a three-level diode-clamped inverter employing a sine-triangle regulator in conjunction with a closed-loop controller with reduced switching losses.
Journal ArticleDOI
Grid Interface of Wind Power With Large Split-Winding Alternator Using Cascaded Multilevel Inverter
TL;DR: In this paper, a wind energy conversion system based on a cascaded H-bridge multilevel inverter (CHBMLI) topology has been proposed to be used for the grid interface of large split-winding alternators (SWAs).
References
More filters
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.
Proceedings ArticleDOI
Multilevel converters-a new breed of power converters
Jih-Sheng Lai,Fang Zheng Peng +1 more
TL;DR: This paper presents three multilevel voltage source converters: (1) diode-clamp, (2) flying-capacitors, and (3) cascaded-inverters with separate DC sources.
Journal ArticleDOI
Direct self-control (DSC) of inverter-fed induction machine
TL;DR: Direct self-control (DSC) as discussed by the authors is a simple method of signal processing that gives converter-fed three-phase machines an excellent dynamic performance, and it is sufficient to process the measured signals of the stator currents and the total flux linkages only.
Journal ArticleDOI
Multilevel converters for large electric drives
TL;DR: Simulation and experimental results show the superiority of the back-to-back diode-clamped converter over two-level pulsewidth-modulation-based drives.