Publication

Introducing the Common Cross Connected Stage (C3S) for the 5L ANPC Multilevel Inverter

Alfred Rufer
2008
Article de conférence
Résumé

This paper proposes a novel multilevel Power Electronics Building Block (PEBB) for the 5 level ANPC multilevel voltage source inverter [7]. The PEBB is composed of 6 switches in a crossed configuration [8] and one capacitor. It is common to the 3 phases of a 5 level ANPC topology, enabling a large number of levels to be generated, especially uniform voltages steps in 7 and 9 levels configurations. This PEBB is meant to be a reliable upgrade to the 5L topology, increasing output signal quality, and therefore directly contributing in reducing the size of the output filter notably in medium voltage applications. The number of levels generated by the C3S PEBB and the ANPC depend on the voltage ratios chosen between the phase capacitors of the ANPC and the PEBB capacitor(s). The trade off stands between ability to balance the capacitors, the rated blocking voltage of the devices and the number of levels produced. Under a given configuration, 9 levels can be produced with the possibility to balance the capacitors up to modulation indexes in the region of m=0.92. The analysis of the general topology, the description of the 9 level case, and simulation results are first presented. Prototyping results are then shown and validate the introduced concept and topology.

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Concepts associés (34)
General topology
In mathematics, general topology (or point set topology) is the branch of topology that deals with the basic set-theoretic definitions and constructions used in topology. It is the foundation of most other branches of topology, including differential topology, geometric topology, and algebraic topology. The fundamental concepts in point-set topology are continuity, compactness, and connectedness: Continuous functions, intuitively, take nearby points to nearby points.
Courant continu haute tension
thumb|upright=1.5|Convertisseurs à thyristors sur le pôle 2 de la ligne Inter-Island en Nouvelle-Zélande.thumb|upright=1.5|Symbole d'un convertisseur AC/DC. Le courant continu haute tension (CCHT), en anglais High Voltage Direct Current (HVDC), est une technologie d'électronique de puissance utilisée pour le transport de l'électricité en courant continu haute tension. Son utilisation est minoritaire par rapport au transport électrique à courant alternatif (AC) traditionnel de nos réseaux électriques.
Capacitor types
Capacitors are manufactured in many styles, forms, dimensions, and from a large variety of materials. They all contain at least two electrical conductors, called plates, separated by an insulating layer (dielectric). Capacitors are widely used as parts of electrical circuits in many common electrical devices. Capacitors, together with resistors and inductors, belong to the group of passive components in electronic equipment.
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