Journal Article10.1109/TIE.2005.847586
The active NPC converter and its loss-balancing control
T. Bruckner,S. Bernet,H. Guldner +2 more
792
TL;DR: A loss-balancing scheme is introduced, enabling a substantially increased output power and an improved performance at zero speed, compared to the conventional NPC VSC.
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Abstract: The three-level neutral-point-clamped voltage-source converter (NPC VSC) is widely used in high-power medium-voltage applications. The unequal loss distribution among the semiconductors is one major disadvantage of this popular topology. This paper studies the loss distribution problem of the NPC VSC and proposes the active NPC VSC to overcome this drawback. The switch states and commutations of the converter are analyzed. A loss-balancing scheme is introduced, enabling a substantially increased output power and an improved performance at zero speed, compared to the conventional NPC VSC.
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Citations
Switching Loss Analysis of 4.5-kV–5.5-kA IGCTs Within a 3L-ANPC Phase Leg Prototype
TL;DR: In this paper, the authors presented the characterization of a 4.5-kV-5.5kA integrated gate-commutated thyristor (IGCT) within a 3L-ANPC phase leg.
46
Five-Level T-Type Inverter Based on Multistate Switching Cell
Ronny Glauber de Almeida Cacau,R. P. Torrico-Bascope,João Aberides Ferreira Neto,Grover V. Torrico-Bascope +3 more
TL;DR: A new T-type inverter topology based on multistate switching cell is proposed, providing high-order harmonics that are easily filtered and reducing the magnetic weight and volume of the inverter.
46
Tradeoff Study of Heat Sink and Output Filter Volume in a GaN HEMT Based Single-Phase Inverter
TL;DR: In this article, the tradeoff study of heat sink and output filter volume of a GaN HEMT-based single-phase inverter is presented, and the results of extensive experimental and analytical characterization are discussed.
Patent
Voltage source converter (VSC) with neutral-point-clamped (NPC) topology and method for operating such voltage source converter
Thiago Batista Soeiro,Johann W. Kolar,Per Ranstad,Jörgen Linner +3 more
- 05 Nov 2012
TL;DR: A Voltage Source Converter (VSC) with Neutral-Point-Clamped (NPC) topology with one or more phases, comprises an intermediate DC circuit having at least a first and a second capacitance connected in series between a positive terminal and a negative terminal, providing a central tap terminal between both capacitances, and at least one sub-circuit for generating one phase of an alternating voltage, each subcircuit comprising an AC terminal for supplying a pulsed voltage as discussed by the authors.
45
Neutral-point potential balancing control strategy of three-level active NPC inverter based on SHEPWM
TL;DR: The proposed control strategy can effectively control the neutral-point potential (NP) balancing and eliminate the selective harmonics simultaneously and is verified on a Matlab/Simulink model and prototype of a three-phase 3L-ANPC inverter.
45
References
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