Efficient modulation technique for a four-leg fault-tolerant neutral-point-clamped inverter

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URI: https://hdl.handle.net/11556/2318
ISBN: 1424401364
ISBN: 9781424401369
DOI: 10.1109/IECON.2006.348023
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2006
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Abstract
This paper presents a new low-loss modulation technique for the hybrid three-level four-leg converter. The total losses of the converter are reduced on about 18% in average compared to the standard three-leg neutral-point-clamped converter. Furthermore, the low-frequency voltage oscillation in the neutral-point is completely cancelled, and maximum benefit of the dc-link voltage is obtained. All these facts, together with the fault-tolerant ability due to the fourth leg, make this topology very interesting for applications such as wind generation, in which it is important to maximize efficiency and reliability. Some experimental results confirm good performance of the proposed modulation technique.
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Low losses , Multilevel converter , Neutral-point-clamped (NPC) converter , Reliability , Voltage oscillation , Control and Systems Engineering , Electrical and Electronic Engineering , SDG 7 - Affordable and Clean Energy
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Ceballos , S , Pou , J , Zaragoza , J , Martin , J L , Robles , E & Gabiola , I 2006 , Efficient modulation technique for a four-leg fault-tolerant neutral-point-clamped inverter . in IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics . , 4153341 , IECON Proceedings (Industrial Electronics Conference) , pp. 2090-2095 , IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics , Paris , France , 6/11/06 . https://doi.org/10.1109/IECON.2006.348023
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