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GENERALIZED PWM APPROACH FOR DC CAPACITORS VOLTAGE BALANCING IN DIODE-CLAMPED MULTILEVEL CONVERTERS
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| Author(s) |
Felipe BOVOLINI GRIGOLETTO, Humberto PINHEIRO |
| Abstract |
This paper develops a generalized Pulse Width Modulation approach to eliminate both the low frequency oscillations and imbalances in the dc-link capacitor voltages, which are the main drawbacks of diode clamped converters. The algorithm has been developed within the Carrier-Based PWM framework to facilitate its implementation in diode clamped converters with four or more levels. In addition, a generalized control strategy for the dc voltages control is proposed and its stability is demonstrated. The good performance of the proposed modulation technique is demonstrated from simulation results of a four level diode clamped inverter. |
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| Filename: | 0942-epe2009-full-15122823.pdf |
| Filesize: | 260.6 KB |
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| Type |
Members Only |
| Date |
Last modified 2010-01-27 by System |
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