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https://doi.org/10.1109/TIA.2012.2210016
Title: | Optimal pulsewidth modulation of a dual three-level inverter system operated from a single DC link | Authors: | Boller, T. Holtz, J. Rathore, A.K. |
Keywords: | Common-mode voltage medium-voltage ac drives multilevel inverters optimal pulsewidth modulation (PWM) total harmonic distortion (THD) |
Issue Date: | 2012 | Citation: | Boller, T., Holtz, J., Rathore, A.K. (2012). Optimal pulsewidth modulation of a dual three-level inverter system operated from a single DC link. IEEE Transactions on Industry Applications 48 (5) : 1610-1615. ScholarBank@NUS Repository. https://doi.org/10.1109/TIA.2012.2210016 | Abstract: | Operating a dual three-level inverter system from a single dc link circuit is an economic solution for generating five-level output voltage waveforms and to double the output power compared to a single three-level inverter. Such an inverter system is used for feeding a drive motor with open stator windings. A mechanism is then required to reduce the common-mode voltage components of the motor voltages. This paper describes an offline optimization method that minimizes both the harmonic distortion of the motor currents and the common-mode voltage components. The optimization permits reduction of the switching frequency to a very low value of 200 Hz without compromising the harmonic distortion. High performance operation of the drive system at low switching frequency is experimentally demonstrated. © 1972-2012 IEEE. | Source Title: | IEEE Transactions on Industry Applications | URI: | http://scholarbank.nus.edu.sg/handle/10635/71297 | ISSN: | 00939994 | DOI: | 10.1109/TIA.2012.2210016 |
Appears in Collections: | Staff Publications |
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