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|Title:||Optimal pulsewidth modulation of a dual three-level inverter system operated from a single DC link||Authors:||Boller, T.
medium-voltage ac drives
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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