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http://dx.doi.org/10.13067/JKIECS.2015.10.3.365

Compensation of Unbalanced Capacitor Voltage for Four-switch Three-phase Inverter Using DC Offset Current Injection  

Park, Young-Joo (광운대학교 대학원 로봇학과)
Son, Sang-Hun (광운대학교 대학원 로봇학과)
Choy, Ick (광운대학교 로봇학부)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.10, no.3, 2015 , pp. 365-373 More about this Journal
Abstract
The performance of 4-switch 3-phase inverter(FSTPI) is mainly affected by the unbalanced voltages between two capacitors which replace two switches of conventional 6-switch 3-phase inverter(SSTPI). This paper proposes a DC offset current injection method to compensate the capacitor voltage unbalance for FSTPI. A simplified SVPWM method which can be applied to FSTPI is also proposed. The validity of the proposed methods is verified by computer simulation.
Keywords
Four-Switch Three-Phase Inverter; Unbalanced Capacitor Voltages; DC Offset Current Injection; Simplified SVPWM;
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Times Cited By KSCI : 3  (Citation Analysis)
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