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Switched inverters generate fast rates of change of common-mode voltage and are an unwanted side-effect in variable speed drive systems operated with PWM inverters. Whilst techniques have been reported that theoretically eliminate the common-more voltage, when the dead-time effects and the practical transient performance of semiconductors are considered, a common-mode voltage is still generated, even...
This paper presents a new, simple and generalized approach to calculate flying capacitor currents for an n-level flying capacitor converter without the use of look-up tables. The performance of the proposed method has been studied for a three-, four- and five-level flying capacitor converter in MATLAB/Simulink environment.
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