Control strategy for a modified cascade multilevel inverter with dual DC source for enhanced drivetrain operation

Date published

2017-05-04

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IEEE

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Article

ISSN

0093-9994

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Citation

Maciej Bendyk, Patrick Chi-Kwong Luk, Mohammed Alkhafaji, Control strategy for a modified cascade multilevel inverter with dual DC source for enhanced drivetrain operation, IEEE Transactions on Industry Applications, Volume: 53, Issue: 5, Sept.-Oct. 2017, pp.4655-4664

Abstract

This paper presents a new control strategy for a modified cascade multilevel inverter used in drivetrain operations. The proposed inverter is a three-phase bridge with its dc link fed by a dc source (battery), and each phase seriesconnected respectively to an H-bridge fed with a floating dc source (ultracapacitor). To exploit the potentials of the inverter for enhanced drivetrain performance, a sophisticated yet efficient modulation method is proposed to optimise energy transfer between the dc sources and with the load (induction motor) during typical operations, and to minimise switching losses and harmonics distortion. Detailed analysis of the proposed control method is presented, which is supported by experimental verifications.

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Github

Keywords

Multilevel inverter, dual energy source, switching strategy, drivetrain

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Attribution-NonCommercial 4.0 International

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