A Novel Six-Level Inverter Topology with Capacitor Voltage Self-Balancing

커패시터 전압 자기 밸런싱 기능이 있는 새로운 6-레벨 인버터 토폴로지

  • Published : 2020.08.18

Abstract

In this paper, a novel six-level inverter is proposed. Voltage regulation is applied at DC-link and flying capacitors through the implementation of phase-shifted carrier-based modulation with zero-sequence voltage injection. The performance of the proposed structure has been verified under various modulation indices, where low voltage ripple is achieved at each capacitor and total harmonic distortions (THD) of line voltage at unity modulation index is about 15.95%.

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