A New Topology of Four-Level Hybrid Half-Bridge Flying-Capacitor Inverter

4-레벨 하이브리드 하프 브리지 플라잉 캐패시터 인버터의 새로운 토폴로지

This paper proposes the operation scheme and control method for a four-level hybrid half-bridge flying-capacitor inverter (4L-HHBFCI). With in-phase disposition level-shifted modulation (IPD), the flying capacitor voltage ripple is less than 1% of the reference value, while the line-to-line voltage total harmonic distortion is 23.27% at unity modulation index. The performance and effectiveness of the proposed inverter operation have been verified by simulation results.