저감된 HDF를 갖는 멀티-레벨 이버터를 위한 새로운 SVPWM 기법

In most inverter/converter applications SVPWM method is the preferred approach, for it shows good characteristics in linear modulation range and waveform quality In this paper, we propose a new carrier based SVPWM method for multi-level system, First, we survey the conventional carrier based SVPWM method, and investigate the problem of the conventional one for the multi-level system with the focus on the switching frequency harmonic flux trajectories. Finally, we propose a new carrier based SVPWM method that can reduce harmonic distortion Simulation and experimental results are given for the verification of the proposed SVPWM method