Songhee Yang, “캐리어 기반의 PWM을 이용한 비엔나 정류기의 동기화 스위칭 기법,” 아주대학교 공학석사 학위 논문, 2017. > Paper

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Paper

Thesis Songhee Yang, “캐리어 기반의 PWM을 이용한 비엔나 정류기의 동기화 스위칭 기법,” 아주대학교 공학석사 학위 논문, 2017.

2017

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This paper proposes a carrier-based pulse width modulation (CB-PWM) method with synchronous switching technique for a Vienna

rectifier. In this paper, a Vienna rectifier is one of the 3-level converter topologies. It is similar to a 3-level T-type topology using back-

to-back switches. When CB-PWM switching method is used, a Vienna rectifier is operated with six PWM signals. On the other hand,

when the back-to-back switches are synchronized, PWM signals can be reduced to three from six. However, the synchronous switching

method has a problem that the current distortion around zero-crossing point is worse than one of the conventional CB-PWM switching

method. To improve current distortions, this paper proposes a reactive current injection technique. The performance and effectiveness

of the proposed synchronous switching method are verified by simulation and experimental with a 5-kW Vienna rectifier.

 

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