Hyun Woo Sim, June-Seok Lee, Kyo-Beum Lee, and Dae Bong Lee, “Cascaded H-bridge Multilevel Inverter Scheme for Increasing Voltage Level,” 전력전자학술대회 논문집, pp. 496–497, 2014. > Paper

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Domestic Conference Hyun Woo Sim, June-Seok Lee, Kyo-Beum Lee, and Dae Bong Lee, “Cascaded H-bridge Multilevel Inverter Scheme for Increasing Voltage Level,” 전력전자학술대회 논문집, pp. 496–497, 2014.

2014

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본 논문은 Cascaded H-bridge 멀티레벨 인버터의 출력 전압 레벨 수의 증가를 위한 모델과 스위칭 기법을 제안한다. 제안하는

모델은 기존의 Cascaded H-bridge 멀티레벨 인버터 구조에서 각 H-bridge 모듈의 출력단에 변압기를 연결하고, 변압기2차측을

직렬로 연결한 모델이다. 이 구조에서 다수의 변압기의 턴비는 동일하고, 1개의 변압기 턴비만이 다른 턴비를 갖게된다. 따라서

1개의 변압기 턴비를 조절하여 출력전압의 전압 레벨수를 증가시킬 수 있다. 스위칭 방법은 기존에 멀티레벨 인버터에서 주로

사용되는 Level-shifted PWM 방식을 이용하여 간단하게 구현할 수 있다. 제안하는 모델의 검증을 위하여 시뮬레이션을 수행하여

제안하는 모델의 타당성을 확인한다. 

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