듀티 비에 따른 단상 Z-소스 인버터의 효율과 출력 전압에 관한 연구

홍승표; 정영국; 임영철

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홍승표 (전남대학교)
정영국 (대불대학교)
임영철 (전남대학교)

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이 논문의 연구 히스토리 (2)

2011

듀티 비에 따른 단상 Z-소스 인버터의 효율과 출력 전압에 관한 연구

홍승표 , 정영국 , 임영철 조명·전기설비학회논문지 2011.08 학술저널

Z-소스 인버터의 출력전압과 효율에 관한 연구

홍승표 , 정영국 , 임영철 외 1명 대한전기학회 학술대회 논문집 2011.04 학술대회자료

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This paper was compared for the output voltage and efficiency of the single-phase Z-source inverter(ZSI) according to shoot through duty ratio D. The eight single-phase ZSI in this study are typical ZSI, Embedded ZSI(EZSI), Improved ZSI(IZSI), Quasi ZSI(QZSI), Series ZSI, Trans ZSI(TSI), Switched inductor ZSI(SL-ZSI) and Extended boost ZSI (exZSI). The eight ZSI are divided into two Groups. ; Group-1 which is ZSI with the ordinary voltage boost factor B, and Group-2 which is ZSI with the maximum voltage boost factor B. For the execution of the proposed study, the PSIM simulation was achieved under the condition of input DC voltage=150[V] of ZSI, load =30[Ω] and 60[㎐] output filter. The output voltage and efficiency of each ZSI were calculated within the limits of D=0.1∼0.4. As a result, the output peak voltage of Group-2 was suddenly increased in a specified duty ratio D, and its efficiency was rapidly decreased. On the contrary, Group-1 shown the output and efficiency characteristics without sudden change compared to Group-2 despite the duty ratio increase. The efficiency of the Group-2 was sharply declined at duty ratio D of the most output voltage, but, in case of Group-1, the efficiency was slightly declined. Finally, the input DC current of ZSI with DCM and CCM was discussed.

#Z-Source Inverters #Efficiency and Output voltage #Shoot-through Duty Ratio. CCM #DCM