Seung Gyu Seo, “3레벨 계통 연계 인버터의 SVPWM을 위한 LCL-필터 설계,” 아주대학교 공학석사 학위 논문, 2017. > Paper

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Thesis Seung Gyu Seo, “3레벨 계통 연계 인버터의 SVPWM을 위한 LCL-필터 설계,” 아주대학교 공학석사 학위 논문, 2017.

2017

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This paper proposes an LCL-filter design method for space vector pulse width modulation (SVM) in grid-connected three-phase inverter

systems. Although there are several studies in progress, the existing methods are erroneous in the SVM system because they focus on 

other switching methods. This paper presents the design methodology for an LCL-filter that is optimized for SVM switching operations. 

The procedures and techniques described in this paper. First, the inverter-side inductor is determined by an analysis of the ripple 

components, mathematically. Secondly, based on the reactive power absorption ratio, the filter capacitor is determined. Finally, the grid- 

side inductor is determined by the ripple attenuation factor of the output current. The simulation and experimental results verify the 

validity of the design method for the LCL-filter. 

 

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