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논문 기본 정보

자료유형
학술대회자료
저자정보
Minghan. Dong (Zhejiang University) Hao. Ma (Zhejiang University) Zhihong. Bai (Zhejiang University)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2019-ECCE Asia
발행연도
2019.5
수록면
2,956 - 2,961 (6page)

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Dynamic currents and voltages in power electronic converters often exceed rating when changing load. In this way, this paper researches on optimizing transient performance of LCL-type gird-connected inverter systems. Resistor connected in series with capacitor as passive damping (RCSCPD), which is widely used to damp resonance of LCL filter, needs to choose an appropriate resistor to acquire accurate and fast transient performance. To meet this requirement, an approach is proposed for analyzing and improving transient performance. It shows that passive resistor could damp resonance and stable system. Limitation of RCSCPD, which could not optimize dominant transient response, is exhibited as well. Hence, mix damping (MD) is proposed to achieve the goal. It could eliminate overshoot and decrease settling time efficiently when comparing with RCSCPD. MD could configure the poles effectively without adding precision sensors because it uses grid current, which used in control loop, to realize active damping resistor. Experimental results based on single-phase LCL-type gird-connected inverter prototype are given to show optimizing effects of transient performance.

목차

Abstract
I. INTRODUCTION
II. TRANSIENT PERFORAMCNE OF RCSCPD
III. TRNASIENT PEFORMANCE ANALYSIS OF THE PROPOSED OPTIMIZED PASSIVE DAMPING METHOD
IV. EXPERIMENTAL RESULTS
V. CONCLUSIONS
REFERENCES

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