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논문 기본 정보

자료유형
학술대회자료
저자정보
Jingyi Liu (Huazhong University of Science and Technology) Yuanzhu Chang (Huazhong University of Science and Technology) Jiabing Hu (Huazhong University of Science and Technology) Lei Shang (Huazhong University of Science and Technology)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2019-ECCE Asia
발행연도
2019.5
수록면
2,905 - 2,910 (6page)

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As the voltage source converters (VSCs) are widely used as the important interface between the new energy applications and the power systems, the transient characteristics of VSC have great influence on the operation of the modern power systems. In this paper, internal voltage concept is introduced to represent the external characteristics of VSC. The amplitude/frequency characteristics of VSC internal voltage under non-severe grid fault and severe grid fault are analyzed and compared. The results show that under non-severe grid fault, the amplitude/frequency characteristics of VSC internal voltage are periodic time-varying. And the amplitude and frequency are the linear combination of modes of the close-loop system, while in severe grid fault, the characteristics of amplitude and frequency are aperiodic time-varying and are decided by the modes and the nonlinear elements. The results and conclusion are validated in Matlab/Simulink.

목차

Abstract
I. INTRODUCTION
II. INTERNAL VOLTAGE BASED MODEL OF VSC
III. AMPLITUDE/FREQUENCY CHARACTERISTICS OF VSC INTERNAL VOLTAGE UNDER NON-SEVERE GRID FAULT
IV. AMPLITUDE/FREQUENCY CHARACTERISTICS OF VSC INTERNAL VOLTAGE UNDER SEVERE GRID FAULT
V. CONCLUSION
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