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논문 기본 정보

자료유형
학술저널
저자정보
Pan Hu (Wuhan University) Hongkun Chen (Wuhan University) Lei Chen (Wuhan University) Xiaohang Zhu (Wuhan University) Xuechun Wang (Wuhan University)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.18 No.2
발행연도
2018.3
수록면
467 - 481 (15page)

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초록· 키워드

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Modular multilevel converter (MMC)-based high-voltage direct current (HVDC) presents attractive technical advantages and contributes to enhanced system operation and reduced oscillation damping in dynamic MMC–HVDC systems. We propose an advanced small-signal multi-terminal MMC–HVDC based on dynamic phasors and state space for power system stability analysis to enhance computational accuracy and reduce simulation time. In accordance with active and passive network control strategies for multi-terminal MMC–HVDC, the matchable small-signal stability models containing high harmonics and dynamics of internal variables are conducted, and a related theoretical derivation is carried out. The proposed advanced small-signal model is then compared with electromagnetic–transient and traditional small-signal state-space models by adopting a typical multi-terminal MMC–HVDC network with offshore wind generation. Simulation indicates that the advanced small-signal model can successfully follow the electromechanical transient response with small errors and can predict the damped oscillations. The validity and applicability of the proposed model are effectively confirmed.

목차

Abstract
I. INTRODUCTION
II. MODEL OF THE MULTI-TERMINAL MMC.HVDC SYSTEM
III. SMALL-SIGNAL MODEL OF MULTI-TERMINALMMC.HVDC CONSIDERING THE GENERALIZED CONTROL STRATEGY
IV. ADVANCED SMALL-SIGNAL MODEL BASED ON THE DYNAMIC PHASOR METHOD
V. MODEL ANALYSIS AND VERIFICATION
VI. CONCLUSION
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UCI(KEPA) : I410-ECN-0101-2018-560-001826080