Comprehensive small-signal stability analysis for master hybrid MMC connected with strong and weak AC systems

Energy Reports

Mengbo Li¹  Xiao Lei²  Xiaojun Lu²  Daixiao Peng³  Zhangbin Yang³  Daijun Luo³ 

[1] Corresponding author.;Changjiang Institute of Survey, Planning, Design and Research Co. Ltd, Jiefang Avenue No.1863, Wuhan 430010, China;China Three Gorges Co. Ltd, Yuyuantan South Road No.1, Beijing 10036, China;

关键词: Small-signal stability;    Modular multilevel converter;    Weak AC system integration;    Small-signal model;   

DOI  :  

来源: DOAJ

【 摘 要 】

The small-signal stability problem of power electronic converters has always been a critical concern for safe operation. This paper conducts a comprehensive analysis of the small-signal stability for the hybrid modular multilevel converter (MMC), which is promising in the application of future over-head-line high-voltage-direct-current transmission. The impacts of the strong and weak AC system connection are comparatively researched through eigenvalue-based analysis. The newly emerging factors that hamper the stability are identified for the weak AC system integration. The work in this paper provides valuable guidance for robust control parameter configuration of the hybrid MMC.

【 授权许可】

Unknown