Transient Stability Analysis of MMC-Connected PMSGs Under High-impedance Faults

被引：0
|
作者：
Li, Yingbiao [1 ]
Guo, Jianbo [1 ]
Wang, Xiongfei [2 ]
Wu, Heng [2 ]
机构：
[1] China Elect Power Res Inst, Beijing 100192, Peoples R China
[2] Aalborg Univ, Dept Energy Technol, DK-9220 Aalborg, Denmark
来源：
2020 IEEE 9TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE (IPEMC2020-ECCE ASIA) | 2020年
关键词：
Modular Multilevel Converter; transient stability; wind power plant; short-circuit faults; equilibrium points; HVDC; CONVERTERS;
D O I：
10.1109/IPEMC-ECCEAsia48364.2020.9367726
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper analyzes the transient stability of an offshore wind farm connected via modular multilevel converter (MMC)-based high-voltage direct-current transmission system. The wind farm is composed by full-scale type-4 wind turbines, whereas short-circuit faults occurring in between the MMC and wind farm are considered. The MMC tends to be switched to the current limiting mode or the overmodulation mode during the ac-side fault, which further interacts with the control systems of wind turbines, complicating the transient stability problem of the system. Hence, in this work the parametric impacts of the phase-locked loop of wind turbine converters and over-current/-modulation limiters of the MMC are revealed analytically, and further corroborated by time-domain simulations.
引用
收藏
页码：812 / 818
页数：7
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