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

页码：812 / 818

页数：7

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