Analysis and Mitigation of the Subsynchronous Oscillation in Renewable Energy System Connected to the MMC-HVDC

被引：0
|
作者：
Li H. [1 ]
Xie X. [1 ]
Liu R. [2 ]
Jiang Q. [1 ]
机构：
[1] State Key Laboratory of Power System Operation and Control, Department of Electrical Engineering, Tsinghua University, Haidian District, Beijing
[2] Electric Power Research Institute of State Grid Liaoning Electric Power Supply Co., Ltd., Liaoning Province, Shenyang
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2024年 / 44卷 / 08期
关键词：
multilevel converter-based high voltage DC; renewable generation; subsynchronous oscillation;
D O I：
10.13334/j.0258-8013.pcsee.223006
中图分类号：
学科分类号：
摘要：
During September and October 2022, 2~6 Hz sustained oscillation occurred in a renewable energy system connected to the modular multilevel converter-based high voltage DC (MMC-HVDC) in Northern China, which caused frequent tripping of the doubly-fed induction generators (DFIGs) and equipment damages. The equivalent impedance network models are established using the field recorded data to explain the cause of the oscillation. To mitigate the oscillation, inserting the subsynchronous suppression filter in the DFIG converter control is proposed. The parameter is designed using the measured data, and then field implementation and tests are conducted. Field test results under different operating conditions validate that the proposed method can effectively mitigate the oscillation without any adverse effect on normal operation. It is confirmed the proposed scheme is easy to design and implement, providing an efficient and practical solution for similar issues. ©2024 Chin.Soc.for Elec.Eng.
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页码：2945 / 2954
页数：9
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