中国电机工程学报2024，Vol.44Issue(8)：2945-2954,中插1,11.DOI:10.13334/j.0258-8013.pcsee.223006
新能源经柔直送出系统的次同步振荡分析与抑制
Analysis and Mitigation of the Subsynchronous Oscillation in Renewable Energy System Connected to the MMC-HVDC
摘要
Abstract
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.关键词
新能源发电/柔性直流输电/次同步振荡Key words
renewable generation/multilevel converter-based high voltage DC/subsynchronous oscillation分类
信息技术与安全科学引用本文复制引用
李浩志,谢小荣,刘芮彤,姜齐荣..新能源经柔直送出系统的次同步振荡分析与抑制[J].中国电机工程学报,2024,44(8):2945-2954,中插1,11.基金项目
国家电网有限公司科技项目(5100-202199515A-0-5-ZN):"双高"电力系统稳定性控制理论和方法研究. Science and Technology Project of State Grid Corporation of China(5100-202199515A-0-5-ZN):Research on Stability Control Theory and Method in Power System with High Penetration of Renewables and Power Electronics. （5100-202199515A-0-5-ZN）
