摘要
控制风电场一体化电力系统的暂态稳定性,可以提高海洋风电场的工作效率,降低运营成本,提高发电产能,因此迫切需要研究大型海上风电场一体化电力系统暂态稳定性。分析电力系统机械转矩特性以及稳态电路电流负荷特性,明确影响电力系统暂态不稳定的因素。建立暂态稳定性标准,使用等面积定则对电力系统暂态稳定性进行分析,并针对不稳定现象提出控制方案。实验结果表明,短路故障会造成功率波动,由功率波动引起频率振荡,使系统无法稳定运行,通过安装频率稳定设备能够很好地提高大型海上风电场一体化电力系统暂态稳定性。
Controlling the transient stability of the integrated power system of wind farms can improve the working efficiency of offshore wind farms,reduce the operating cost and improve the power generation capacity.Therefore,the transient stability of large⁃scale offshore wind farms integrated power system is studied.Analyze the mechanical torque characteristics of the power system and the current load characteristics of the steady⁃state circuit,and identify the factors that affect the transient instability of the power system.The transient stability standard is established,the power system transient stability is analyzed by using the equal area rule,and the control scheme is proposed for the unstable phenomenon.The experimental results show that short⁃circuit fault will cause power fluctuation and frequency oscillation caused by power fluctuation,which makes the system unable to operate stably.By installing frequency stabilization equipment,the transient stability of integrated power system of large⁃scale offshore wind farms can be improved.
作者
胡宗邱
时洪奎
张斯翔
刘洁
盖斐
HU Zongqiu;SHI Hongkui;ZHANG Sixiang;LIU Jie;GAI Fei(China Three Gorges Construction Engineering Corporation,Chengdu 610094,China;Xinjiang Goldwind Technology Co.,Ltd.,Urumqi 830026,China)
出处
《电子设计工程》
2023年第12期58-61,67,共5页
Electronic Design Engineering
基金
中国长江三峡集团有限公司科研项目(201903117)。
关键词
海上风电场
一体化系统
电力系统
暂态稳定性
电流负荷特性
offshore wind farm
integrated system
power system
transient stability
current load cha⁃racteristics
