The flexible DC transmission project contains many components,the control mode is relatively complex,and the problems of high-frequency oscillation easily occur during operation.In order to prevent the wind power splitting and system crash caused by high-frequency oscillation,this paper analyzes and discusses the open-loop and closed-loop conversion strategy and the open-loop and closed-loop conversion timing adopted by the offshore flexible DC project.The practice shows that,high-frequency resonance suppression strategy of damped oscillation prevents high-frequency resonance in the process of system open-loop and closed-loop conversion,and enhances the stability of the system.
关键词
柔性直流输电/开闭环控制/风电厂
Key words
flexible DC transmission/open-loop and closed-loop control/wind power plant
维普
万方数据