含柔性直流输电系统的电网潮流优化控制方法

An optimal power flow control method for power grid with VSC-HVDC system

提出了一种含柔性直流输电系统的电网潮流优化控制方法,根据厦门柔性直流输电工程现场运行特点,分析了福建电网不同运行方式下柔性直流输电通道与相关交流输电通道之间的潮流耦合关系,建立了交直流通道的传输功率约束,在保障电网安全的前提下,尽可能地降低电网的有功损耗。该方法在福建省调EMS系统中得到应用,能够实现对含柔性直流输电系统的电网潮流优化控制,提高电网运行安全性、经济性。

An optimal power flow control method for power grid with VSC-HVDC system was presented,according to the field operating characters of Xiamen VSC-HVDC project and the mutual coupling between the VSC-HVDC system and the AC transmission system.The proposed method considered the security constraints of AC/DC transmission channels,and aimed to reduce the gross loss of power grid,which was applicable for different operation modes of power grid.The method was applied in the EMS system of Fujian electric power dispatch and control center,and realized online optimal power flow control,which could improve the security and economy of power grid.