摘要
交流故障后的恢复特性是直流系统控制性能的一项重要指标,直流系统快速平稳地恢复有利于交流系统的稳定运行。直流系统控制器参数设置是影响交流故障后的恢复特性的关键因素。不同的直流工程,控制参数需要根据动态性能试验结果进行调整。本文针对巴西美丽山直流Ⅱ期工程在动态性能试验中遇到的问题,分析原因,并提出解决方法,通过调整控制参数,改善交流故障后的恢复特性,满足了工程要求。对其他直流工程改善恢复特性,有一定的参考和借鉴意义。
The recovery characteristic after AC fault is an important index of the control performance of DC system.The fast and stable recovery of DC system is beneficial to the stable operation of AC system.The parameter setting of DC system controller is a key factor affecting the recovery characteristics after AC fault.For different DC projects,the control parameters need to be adjusted according to the results of dynamic performance test.Aiming at the problems encountered in the dynamic performance test of Belo MonteⅡUHVDC Project in Brazil,analyze the causes and propose solutions,the recovery characteristics after AC fault are improved by adjusting control parameters,which meets the engineering requirements.It can be used for reference to improve the recovery characteristics of other DC projects.
作者
李林
吕彦北
龚飞
王永平
Li Lin;Lyu Yanbei;Gong Fei;Wang Yongping(NR Electric Co.,Ltd,Nanjing 211102)
出处
《电气技术》
2020年第7期57-63,共7页
Electrical Engineering
关键词
直流输电
交流故障
恢复特性
控制参数
ultra high voltage direct current(UHVDC)
AC fault
recovery characteristics
control parameters
