Improving Fault Recovery Performance of an HVDC Link with a Weak Receiving AC System by Optimization of DC Controls

被引：0
|
作者：
Chao, Hong [1 ]
机构：
[1] China Southern Power Grid Co Ltd, Elect Power Res Inst, Power Syst Res Dept, Guangzhou, Guangdong, Peoples R China
来源：
2018 INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON) | 2018年
关键词：
electromagnetic transient simulation; fault recovery; HVDC controls; weak AC systems;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
A problem associated with an HVDC link feeding into a weak AC system is the poor fault recovery performance from commutation failures caused by inverter AC system faults, especially when the receiving AC system is further weakened due to faults clearing. To obtain acceptable recovery performance, the pre-fault DC power transfer capability may have to be limited below the rated DC power. Based on electromagnetic transient simulations, the available power transfer capability of an actual HVDC system is evaluated by considering fault recovery performance of the AC/DC system under specified receiving AC system faults. To increase the available power transfer capability, the optimization of HVDC controls is implemented aiming at obtaining acceptable recovery performance. Simulation results show that the optimized HVDC controls can help to improve fault recovery performance and hence obviously increase the DC power transfer capability.
引用
收藏
页码：4474 / 4479
页数：6
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