特高压直流送电能力受交直流故障影响因素研究  

Study on Influencing Factors of AC-DC Fault in UHV DC Transmission Capacity

作　　者：穆星宇 MU Xingyu(State Grid East Inner Mongolia Maintenance Company,Xilinhaote 026000,China)

机构地区：[1]国网蒙东电力检修分公司,内蒙古锡林浩特026000

出　　处：《通信电源技术》2020年第16期286-288,共3页Telecom Power Technology

摘　　要：在各地特高压交直流混联外送系统建设,以及其中新能源机组容量占比不断加大的情况下,会在很大程度上改变系统特性,对维持特高压直流送电形成新的挑战。基于此,通过了解特高压交直流混联电网外送电形式与特点,分析其中会遇到的交直流故障问题,在此基础上进一步探讨交直流故障对特高压直流送电存在的影响以及适宜的改善策略,为电网建设的改进提供一些参考,不断提升电网送电能力。In the construction of UHV AC/DC hybrid external transmission system and the increasing capacity of new energy units,the system characteristics will be changed to a great extent,which will form a new challenge to the maintenance of UHV DC power transmission.Based on this,through understanding the form and characteristics of UHV AC-DC hybrid power grid external power transmission,the AC and DC fault problems that will be encountered were analyzed,and the impact of AC and DC faults on UHVDC transmission and appropriate improvement strategies were discussed,so as to provide some reference for the improvement of power grid construction and continuously improve the power transmission capacity of power grid.

关 键 词：特高压直流电网 送电能力 交直流混合 运行特点 故障 

分 类 号：TM7[电气工程—电力系统及自动化]