西北首套直流融冰装置工程启动评价分析  

Evaluation Analysis of First DC-Based Deicing Device in Northwest China

作　　者：刘巍[1] 崔力心[1] 郭文科[1] 陈仕彬[1] 郝如海 倪赛赛[1] LIU Wei;CUI Li-xin;GUO Wen-ke;CHEN Shi-bin;HAO Ru-hai;NI Sai-sai(State Grid Gansu Electric Power Research Institute, Lanzhou 730050, China)

机构地区：[1]国网甘肃省电力公司电力科学研究院,甘肃兰州730050

出　　处：《电工电气》2016年第7期34-37,40,共5页Electrotechnics Electric

摘　　要：甘肃陇南地区直流融冰装置的建成投运,极大地增强了该地区线路抗覆冰能力。应用Matlab软件对330 k V晒都线路搭建仿真模型进行仿真分析和现场电能质量测试结果验证;同时在现场启动过程中,对整流变空载投切,线路重合闸后加速保护误动原因分析,并给出了解决涌流跳闸措施,有效减少了变电站整流变装置开关跳闸次数,缩短了停电时间,提高了晒都线供电可靠性。DC-based deicing devices which were put into operation in Longnan of Gansu province greatly enhanced the anti-icing capabilityin the area. The software Matlab was used to carry out simulation analysis for the model of 33 0 kV Shaidu lines and to verify the test results ofthe current power quality. Meanwhile, the rectifier was unloaded, the electric brake was turned on in the process of starting the equipment andthe reason of protection mal-operation was analyzed rapidly. This paper gave the measures of flashy flow tripping operation, which effectivelyreduced the number of tripping of the switch in the transformer substation, shortened the outage time and improved the reliability of power supply.

关 键 词：固定式直流融冰装置 融冰原理 电能质量 重合闸后加速 冰灾 应用效果 

分 类 号：TM752[电气工程—电力系统及自动化]