Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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西北首套直流融冰装置工程启动评价分析

来源:电工电气发布时间:2016-08-01 13:01 浏览次数:9
西北首套直流融冰装置工程启动评价分析
 
刘巍,崔力心,郭文科,陈仕彬,郝如海,倪赛赛
(国网甘肃省电力公司电力科学研究院,甘肃 兰州 730050)
 
    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 kV 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。
    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
    中图分类号:TM422     文献标识码:A      文章编号:1007-3175(2016)07-0034-04
 
Evaluation Analysis of First DC-Based Deicing
Device in Northwest China
 
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)
 
    Abstract: DC-based deicing devices which were put into operation in Longnan of Gansu province greatly enhanced the anti-icing capability in 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 of the current power quality. Meanwhile, the rectifier was unloaded, the electric brake was turned on in the process of starting the equipment and the reason of protection mal- operation was analyzed rapidly. This paper gave the measures of flashy flow tripping operation, which effectively reduced the number of tripping of the switch in the transformer substation, shortened the outage time and improved the reliability of power supply.
    Key words: fixed DC-based deicing device; deicing principle; power quality; acceleration after reclosing; ice damage; application effect
 
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