直流融冰装置在南方电网的应用分析  

Analysis on the Application of DC De-Icer in China Southern Power Grid

作　　者：陈亦平[1] 刘文涛[1] 和识之[1] 张昆[1] 傅闯 

机构地区：[1]中国南方电网电力调度控制中心,广州510623 [2]南方电网科学研究院,广州510080

出　　处：《南方电网技术》2011年第4期74-77,共4页Southern Power System Technology

基　　金：国家自然科学基金资助项目"直流融冰技术应用于现代电网关键问题研究"(51177068);"十一五"国家科技支撑计划资助项目"电网抵御极端天气灾害关键技术及装置开发与应用"(2009BAA23B00)~~

摘　　要：基于2011年1月南方电网的抗冰实践,分析直流融冰装置的实际应用情况,包括南方电网直流融冰装置的配置、融冰效率和应用效果。结论为:直流融冰装置在这次抗冰实践中为实现220 kV及以上线路不倒塔、县级以上城市不停电发挥了重要的作用,但要在严重冰灾下综合发挥融冰装置作用,南方电网融冰体系尚待进一步完善。建议优化融冰方案,完善融冰过程控制,最大限度发挥现有直流融冰装置的作用;同时,适当增加融冰装置冗余配置,通过提高保线能力和融冰效率以增强保网能力,并进一步开展研究以解决地线的覆冰问题。Based on the de-icing practice of China Southern Power Grid（CSG） in January 2011,the application of DC de-icers is analyzed,including the allocation of de-icers,and the efficiency and effect of de-icing.The paper concludes that the de-icing devices have played an important role in keeping the 220 kV transmission towers away from falling down and providing power supply to the county and above level cities;but that these devices be able to play a full role under severe ice-storm depends on the further perfection of CSG’s de-icing system.The paper suggests to optimize de-icing schedule,to perfect the process control of de-icing,and thus to make the DC de-icers play role in maximum.Meanwhile,the redundance of these de-icers should be properly increased,and the ability to protect networks should be enhanced by higher line-protecting ability and de-icing efficiency.Finally,it is suggested to further study the problem of ground lines iced.

关 键 词：电网 冰灾 直流融冰装置 保线能力 保网能力 

分 类 号：TM755[电气工程—电力系统及自动化]