输电线路覆冰阶段性防御策略(英文)  

De-Icing Strategies in Different Stages for Transmission Lines

作　　者：申屠刚[1] 程极盛[2] 江道灼[1] 

机构地区：[1]浙江大学电气工程学院,浙江省杭州市310027 [2]浙江省电力公司,浙江省杭州市310007

出　　处：《电网技术》2009年第15期100-104,共5页Power System Technology

摘　　要：根据覆冰形成和发展的物理过程,提出了冰灾发展过程的 3 个阶段理论:迎风面覆冰阶段、冰壳覆冰阶段和冰灾阶段,分析了各阶段的特点,并提出了冰冻前调度潮流抗冰和冰冻后利用直流电源融冰的构想。设计了冰灾综合防御框架,并介绍了构成框架的预警信息系统的功能,提出了融冰装置设计的要求和融冰过程中要遵循的 3 个约束条件。The overview of ice coating disaster on transmission lines can be summerized into 3 stages： Ⅰ, ice accumulating on the windward side of the conductors; Ⅱ, ice sleeve; Ⅲ, ice damage. This paper has analyzed the characteristics of the three stages and the technologies of on-load network de-icing （ONDI） and HVDC-based de-icing to prevent the damage caused by ice accumulation. A framework for ice disaster prevention is designed and the function of the alert information infrastructure is introduced. The de-icer installments, which need to be designed and operated under certain constraint conditions are described at the end of this paper.

关 键 词：约束条件 防御框架 高压直流 覆冰 信息体系结构 融冰 输电线路 特高压 

分 类 号：TM7[电气工程—电力系统及自动化]