科研之友
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摘要
In order to deal with ice damages and prevent towers and conductors in power grid from collapsing and being broken, it is necessary to develop DC deicer. Calculating and analyzing tests in an artificial climate chamber, and simulating the conductor deicing parameters, we proposed the DC deicing technical scheme for typical transmission lines at various voltage levels in China. According to the results of studying DC deicing key parameter, the particularity of deicing processes, and the practical situation of substations, we proposed two economical and practical topological structures of DC deicer, i.e, a 12-pulse DC deicer with a dedicated converter transformer and the other 6-pulse one without dedicated converter transformer. Moreover, prototypes of two types of de-icier were developed, and their field tests were performed. Based on the early application results, the deicers was popularized and applied in China, especially in China Southern Power Grid (CSG). The application during the icing seasons of 2009-2012 shows that the capacity of power gird withstanding ice calamity has been improved significantly by applying the DC deicing technology.
- 出版日期2013-3
- 单位南方电网科学研究院有限责任公司; 华南理工大学
