【作者】 孙永鑫； 满宇光； 张伟；

【Author】 SUN Yongxin;MAN Yuguang;ZHANG Wei;State Key Laboratory of Hydropower Equipment;Harbin Institute of Large Electric Machinery;

【机构】 水利发电设备国家重点实验室； 哈尔滨大电机研究所；

【摘要】 随着水电机组海拔高度的增加,高海拔条件下定子线棒的防晕设计研究愈发重要。本文介绍了高海拔防晕研究的技术特点,通过对巴申定律的推导,得到海拔与最小放电电压的修正系数,并对该系数与相关国标进行了比较。为降低线棒及绕组端部电场,对单支线棒和多支绕组的防晕影响因素进行了系统研究,指出了防晕各参数的优化思路。该项研究指明了高海拔下单支线棒的防晕的设计思路,对高海拔下定子线棒的防晕设计提供有益指导。更多还原

【Abstract】 The designing of generator stator bar become more difficult with the altitude of hydroelectric unit higher.This paper introduces the characteristics of high altitude technical anti-corona.Paschen is used to derivate a correction coefficient between altitude and minimum discharge voltage,and compared this coefficient with China Standard.In order to lower electrical field of bar and end parts,the influencing factors of anti-corona for single bar and winding bars had to be system studied,then get designing optimization of every anti-corona parameters.The results point out the design thought for anti-corona of single stator bar on high altitude,and this have an advantage guide for designing anti-corona stator bar.更多还原