电气绝缘电压寿命指数N值的一种最小二乘估计方法  

The Minimum Square Method for the Voltage Endurance Coefficient of Electrical Insulation

作　　者：李忠华[1] 陈宇[2] 

机构地区：[1]西安交通大学 [2]哈尔滨理工大学

出　　处：《高电压技术》1997年第1期3-6,共4页High Voltage Engineering

摘　　要：讨论了二元Ｗｅｉｂｕｌ分布于电老化定律在评价绝缘电老化特性时的等价性，同时给出了应用最小二乘法对二元Ｗｅｉｂｕｌ分布参数进行估计从而获得电压寿命指数Ｎ值的方法。The voltage endurance coefficient is an improtant parameter for discribing the electrical aging characteristics of insulation. In the paper, the equality of the two dimensional Weibull distribution and the law of electrical aging is discussed. At the same time, a method for estimation of the voltage endurance coefficient is presented based on the minimum square estimation of two dimensional Weibull distribution paramters. By this method, the shortcome of traditional method is overcame. At the last, an example of application is persented for demonstation.

关 键 词：绝缘材料 电气绝缘 电压寿命 

分 类 号：TM210.7[一般工业技术—材料科学与工程]