大型水轮发电机定子绕组内部故障计算的简化方法

Simplification in the Analysis of the Faults Inside the Stator Windings of Large Hydrogenerators

用多回路法分析大型水轮发电机定子绕组内部故障时,将面临计算量大的困难。本文探索了两种简化计算方法,即降低谐波计算次数和阻尼绕组近似处理。经过实际应用和试验验证,证明了本文提出的方法既能有效地简化计算,又能保证一定的计算精度。

Using the Multi loop Method to analyse the faults inside the stator windings of large hydro-generators will face difficulties of large amount of calculation. In this paper,two simplification methods- decreasing the order of calculated harmonics and approximately treating the damper windings,are proposed and investigated.The meth- ods are proved to be effective and accurate enough to be used in engineering, by the practical application and the experimental verification.