基于变频法的发电机转子绕组匝间短路检测方法的研究及应用  

Research and Application of Generator Rotor Winding Interturn Short Circuit Detection Method Based on Frequency Conversion Method

作　　者：于霄 吕泓瑄 孙凯 Yu Xiao;Lv Hongxuan;Sun Kai(Jiangsu Nuclear Power Co.,Ltd,Lianyungang 222042,China)

机构地区：[1]江苏核电有限公司,连云港222042

出　　处：《智能建筑电气技术》2023年第4期61-63,74,共4页Electrical Technology of Intelligent Buildings

摘　　要：目前国内存在发电机转子绕组匝间短路检测手段匮乏,现有试验方法下交流阻抗值误差较大的问题,本文从理论及应用两方面全面地解析了使用“变频”法测量交流阻抗值的方式,实现了一种试验风险低、数据误差小的试验方法,极大地提升了试验人员对于发电机转子绕组匝间短路的判断水平,为行业内发电机的转子绕组匝间短路故障判断提供了一种全新的思路。At present,there is a lack of detection methods for inter turn short circuits in generator rotor windings in China,and there is a problem of large errors in AC impedance values under existing testing methods.This article comprehensively analyzes the use of the“variable frequency”method to measure AC impedance values from both theoretical and practical aspects,achieving a low risk and small data error testing method,greatly improving the judgment level of testers for inter turn short circuits in generator rotor windings,This provides a new approach for diagnosing inter turn short circuit faults in rotor windings of generators in the industry.

关 键 词：发电机转子 匝间短路 交流阻抗 变频 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]