双绕组发电机交直流同时突然短路的电磁转矩  

Electromagnetic torques of double-winding AC-DC generators after sudden simultaneous AC and DC sides short circuits

作　　者：孙俊忠[1] 王善铭[1] 邱阿瑞[1] 姜海龙[2] 

机构地区：[1]清华大学电机工程与应用电子技术系,北京100084 [2]海军潜艇学院,山东青岛266071

出　　处：《清华大学学报（自然科学版）》2006年第7期1212-1215,共4页Journal of Tsinghua University(Science and Technology)

基　　金：中国博士后基金资助项目(2005037074)

摘　　要：为了能在设计阶段预测双绕组发电机交直流同时突然短路的电磁转矩,参照三相电机突然短路的分析方法,给出了交变转矩和平均转矩以及总电磁转矩的解析式,并通过电路模型仿真的方法进行了间接验证。该论文所得双绕组发电机交直流同时突然短路电磁转矩的计算式特别适合于工程应用;提出的分析方法也可用于双绕组发电机直流侧短路等电磁转矩的分析。Abstract： Shorts in double-winding AC-DC generators were modeled by analogy to an ordinary 3-phase synchronous generator to predict the electromagnetic torque of a double-winding generator after a sudden AC and DC sides short circuit in the design stage. The double-winding generators were analyzed using a method for analyzing the electromagnetic torque after a sudden short circuit in a 3-phase synchronous generator. The analysis gives analytical expressions for the alternating and unidirectional electromagnetic torques as well as the total electromagnetic torque after simultanous shorts in both sides of a double-winding AC-DC generator. The expression and simulations which are suitable for engineering applications were verified by circuit model simulations. The method can also be used to analyze electromagnetic torques in double-winding AC-DC generators after shorts or just DC side.

关 键 词：电机电工 双绕组发电机 突然短路 电磁转矩 

分 类 号：TM341[电气工程—电机]