根据双绕组发电机与普通三相同步发电机的内在关系，参照三相电机突然短路电磁转矩的分析方法，进行了双绕组发电机交流侧带负载时直流侧突然短路的电磁转矩解析分析，得到了简明的交变转矩、平均转矩及总电磁转矩的解析式，并通过试验进行了验证。所得双绕组发电机交流侧带负载时直流侧突然短路电磁转矩的计算式简明、准确、物理意义明确，特别适合于工程应用。

Based on the essential relation between a 3/12-phase double-winding AC-DC generator and an ordinary 3-phase synchronous generator, according to the method of analyzing the electromagnetic torque of a 3-phase synchronous generator under sudden short circuit, the electromagnetic torque of the 3-phase AC winding loaded double-winding AC-DC generator under DC side sudden short circuit is studied. The concise analytical expressions for alternating, unidirectional and total electromagnetic torques are obtained, which are verified by experiments. These expressions are concise and precise and have clear physical meaning, so they are especially suitable for engineering applications.