摘要：飞机上的交流电源多采用三级式无刷交流同步发电机，它由永磁副励磁机、交流励磁机和主发电机组成。针对飞机发电系统的稳态响应以及动态性能的仿真需求，和制造商提供的数据不能直接带入同步发电机数学模型的问题，通过研究同步发电机的运行原理，提出了在dq0坐标系下建立飞机同步发电机的动态数学模型的方法，通过对仿真模型所需参数与制造商提供的数据的具体意义与相互关系的研究，提出了由制造商所提供的数据向仿真模型所需参数的换算方法。利用SABER仿真软件建立飞机三级同步发电机的动态数学模型，填入由制造商所提供的数据计算出的仿真模型所需参数，结合调压器模型得到三级发电机的部分动态仿真结果，结果与理论分析具有很好的一致性，为飞机电源系统的设计提供了一个有效的工具。

关键词：同步发电机；仿真模型；制造商提供的数据；参数换算
Abstract: Aircraft electric sources normally take the form of three-stage brushless synchronous generators which consist of a permanent magnet pilot exciter, an AC exciter and a main generator. To meet the simulation demands of the steady-state response and dynamic performance of the aircraft electric power system, a method guided by the principle of generator operation was proposed to establish the dynamic mathematical model of the synchronous generator in dq0 coordinate system. After understanding the meanings of both parameters required by simulation model and those provided by manufactures and the relationship between them, an approach with which usable parameters can be obtained was also presented to resolve problems caused by the fact that data provided by manufacturers usually cannot be directly utilized by this generator model. The dynamic mathematical model of a three-stage brushless synchronous generator was built in Saber with converted data. The simulation result is in consistent with theoretical analysis combining with partial simulation results derived from the voltage regulator model. This model provides an effective tool for aircraft electric power system design.

Key words: synchronous generator; simulation model; parameters provided by manufacture; parameter conversion