摘要：以全电飞机刹车用双余度无刷直流电动机为研究对象，借助Ansoft软件对电机磁路进行分析计算，优化结构参数，并对其进行性能仿真。重点论述了确保无刷余度电机性能最优的调试关键技术。经过样机性能测试与设计相符，满足使用要求。
关键词：双余度无刷直流电动机；有限元分析；性能仿真；调试关键技术

Abstract:  A study of dual redundant brushless DC motor in electric aircraft braking system was given. Based on Ansoft, the motor magnetic circuit was analyzed. The structure parameters were optimized. With the mathematical model of brushless DC motor, the simulation performance was shown. The key technologies of Commutation were analyzed. As shown of experiment, the design is reasonable and correct.
Key words:  dual redundant brushless DC motor; finite element analysis; performance simulation ; key developing technologies