Based on the scheme of frequency converter driving loading motor which was coupled to gear box and companion motor,the Floyd algorithm was applied to optimize the loading motor pole and transmission ratio of the gear box.Meanwhile,the double power and overload capacity of double three-phase motor were utilized to expand the test ability and reduce the test motors.In order to meet the loading requirements,the master-slave technology was used to control the torque and speed at the end.%以逆变器驱动加载电机串轴耦合变速齿轮箱和陪试电机为基本结构,运用运筹学最短路径问题的Floyd算法,优化配置加载电机极数及其与变速齿轮箱变速比.利用双三相电机的双功率和过载能力,扩展试验能力,减少陪试电机数量.应用直接转矩主从控制技术,实现双三相异步电机转矩和转速控制,满足试验加载需求.
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