异步电机最大转矩电流比控制方法研究  

Research on Maximum Torque per Current Control of Asynchronous Motor

作　　者：俞荣凯[1] 赵坤[1] 游小杰[1] 邵闻博[1] 

机构地区：[1]北京交通大学,北京100044

出　　处：《电力电子技术》2008年第7期33-34,61,共3页Power Electronics

摘　　要：最大转矩电流比控制技术可以使同样负载下的电机定子电流达到最小,从而减小电机和逆变器的损耗,提高整个系统的效率,同时也减小逆变器的电流应力,提高电机输出转矩的能力。主要对基于转子磁场定向的异步电机最大转矩电流比控制进行了分析讨论,并建立了数学模型。仿真和实验结果表明,设计的控制方案能够在轻载下减小定子电流,提高电机效率。Under the maximum torque per current control strategy,the stator current of asynchronous motor can be at its minimum point with respect to any given power, so it decreases the energy loss of the motor and the inverter which links to the motor,and thus it increases the efficiency of the whole system.The maximal torque per current control strategy of asynchronous motor based on rotor flux-oriented control are analyzed and experimented.The result indicates this designation can diminish the stator current and improve the motor efficiency.

关 键 词：逆变器 异步电机 矢量控制 转矩/转子磁链 

分 类 号：TM464[电气工程—电器]