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Power balance control in fixed joint multi-motor system
Author(s): 
Pages: 398-401,407
Year: Issue:  3
Journal: Electric Machines and Control

Keyword:  直接转矩控制功率平衡多电机拖动硬轴联结;
Abstract: 针对硬轴联结多台异步电动机之间存在强制同步、转矩耦合以及性能偏差等问题,提出一种基于多DTC和在线参数辨识相结合的硬轴联结多电机功率平衡控制方法.构造速度和转矩平衡双闭环控制系统,既满足对整个系统进行速度控制,又避免个别电机因载荷不均衡而烧损.在线辨识器用于准确识别电机参数的变化,提高DTC控制精度及其实用性.在Matlab//Simulink环境下,建立硬轴联结多电机速度及功率平衡控制系统模型,选择电机参数一致正常、参数异常以及交流供电故障等几种常见状况,在高速、低速、加速、减速和正负转矩等条件下.仿真验证了所提方法的有效性.
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