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Speed and Load Torque Observer Application in High-Speed Train Electric Drive

机译:速度和转矩观测器在高速列车电气传动中的应用

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This paper presents an application of induction motor mechanical speed and load torque observers in high-speed train drives. The observers are applied for a 1.2-MW electric drive with an induction motor. The goal of using such observers is to utilize computed variables for diagnostic purposes of speed sensors and torque transmission system. The concept of diagnostic system is presented in this paper, and proper criteria are proposed. The suggested system is designed to work without a speed sensor in the case of existing sensor faults. Monitored motor load torque is used to limit the maximum motor torque in the case of existing problems in the gearbox. The results of simulation and experimental investigations for a 1.2-MW induction motor drive are presented.
机译:本文介绍了感应电动机的机械速度和负载转矩观测器在高速列车驱动器中的应用。观察者申请了带有感应电动机的1.2兆瓦电驱动器。使用此类观察器的目的是将计算出的变量用于速度传感器和扭矩传输系统的诊断目的。提出了诊断系统的概念,并提出了适当的标准。在存在传感器故障的情况下,建议的系统设计为在没有速度传感器的情况下工作。在变速箱中存在问题的情况下,监视的电动机负载转矩用于限制最大电动机转矩。给出了1.2兆瓦感应电动机驱动器的仿真和实验研究结果。

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