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标题：同步控制策略在高速列车牵引电机中的应用 |
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作者：董凡，方攸同，黄晓艳，等 |
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| 2016年第8期 访问次数：253次 |
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摘要：高速列车采用永磁同步电机作为牵引电机以后，每台电机由独立的逆变器供电，为使个别轮对发生"空转"时系统能够快速响应，有必要对同步控制策略的应用进行研究。本文分析比较了不同同步控制策略的特点，提出了适用于4台永磁同步电机同步控制的虚拟主轴和偏差耦合控制方案，在LabVIEW中搭建了仿真模型。利用仿真模型分析了系统在单台电机负载突然减小的情况下电机转速以及电机间转速差的变化情况，讨论了一些参数对控制策略的影响。对比分析了虚拟主轴和偏差耦合两种方案在大功率永磁同步电机同步控制中的性能与各自特点。仿真结果证明高铁永磁牵引电机采用合适的同步控制策略后，当个别轮对出现空转等状况时，受扰动电机的速度突变被限制在较小范围内，危害减小。
关键词：永磁同步电机；虚拟主轴；偏差耦合：LabVIEW
Abstract: When using permanent magnet synchronous motors (PMSM) as traction motors, each motor will be powered by an individual inverter. In order to make the traction system have a quick response when one wheel set idles, synchronization control techniques should be researched. Different synchronization control techniques were analyzed, electronic virtual line shafting (EVLS) control and relative coupling control were applied to a four PMSMs system, simulation models were built in Labview. Using these models, system performance was analyzed when one motor's load suddenly decreased. The effects of several parameters were discussed. Finally, the characteristics of EVLS and relative coupling control were analyzed for synchronization control of high power PMSMs and both advantages and disadvantages were discussed. The results indicate that when applying proper synchronization control technique to the traction PMSMs, after one wheel set idles, its traction motor's speed change will be limited to a very small degree.
Key words: permanent magnet synchronous motor; electronic virtual line shafting control; relative coupling control; LabVIEW |
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