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直线同步电机牵引系统实物在环实时仿真算法

, PP. 363-369

Keywords: 磁浮交通,实物在环实时仿真,直线同步电机,三电平变流器,模型解耦,补偿算法

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Abstract:

根据大功率变流器从线路两端并联为长定子直线同步电机供电的特点,建立了三电平大功率交-直-交变流器的实时仿真数学模型,提出了对整流器、逆变器、长定子直线同步电机系统各子系统相互解耦的方法,解决了混合、非线性、变因果、变结构的牵引系统的实时仿真问题。在仿真系统硬件上增设了高速PWM采集板卡,软件上采用基于磁链相等原理的补偿算法,解决了定步长采样误差造成的非特征谐波等问题,实现了以100μs的仿真步长对高速磁浮长定子直线同步电机牵引系统进行实时仿真,为高速磁浮交通牵引系统控制器的检验以及系统的安全运行提供了重要基础。

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