As the energy crisis and environmental pollution continue to be a gradual threat, the energy saving of transmission systems has become the focus of railway vehicle research and design. Due to their high-power density and efficiency features, permanent magnet synchronous motors (PMSM) have been gradually applied in railway vehicles. To improve the efficiency of the transmission system of diesel railway vehicles, it is a good option to use PMSM as both a generator and traction motor to construct a full permanent magnet transmission system (FPMTS). Due to the application of the new FPMTS, some of the original control strategies for diesel railway vehicle transmission systems are no longer applicable. Therefore, it is necessary to adjust and improve the control strategies to meet the needs of FPMTS. We studied several key issues that affect the reliability and comfort of the vehicles. As such, this paper introduced the FPMTS control strategy, including the coordinated control strategy of the diesel and the traction motor, the two degrees of freedom (2DOF) decoupling current regulator, the maximum torque control of the standardized unit current, the wheel slip protection control, and the fault protection strategy. The experiment was carried out on the test platform and the test run of the diesel shunting locomotive equipped with the FPMTS. The results showed that the control strategy described in this paper met the operation characteristics of the FPMTS and that the control performance was superior. The study of FPMTS lays the foundation for the subsequent application of permanent magnet motors in high-powered diesel locomotives and high-speed diesel multi-units.

中文翻译：

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柴油机车永磁传动系统控制的研究与分析

随着能源危机和环境污染的持续威胁，传输系统的节能已成为铁路车辆研究和设计的重点。由于其高功率密度和效率特性，永磁同步电动机（PMSM）已逐渐应用于铁路车辆。为了提高柴油铁路车辆传动系统的效率，将PMSM既用作发电机又用作牵引电动机是一个很好的选择，以构造一个完整的永磁传动系统（FPMTS）。由于新的FPMTS的应用，柴油铁路车辆传动系统的某些原始控制策略不再适用。因此，有必要调整和改进控制策略以满足FPMTS的需求。我们研究了一些影响车辆可靠性和舒适性的关键问题。因此，本文介绍了FPMTS控制策略，包括柴油机和牵引电机的协调控制策略，两个自由度（2DOF）解耦电流调节器，标准化单位电流的最大转矩控制，车轮打滑保护控制和故障保护策略。实验是在装有FPMTS的柴油调车机车的测试平台和测试运行上进行的。结果表明，本文所描述的控制策略满足了FPMTS的运行特性，并且控制性能优越。