牵引控制系统中异步电机定子绕组发生故障，导致定子绕组不对称连接，严重影响动车组(EMU)牵引控制系统的安全稳定运行。针对牵引控制系统中异步电机定子一相绕组缺相故障，考虑端电压约束条件，推导电机一相缺相的数学模型，并基于硬件在环(HIL)仿真试验平台对数学模型进行验证。详细阐述了HIL测试平台的系统框架，设计实现方法，软硬件连接配置。将Xilinx软件下搭建的电机缺相数学模型下载至dSPACE仿真机上运行，与牵引控制单元（TCU）连接，进行HIL仿真，通过检测算法对电机缺相故障作出判断与处理。结果表明该仿真测试平台的有效性，可提供接近真实的测试环境，为牵引控制系统电机缺相故障诊断与算法功能开发提供了理论基础和设计依据。

When the stator winding of asynchronous motor fails in the traction control system, the stator winding is asymmetrically connected, which seriously affects the safe and stable operation of the traction control system of electric locomotive. Aiming at the open phase of the stator phase winding of the asynchronous motor in the traction control system, considering the terminal voltage constraint, the mathematical model of the motor open phase circuit is derived, and the mathematical model is verified based on the hardware-in-the-loop (HIL) simulation test platform. The system framework, design and implementation method, hardware and software connection configuration of HIL test platform are described in detail. The motor open phase mathematical model built under Xilinx software is downloaded to the dSPACE simulator for operation, connected with the traction control unit (TCU), and the HIL simulation experiment is carried out. The motor open phase is judged and handled through the detection algorithm. The experimental results verify the effectiveness of the simulation test platform. In a near real test environment, a theoretical basis and design basis for the motor open phase diagnosis and algorithm function development of the traction control system is provided.