[Objective] In recent years, secondary segmented flux-switching permanent magnet linear motor (FSPMLM) has demonstrated significant application potential in urban rail transit traction systems, owing to their simple structure, high efficiency, high power density, and low manufacturing cost. To verify the effectiveness of the traction control strategy for this type of motor under real-world power supply conditions, this paper conducts a comprehensive study involving system modeling, simulation, and experimental performance evaluation. [Methods] Firstly, a power supply model that incorporated dynamic voltage fluctuations was developed to accurately simulate the operating environment of urban rail DC traction systems. This model reflectd the typical voltage variations encountered during actual operation. Next, based on the results of finite element analysis, the d-q axis mathematical model of the FSPMLM was established. A magnetic field-oriented control strategy was then designed to achieve precise closed-loop speed control. Finally, the entire system was modeled and validated using Matlab/Simulink simulation tools. Additionally, a low-power experimental platform was constructed, based on a physical prototype, to obtain real measurement data and validate the simulation outcomes by comparing key performance indicators. [Results] Both the simulation and experimental results showed consistent findings: the motor system achieved high control accuracy and rapid dynamic response under conditions of sudden speed variation. It also maintained low thrust fluctuation, strong system stability, and excellent dynamic and steady-state performance. These results confirmed the reliability and responsiveness of the proposed control strategy. [Conclusion] This study confirms that the secondary segmented FSPMLM, when equipped with a vector control strategy, can achieve efficient and stable speed regulation under the voltage conditions typical of urban subway power supply systems. The approach offers a cost-effective, technically sound solution with strong engineering practicality and wide application potential in modern electrified traction systems for urban rail transit.