城轨列车控制器程控电源测试分析

Test and Analysis of Program Controlled Power Supply for Urban Rail

摘要: 城轨列车在一段时间的运行之后，车上控制单元必须进行检修。而目前检修设备使用年限长，技术水平比较陈旧，故障率高，维护成本高。因此通过设计程控电源技术方案、在不同工况下分析测试结果分析程控电源可调范围、精度以及稳定性并进行创新。此外，研究城轨列车控制器专用测试台程控电源测试技术可以用来验证城轨控制单元的各种性能及逻辑动作是否正确，测试分析原城轨列车控制器专用测试台的实验工况以及在每种工况下测试电源输出电压、电流情况。因此，对于控制器的测试具有非常重大的现实意义。

Abstract: After a period of operation, the vehicle control unit must be overhauled. At present, the mainten-ance equipment has long service life. The technology level is outdated, with high failure rate and high maintenance cost. Therefore, the range, accuracy and stability of the programmable power supply can be analyzed and make some innovations through designing the programmable power supply technology scheme and analyzing the test results under different working conditions. In addition, the program control power test technology for the special test table of the city rail train controller can be used to verify the performance of the urban rail control unit and the correctness of the logic action. It can also be used to test and analyze the experimental conditions of the special test platform of the original urban rail train controller, and to test the output voltage and current of the power supply under every working condition. Therefore, it has great practical significance for the test of controller.