动车组牵引控制单元DSP程序设计与实现

Design and Implementation of DSP Program for Traction Control Unit of EMU

摘要:

文中利用牵引控制单元(Traction Control Unit,TCU)中DSP微处理器运算速度快的优点,设计并实现了一套牵引控制程序。不仅包含运行于DSP上的四象限整流器、PWM逆变器的控制和调制算法程序,而且配套研发了TCU装车后运行在PC上的可在线调试算法程序的上位机软件。最终在dSPACE半实物仿真平台上,牵引控制程序成功驱动列车从车速0km/h稳步提升到320km/h,同时,用户可通过上位机软件实现实时查看牵引控制程序运行时的关键数据波形、在线修改算法参数、升级牵引控制程序的功能。实验结果验证了文中设计的牵引控制单元DSP程序及上位机软件的可用性、易用性、正确性和实时性,为后续控制算法的优化、创新和验证奠定软件基础。

Abstract:

The article uses the advantages of the DSP microprocessor in the Traction Control Unit (TCU) to design and implement a set of traction control programs. It not only includes the control and modulation algorithm programs of the four-quadrant rectifier and PWM inverter running on the DSP, but also the PC software that can be used to debug the algorithm program online and run on the PC after the TCU is installed. Finally, on the dSPACE semi-physical simulation platform, the traction control program successfully drives the train to steadily increase from 0km/h to 320km/h. At the same time, the user can view the key data waveforms of the traction control program in real time through the host computer software and modify online Algorithm parameters, upgrade the function of the traction control program. The experimental results verify the usability, ease of use, correctness and real-time performance of the traction control unit DSP program and host computer software designed in the article, and lay a software foundation for the optimization, innovation and verification of subsequent control algorithms.