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基于多仿真器的牵引传动系统实时仿真研究
作者:武明康  郭希铮     唐一果 
单位:北京交通大学 电气工程学院, 北京 100044
关键词:牵引传动系统  多仿真器实时仿真  ADC建模  dSPACE实时仿真器  硬件在回路 
分类号:
出版年·卷·期(页码):2019·41·第5期(46-54)
摘要:

硬件在回路实时仿真可以有效地对高速列车牵引传动系统控制器进行测试,特别是在极限、故障条件下各种工况的测试,以提高控制算法验证效率。以高速列车牵引传动系统为研究对象,建立基于dSPACE的多仿真器硬件在回路仿真实验系统。首先,介绍高速列车牵引传动系统的主要构成,研究系统模型划分方法;其次,建立基于ADC方法的电力电子变流器数学模型,通过离线仿真验证模型的有效性;牵引传动系统小步长部分的数学模型通过FPGA实现,使该部分的仿真步长达到纳秒级,提高实时仿真的准确性。实验结果表明:实时仿真系统的有效性和可信度较高,可以有效测试高速列车牵引传统系统控制器的性能,加快控制算法的验证。

The traction control unit of the electrical traction system of high speed train can be tested in the hardware-in-the-loop (HIL) real-time simulation, which can simulate the extreme and fault conditions and speed up the verification process of control algorithms.based on the case study of the traction drive system of high-speed train, and the dSPACE real-time simulator, the multiple-simulator, multiple-simulation step of HIL real-time simulation system was firstly established. Secondly, the real-time model of power electronic converter (PEC) was studied based on associated discrete circuit (ADC) method, in which the matrix dimension of the complex power-electronics system was decreased by the state variables decoupling method. Finally, the real-time simulation models of electrical traction system were realized by CPU+FPGA, in which the PEC models were solved in FPGA with a fix 10ns time-step, improving the accuracy of real-time simulation. The experimental results prove the validity and reliability of the real-time simulation system,  which can effectively test the performance of the traction drive system controller of high-speed train   and accelerate the verification of the control algorithm.

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