基于MRAS的CRH2动车组牵引电机速度估算与仿真  

Speed Estimation and Simulation of CRH2 Traction Motor Based on MRAS

作　　者：陈湘[1] CHEN Xiang(Locomotive ＆ Rolling Stock Technology Department, Hunan Vocational College of Railway, Zhuzhou 412000, China)

机构地区：[1]湖南铁路科技职业技术学院机车车辆学院,湖南株洲412000

出　　处：《南通职业大学学报》2017年第1期70-73,共4页Journal of Nantong Vocational University

摘　　要：针对CRH2型动车组牵引电机速度传感器的主要故障,提出使用转速估算电路取代速度传感器的观点,介绍了基于模型参考自适应控制(MRAS)的牵引电机速度估算的原理、仿真模型和实验电路。同时,通过仿真实验表明,该控制系统对低、中、高转速均具有良好的辨识能力和动态性能,即验证了MRAS的实用性和控制系统的准确性。In the discussion around main failures of speed sensor on traction motors of Model CRH2 EMU, the paper proposes to replace the speed sensor with speed estimation circuit. It also introduces the principle, the simulation model and the experimental circuit of the speed estimation based on MRAS. At the same time, the simulation and experimental results show that the control system has good identification capability and dynamic performance in the range which covers low, medium and high speed. It verifies the practicability of MRAS and accuracy of the control system as well.

关 键 词：速度估算 动车组牵引电机 模型参考自适应控制 仿真 

分 类 号：U260.4[机械工程—车辆工程]