摘要
针对地铁电力牵引特性,建立起直接转矩控制系统的仿真模型。恒转矩、恒功率和自然特性区采用不同的控制策略,为实现三个阶段不同控制方法间的平滑过渡,采用了速度施密特调节器以实现段切换代替点切换。论文应用Matlab/Simulink软件对系统进行了仿真研究,模拟了地铁牵引电机在运行过程中牵引和突变负载工况,仿真结果表明系统具有良好的动、静态性能,满足机车运行的要求。仿真结果验证了控制方法的有效性和正确性。
A simulation model of DTC system was built according to the characteristics of metro traction motor. Different control strategies are adopted in different operation sections in DTC system. In order to better achieve the transition of the different control methods the constant torque, constant power and the natural characteristics at three stages, Schmidt speed regulator is used to achieve the paragraph instead of point switch. Traction and mutations load operation mode of traction motor is simulated in Matlab/Simulink, simulation results show that the system have good steady and dynamic performance, meet the requirement of locomotive operation. The validity and correctness of the control method is proved.
出处
《自动化与仪器仪表》
2012年第6期25-27,共3页
Automation & Instrumentation
基金
甘肃省科技计划资助项目:编号1112RJZA043
关键词
牵引电机特性
直接转矩控制
仿真研究
characteristics of traction motor
direct torque control （DTC）
simulation research
