RESEARCH ON AN ELECTRIC LOADING SYSTEM WITHOUT INERTIA DISK FOR ACTUATORS

摘要：

This paper presents an electric loading system without inertia disk for actuators that adopts a torque-loading structure with disc permanent magnet synchronous torque motor, which connects directly with the under-test actuator, eliminating damping of the inertia disk.It employs Wheatstone bridge circuit for measuring torque, and sticks strain gauges directly on output shaft of the torque motor.It also uses SVPWM for torque control.The results of step response simulation show that the loading system, without bulky energy conversion device, realizes any transient current amplitude to control, through the use of sine wave current for driving, reduces torque ripple significantly, also inhibits effectively excess force in loading process.It is simple in structure, and improves model accuracy.Vector control improves dynamic quality and control precision of the loading system.Besides, it introduces hardware design of measurement and software design of vector control of the loading system.

关键词： Vector control Electric loading system Actuator Disc permanent magnet synchronous torque motor SVPWM

作者: SI BINQIANG ZHU JIHONG XUE XIAOHONG LI XINYUAN

作者单位: Department of Computer Science & Technology,Tsinghua University Department of Computer Science &Technology,Tsinghua University

会议类型: 国际会议

会议名称: 3rd International Conference on Mechanical and Electrical Technology(ICMET2011) (2011第三届机械与电气技术国际会议)

会议地点: 大连

会议语种:英文

页码: 395-402

在线出版日期: 2011-08-26（万方平台首次上网日期，不代表论文的发表时间）