Novel bidirectional rotary proportional actuator for electrohydraulic rotary valves

作者：Cui Jian; Ding Fan; Li Qipeng^*

来源：IEEE Transactions on Magnetics, 2007, 43(7): 3254-3258.

DOI：10.1109/TMAG.2007.894214

• electrohydraulic rotary valves
• finite-element analysis
• high pressure
• permanent magnets
• rotary electromagnetic actuator

This paper presents a bidirectional rotary actuator for electrohydraulic rotary valves using permanent-magnet rotor with output torques and angular displacements proportional to the excitation currents. Finite-element analysis provides the static characteristics of the actuator and the analysis is coupled to a nonlinear time domain simulation to determine the dynamic performance. The measured and simulated results agree well and show that the actuator can produce torques up to +/- 0.65 Nm, linear angular displacements of +/- 8 degrees with hysteresis less than 4%, and frequency bandwidth (-3 dB) about 190 Hz.

• 出版日期2007-7
• 单位浙江大学