Title :
Analysis and control of a moving coil electrodynamic actuator
Author :
Macdonald, H.M. ; Green, T.C. ; Williams, B.W.
Author_Institution :
Dept. of Comput., Heriot-Watt Univ., Edinburgh, UK
Abstract :
A central system is proposed that reduces the total harmonic distortion present in the acceleration of the actuator of a vibration testing system. Experimental data show that the armature resonance significantly amplifies the harmonic content of the excitation signal. A linear model, verified by experiment, is used to produce a pole placement design that flattens the frequency response and reduces distortion of the mechanical output. Simulation and tests using a DSP-based controller have shown that this control strategy is viable
Keywords :
control system analysis; electric actuators; frequency response; poles and zeros; vibration control; DSP-based controller; armature resonance; excitation signal; frequency response; linear model; moving coil electrodynamic actuator; pole placement design; total harmonic distortion reduction; vibration testing system; Actuators; Coils; Electrodynamics; Frequency response; Life estimation; Resonance; State feedback; System testing; Total harmonic distortion; Vibrations;
Conference_Titel :
Industrial Electronics, Control, and Instrumentation, 1993. Proceedings of the IECON '93., International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-0891-3
DOI :
10.1109/IECON.1993.339415
