Title :
Vibration suppression control for electrical discharge machine by using relative displacement and velocity feed back
Author :
Imagi, A. ; Iezawa, M. ; Tomisawa, M. ; Taneda, A. ; Kanaya, T. ; Akamatsu, K.
Author_Institution :
Adv. Technol. R&D Center, Mitsubishi Electr. Corp., Hyogo, Japan
Abstract :
In order to suppress the instability in a fully-closed-loop of the positioning servo, we proposed a new controller which feeds back the relative displacement and the relative velocity from the motor to the positioning table. A stability condition is investigated in the 2-DOF model that is the basis of the fully-closed-loop system, and the precise effect of the controller is examined in a 4-DOF model of an actual electrical discharge machine. Operation of an actual machining test clarifies the effectiveness of the proposed controller
Keywords :
closed loop systems; control system synthesis; feedback; position control; servomechanisms; spark machining; stability; vibration control; 2-DOF model; 4-DOF model; Y-axis driving system; controller; electrical discharge machine; fully-closed-loop; machining test; positioning servo; positioning table; relative displacement feedback; stability condition; velocity feedback; vibration suppression control; Cities and towns; Control systems; Displacement control; Feeds; Force control; Machining; Servomechanisms; Servomotors; Velocity control; Vibration control;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1997. IECON 97. 23rd International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-3932-0
DOI :
10.1109/IECON.1997.670907
