Title :
Control of mechanical vibrations in DC machines
Author :
Foggia, A. ; Maestre, J.F. ; Sabonnadiere, J.C. ; Reyne, G. ; Imhoff, J.F.
Author_Institution :
Lab. d´´Electrotech. de Grenoble, St. Martin d´´Heres, France
Abstract :
A method of reducing mechanical vibrations generated in a DC machine is presented. The method consists of an addition of ampere turns to the usual excitation and armature currents. Extra coils have been wound on the main excitation poles and when properly supplied, the vibration level at different points on the outer surface of the motor is significantly reduced. It appears that for a given frequency, the rate of reduction may be as high as 30 dB without modifying other frequencies.<>
Keywords :
DC machines; machine control; vibration control; DC machine; active compensation; ampere turns; armature currents; excitation currents; mechanical vibrations control; AC generators; Coils; DC generators; DC machines; Frequency; Leg; Mechanical variables measurement; Vibration control; Vibration measurement; Wounds;
Conference_Titel :
Industry Applications Society Annual Meeting, 1990., Conference Record of the 1990 IEEE
Conference_Location :
Seattle, WA, USA
Print_ISBN :
0-87942-553-9
DOI :
10.1109/IAS.1990.152170
