damper winding

damper winding

[′dam·pər ‚wīnd·iŋ]
(electricity)
A winding consisting of several conducting bars on the field poles of a synchronous machine, short-circuited by conducting rings or plates at their ends, and used to prevent pulsating variations of the position or magnitude of the magnetic field linking the poles. Also known as amortisseur winding.
References in periodicals archive ?
[[PSI].sub.sd], [[PSI].sub.sg] are the orthogonal axes flux of the stator; [[PSI].sub.f] is rotor excitation flux; [[PSI].sub.D], [[PSI].sub.Q] are orthogonal axes flux of the damping winding; [i.sub.d], [i.sub.q] are the orthogonal axes currents of the stator; [i.sub.f] is rotor excitation current; [i.sub.D], [i.sub.Q] are orthogonal axes currents of damper winding. [L.sub.s[sigma]], [L.sub.f[sigma]], [L.sub.D[sigma]], and [L.sub.Q[sigma]] are leakage inductances, respectively, for stator winding, field winding, and orthogonal axis damper winding.
Considered SG is assumed to have three stator windings, one field winding and two damper windings, which are magnetically coupled.
The oscillations of older SG with conspicuous damper windings have relatively small amplitudes.