Title :
Synchronous drive performance of brushless doubly-fed motors
Author :
Li, Ruqi ; Spée, René ; Wallace, Alan K. ; Alexander, G.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
This paper presents studies of the steady-state performance of the brushless doubly-fed machine for adjustable-speed drive applications. The equivalent circuit and basic performance equations are presented followed by a proven technique for the solution of the least restrained form of the equations. Model predictions and experimental results are given. The studies show that the machine acts like both a synchronous motor, with power factor adjustable by control winding excitation, and a slip-ring induction machine with slip power recovery and a low converter rating. The model is suitable for development of control schemes and performance index optimization
Keywords :
equivalent circuits; machine control; performance index; power factor; slip (asynchronous machines); synchronous motors; variable speed drives; adjustable power factor; adjustable-speed drive applications; brushless doubly-fed motors; control winding excitation; equivalent circuit; low converter rating; performance equations; performance index optimization; slip power recovery; slip-ring induction machine; steady-state performance; synchronous drive performance; Brushless motors; Equations; Equivalent circuits; Induction machines; Machine windings; Predictive models; Reactive power; Steady-state; Synchronous motors; Variable speed drives;
Journal_Title :
Industry Applications, IEEE Transactions on
