Constant power angle control strategy of doubly-fed brushless machine with reluctance rotor

The control strategy has an important effect on the performance and cost of a doubly-fed brushless machine (DFBM) adjustable speed drive system. Therefore, it is necessary to study the key control technique of the DFBM system. Based on the operation principle and mathematical model of a DFBM, a constant power angle control strategy is proposed in this paper. The control system realizes not only soft-starting and speed control over a wide range below and above the synchronous speed, but also adjusts the active and passive power bi-directionally. The system structure, operation principal, control strategy and implementation are introduced. The simulation results of the system performance are also presented in the paper.

[1]  T.A. Lipo,et al.  Transient Model of a Doubly Excited Reluctance Motor , 1991, IEEE Power Engineering Review.

[2]  T. G. Habetler,et al.  Direct torque control for brushless doubly-fed machines , 1992, Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting.

[3]  Ruqi Li,et al.  Dynamic simulation of brushless doubly-fed machines , 1991 .

[4]  Chiping Sun,et al.  A novel position sensorless control scheme for doubly fed reluctance motor drives , 1994 .

[5]  Longya Xu,et al.  A novel wind-power generating system using field orientation controlled doubly-excited brushless reluctance machine , 1992, Conference Record of the 1992 IEEE Industry Applications Society Annual Meeting.