Wound rotor induction motor pdf

Wound rotor motors are an extremely versatile breed of induction motors. However, no power is applied to the slip rings. Their sole purpose is to allow resistance to be placed in series with the rotor windings while starting.

The external resistances are used only to start the motor providing high . In particular, vector or field-oriented control allows induction motors to replace DC motors in many applications.

Phase induction machine construction.

Electrical and Computer Engineering Department.

Wound - rotor type induction motor : In this case rotor conductors are insu- lated windings which are not shorted by end rings but the terminals of windings are brought out to connect them to three numbers of insulated slip rings which are mounted on the shaft, as shown in Fig. External electrical connections to the rotor . Abstract: The regulation of speed is required in many applications of induction motors , including in electric locomotives and electric driving vehicles. The speed is controlled by changing the external resistance in the rotor circuit. Control of Wound Rotor Induction Motor. Using Thyristors in the Secondary Circuits.

Saeed Lesan, Mohamed Salah Smiai, Senior Member, IEEE, and William Shepher Fellow, IEEE. Wound - rotor induction motors are generally used for high torque and adjustable speed conditions. At lower speeds, either power is wasted in rotor resistanc. The paper describes the backgroun concept, simulation and experimental implementation of rotor side control of wound rotor induction machine.

A vector control approach using. Induction motors can be started Direct-on-Line (DOL), which means that the rated voltage is supplied to the stator, with the rotor terminals short-circuited in a . The proposed method ensures the soft and higher . Advantages of Squirrel-Cage Induction Motors. Squirrel Cage Induction Motor vs Slip Ring Induction Motor.

The behavior of WRIM were simulated under healthy and asymmetry conditions. Abstract: The aim of this paper is to analyze the performance of 3-phase wound rotor induction motor (WRIM) under rotor windings asymmetry. With the aid of simulation , variation of motor spee electromagnetic torque, . The doubly-fed induction generator (DFIG),.

The wound rotor induction motor has some distinct application advantages. MOTOR WITH UNBALANCED VOLTAGES ON THE STATOR. Estimating rotor resistance of wound rotor induction motor by look-up table and fuzzy logic approach.

Copper or aluminum bars embedded into the slots, which are connected to shorting rings at the end of the rotor). Rotor currents are accessible at the brushes, where extra resistance can be inserted to modify the motor torque-speed characteristic.