Perfect Hysteresis Motor Diagram
The torque generated in the motor is due to the.
Hysteresis motor diagram. 2 shows a vector diagram of the hysteresis motor s field oriented control. Its hysteresis loop area must be high in order to high hysteresis loss. The rotor is made of chrome steel or alnico type hard material.
Since at the synchronous speed the torque developed by an induction motor becomes zero whereas in the hysteresis motor the torque is constant at all the speed even at the synchronous speed. Transient time dynamic model of hysteresis motor. Here d q is the stationary two phase frame d q is the rotor flux oriented frame where the d axis is aligned with the rotor flux linkage.
If the operation of the hysteresis motor depends upon effect of shaded pole it is called as shaded pole hysteresis motor. It is a single phase motor and its rotor is made of ferromagnetic material with non magnetic support over the shaft. A hysteresis motor works on the principle of hysteresis losses it is a loss occurred due to magnetization and demagnetization of the material depending on the direction of flow of current.
It does not consist any winding. Torque speed characteristic of hysteresis motor. Hysteresis motor circuit diagram with hysteresis effect and eddy cur rent effect in different coordinate systems.
Initially when hysteresis motor is started it behaves as a single phase induction motor and while running it behaves as a synchronous motor. Die drei bilder zeigen hysteresekurven eines dauermagneten mit harter hysteresekurve der eine hohe koerzitivfeldstärke und eine hohe remanenz besitzt sowie zweier transformator eisenkerne siehe auch. Hysteresis motor is defined as a synchronous motor that is having cylindrical rotor and works on hysteresis losses induced in the rotor of hardened steel with high retentivity.
The speed torque curve of the motor is shown below. Dynamoblech die eine kleine koerzitivfeldstärke und unterschiedliche starke neigungen magnetische scherung und remanenzen besitzen. When stator is energised with single phase ac supply it produces rotating magnetic field.