Switched reluctance motor structure and working principle

In order to make better use of the function of the switched reluctance motor, we must first master its structure and working principle, so that it will not be unclear when the motor is used and the problem is not noticed. Therefore, the following small series will tell you in detail about its structure and working principle.

 

[Structure and working principle of switched reluctance motor]

 

Basic structure: Both the stator and the rotor are salient pole structures, and the number of teeth of the stator and the rotor are not equal. The number of teeth of the rotor is generally two less than that of the stator. The stator teeth are sleeved with a concentrated coil, and the two stator teeth coils with opposite spatial positions are connected in series to form a phase winding. The rotor is made up of laminations of iron core with no windings on it.

 

Working principle: The working principle of the switched reluctance motor is the same as that of the reluctance (reactive) stepping motor, based on the principle that the magnetic flux always closes along the path with the largest permeance. When the center line of the rotor teeth does not coincide and the magnetic conductance is not maximum, the magnetic field will generate a magnetic pull force, forming a reluctance torque, and turning the rotor to the position where the magnetic flux is the largest. When current is sequentially supplied to the stator phase windings, the motor rotor will be rotated step by step in the opposite direction of the energization phase sequence. If the order of energization of the phases of the stator is changed, the motor will change direction. However, the change in the direction of the phase current flow does not affect the steering of the rotor.

 

Therefore, in general, the stator and rotor of a switched reluctance motor are its main structural devices. Therefore, when maintaining, maintaining, and repairing the motor, these two parts must be carefully maintained, and Xiaobian tells you that many aspects Knowing the knowledge of this motor can help you to better control the use and better and more fully play its role.