What is the engine of reluctance?

The reluctance engine is an electric motor that produces temporary magnetic poles on its rotor. It is thus named because it uses magnetic unwillingness to produce torque. The primary advantage of this type of engine is that it usually creates a high power density for the cost. The primary disadvantage of this engine is that it tends to generate the ripple torque at low speed, creating noise.

The use of engine unwillingness was traditionally limited by the complexity of their design and control methods. Advances in computer design helps have helped to overcome the design limitations of these engines. Reduced costs for built -in microprocessors provided these engines acceptable control at an affordable price. These microprocessors use parameters such as rotor position, engine current and voltage. The stator and the rotor contain numerous projections that produce magnetic poles. The rotor usually contains fewer poles that stator. This prevents alignment of all poles at the same time, which prevents generation of rotatinghim a moment. The difference between the number of rotor poles and the number of stator poles also reduces the ripple torque.

The maximum amount of magnetic unwillingness occurs when the rotor pole in the engine of unwillingness is exactly between the two poles of the stator. This position is also known as the fully unbalanced position of the rotor pole. The minimum amount of magnetic reluctance occurs when at least two rotor poles are equal to at least two stator poles. This position is known as the aligned position of the rotor pole.

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stator pole creates a magnetic field that pulls the nearest rotor pole from a fully unbalanced position to the aligned position, creating torque. Continue the magnetic field of the Stator, which pulls the rotor with it. Most modern engines of unwillingness use switching to control the aspects of engine behavior, such as starting, smooth operation and speed specification. Some variations of this type of engine areAble to use three -phase AC current (AC).

Synchronous motor of unwillingness has the same number of stator poles and rotor poles. Rotor holes produce low flow areas to achieve this equality between the stator and the rotor. This type of motor reluctance usually contains four or six poles. The energy losses of the rotor are much less than the losses in induction motors because the rotor contains no parts that perform electricity.