Advantages, Disadvantages and Applications of Synchronous Reluctance

ADVANTAGES AND DISADVANTAGES OF SYNCHRONOUS RELUCTANCE

MOTOR

Advantages

^v   There is no concern with demagnetization; hence synchronous reluctance machines are inherently more reliable than PM machines.

^v   There need not be any exciting field as torque is zero, thus eliminating electromagnetic spinning losses.

^v   Synchronous reluctance machine rotors can be constructed entirely from high strength, low cost materials.

Disadvantages

^v   High cost than induction Motor.

^v   Need Speed synchronization to invertor output frequency by using rotor position sensor and sensor less control.

^v   Compared to induction motor it is slightly heavier and has low power factor.

^v   By increasing the saliency ratio L_ds/L_qs, the power factor can be improved.

APPLICATIONS OF SYNCHRONIZATION

^v    Metering Pumps.

^v   Auxiliary time Mechanism.

^v   Wrapping and folding Machines.

^v   Proportioning Devices on Pumps or conveyors.

^v   Synthetic fibre manufacturing equipment.

^v   Processing continuous sheet or film material.