Get Comparison Of Performance Of Switched Reluctance Motors

The main characteristics of synchronous reluctance motor are high efficiency at synchronous speed without using rare earth permanent magnets. These motors mainly allow the distributed sinusoidal AC stator windings which are connected through a particular rotor lamination design.

SRMs have better efficiency, better reliability, high fault tolerance, high constant power speed ratio (CPSR), and resistance to high temperatures compared with other types of motors such as induction motors, permanent magnet synchronous motors, and brushless DC motors.

Characteristics of Reluctance Motor Reluctance motors have poor efficiency and torque. Reluctance motors have low power factor. Reluctance motors cannot accelerate high inertia loads to the synchronous speed. Reluctance motors are cheaper than any other kind of synchronous motors.

Switched reluctance motors have concentrated windings, while synchronous reluctance motors have distributed windings. Compared to the switched reluctance motor, the synchronous reluctance motor has a smaller torque ripple and is therefore quieter in operation.

Reluctance motors can deliver high power density at low cost, making them attractive for many applications. Disadvantages include high torque ripple (the difference between maximum and minimum torque during one revolution) when operated at low speed, and noise due to torque ripple.

The switched reluctance motor efficiency is very flat, dropping from 93.5% at full load to 93.0% at the reduced load. Assume a duty cycle of 4,000 hours per year at each load point.

Then, the results of the study also read that the weight of the material needed in the BLDC is 5.94 kg, lighter than the SRM which weighs 8.14 kg. Efficiency in BLDC is also known to be greater than SRM, which is 94.9% compared to 82.2%.