Application105 Synchronous Reluctance Motor Analysis

The reluctance motor is greatly expected to be highly efficient and resource-saving without permanent magnets.
The example analyzes a synchronous reluctance motor.

Analysis Model
The motor consists of 4 poles and 24 slots.
Permanent magnets are not used.
The rotor is constructed only with electrical steel sheets including hyperbolic flux barriers (air layers).
The analysis is coupled with an external circuit, where current values are set to the input.
The model is quarter-periodic symmetric and 2D for less computation time.

A current source allows you to calculate a torque in a steady state.
The resulting graph shows the waveform of the torque varies in relation to the mechanical angle, which means reluctance torque is given.
The phase of U-phase is determined by utilizing the result obtained from the function of [Search for power phase at the maximum torque].
Even though torque varies depending on the power source phase, the function can determine the power source phase to maximize the torque in a short time.

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