Futur Electric Drives

Control of an Air-Cored Resonant Induction Motor

• High power density machine by air-core

As mutual inductance is low, higher voltage is necessary. To reduce the voltage, we leverage the resonance principle.

• Our contributions:

• Generalization of the resonance principle allowing the possibility to resonate at any rotating speed.

• Generic new control algorithm, field-oriented based, having better properties than the classical, worldwide used, irFOC algorithm.


Details

• Air-core machines, mounted with capacitors
• Resonance principle & its generalization by controlling the slip
principle rlc circuit
generalization induction machine
• Generic adaptation of the irFOC algorithm
New current setpoints, where both 𝑖_𝑑& 𝑖_𝑞 vary. Motor control especially the torque is more accurate
• Simulation results : irFOC (left) vs. our 𝜔𝑠FOC (right)

See how our algorithm avoids saturations and manages keeping the torque smooth & controlled …

Similarly the torque is smooth & controlled using our algorithm. See how both Id & Iq vary.

 

 

 

 

 

 

• Results : irFOC (top) vs. 𝜔𝑠FOC (bottom)

Results : irFOC (top) vs. 𝜔𝑠FOC (bottom)

 

Yellow are saturations. See how our algorithm avoids them and manages keeping the torque smooth & controlled …

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