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The Equivalent T Circuit of the Induction Motor: Its Nonuniqueness and Use to the Magnetic Field Analyst

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1 Author(s)
Davey, K.R. ; Center for Electromech., Austin, TX

The equivalent T circuit of an induction motor is found in every engineering motors book and is becoming increasingly important with the popularity of vector control. The values used in the circuit are used to dictate the necessary gating signals for the pwm inverter. It is the de facto standard bridge between the field analyst and the motor controller. These parameters are not unique. Force, energy, voltage, and secondary power dissipation can be shown to relate to the product of synchronous reactance and the coupling coefficient of the rotor and stator. The mutual reactance, the secondary inductance, and secondary resistance are nonunique. Yet this surprising feature can be used as a solution integrity check for the field analyst

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Magnetics, IEEE Transactions on  (Volume:43 ,  Issue: 4 )