Speed control by frequency variation
Asynchronous machines - Continuous operation
Article REF: D3480 V1
Speed control by frequency variation
Asynchronous machines - Continuous operation

Author : Michel POLOUJADOFF

Publication date: August 10, 1998, Review date: September 17, 2024 | Lire en français

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5. Speed control by frequency variation

5.1 The basics

As the synchronizing speed is proportional to the pulsation ω, it can be varied by varying the pulsation. The question arises as to how the torque-velocity curve will then vary; but this question is meaningless if we don't specify the voltage. Since the equation of a stator phase is : u=ri+dφ/dtudφ/dt.

It follows that...

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