Speed control by frequency variation
Asynchronous machines - Continuous operation

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D3480 V1 Article

Speed control by frequency variation
Asynchronous machines - Continuous operation

Author : Michel POLOUJADOFF

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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