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What is microprocessor based VVVF control for 3 phase Induction motors?

April 26, 2017based CONTROL Engineering induction Mathematics microprocessor phase

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What is microprocessor based VVVF control for 3 phase Induction motors?

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VVVF is “Variable Voltage Variable Frequency”. It is one of the most popular methods of Speed and Torque Control in Induction Motors. In this method you vary the frequency to vary the speed and you also vary the voltage in proportion to maintain the torque constant. If the controlling of the Inverter come from a pre-programmed micro-processor, then it may be called “Micro Processor Based VVVF”.