ENERGY-SAVING MODE APPLICATION IN THE VARIABLE-FREQUENCY INDUCTION ELECTRIC DRIVE

Considers ways to reduce the industrial units’ electric drives energy consumption, in particular, variable-frequency induction drives. The economic potential assessment of energy conservation in the drives under consideration. The need for reducing energy consumption in the units under consideration is shown. The possible implementing method an energy-saving mode operation under scalar control with a proportional control law is described in detail. An application analysis of the scalar control principles is made, as well as the presented reducing energy consumption method in industrial frequency invertors. An electric drive operation temporary diagram during the entering to the energy-saving mode and exiting from it is presented, demonstrating the energy-saving parameters influence to the drive operation in the presented energy-saving mode. Also, it considers energy-saving mode drawback and the possible consequences of its use are revealed.

Authors: N. I. Tatarintsev, D. S. Karasyov

Direction: Electrical Engineering

Keywords: Variable-frequency AC electric drive, energy-saving electric drive, V/f control, energy-saving mode in the frequency inverter

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