Learn causes, effects, and how to reduce harmonic distortion. Harmonics affect induction motors in two fundamentally different ways, depending on whether the motor is connected to the network or to the output of a variable frequency drive. These harmonic fluxes induce voltages and circulate harmonic currents in the rotor windings
Normalized harmonic components of the stator current of an induction
The interaction between the harmonic currents generated in the rotor.
In order for an induction motor to cope with additional harmonic losses, the induction motor nominal power is reduced in case of severe distortion
Harmonics combined with voltage unbalance lead to damaging vibrations levels Voltage unbalance and harmonic voltage distortion affect the power, torque and vibrations on induction. Harmonics are key problem of power quality which directly affect efficiency and power factor of induction motor and also responsible for increasing losses of motor, due to that maintenance cost of. The proposed methodology for estimating the effects of voltage unbalance and harmonics, both separately and simultaneously, on the induction motor behaviour follows the basis.
