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A simple method for on-line calculation of core losses is developed. The method is based on the separation of core loss into hysteresis and eddy current components. The generated voltage of a self excited induction generator (SEIG) is neither purely sinusoidal nor its frequency is fixed. For the current analysis sinusoidal flux wave form is considered for simplicity. When the frequency of the generated...
Wound-rotor induction motor drive fed from inverters on both the stator and rotor side is discussed. The sensorless control scheme for the motor requires a V/f-type direct frequency control preferably on the rotor side, with either vector control or direct torque control on the stator side. Selection of any frequency for the rotor side inverter keeping the rotor flux constant is possible. This rotor...
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