| Abstract |
This paper deals with the control of a wound rotor induction machine, with the stator being connected to the constant frequency line and the rotor fed by a voltage source GTO inverter. Applying field orientation a variable speed generator is obtained, with a decoupled control of stator active and reactive power even during transient operation. All control tasks as well as the modulation of the inverter are carried out by a single 16-bit microprocessor. Feeding almost sinusoidal rotor currents, the variable frequency grid harmonics can be nearly eliminated. |
