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In existing load flow model of induction generators, the magnetizing path is moved to the stator terminal, parallel to the shunt capacitor, yielding the same stator and rotor currents. The power output is equal to the mechanical power input. The stator resistance and the machine loss are ignored. It can not provide the initial condition for the dynamic and control schemes requiring the exact stator...
The induction generators are basic to wind energy conversion. They produce the active power and consume reactive power, with the voltage characteristics fragile compared with that of the synchronous generators. In stressed system conditions, they may intensify var imbalance, causing undesirable operation of the zone 3 impedance relays (mho relays). In this paper, the static voltage characteristics...
To quantify the oscillation characteristics of wind power systems, the stator dynamics of the induction generators is included. An interface including the stator voltage angle is given, changing the network parameter to the dq frame, which proves that the stator dynamics can not be ignored for practical systems with limited synchronous capacity. But the stator parameters can not be chosen as the state...
Doubly-fed induction generators (DFIG) are widely used in the wind farms. Many papers focus on their behavior connecting to an infinite bus and the influence on the power system stability ignoring the grid side converters. In this paper, the dynamic simulation of doubly-fed induction generators on multi-machine power system is studied. With the decoupled active and reactive power control scheme, compensated...
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