☑ Induction Generators

The prime mover torque becomes opposite to electric torque. When induction motor running as generator it takes mechanical power and supply electrical power from stator.

Induction Generator

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Induction Generators With Squirrel Cage Rotors Used In Wind

An induction machine will behave as an induction generator when.

Induction generators. Induction generators are also called as asynchronous generators. Now let us discuss how we can achieve these conditions. The prime mover may be a turbine an engine a windmill or anything that is capable of supplying the torque and speed needed to drive the motor into the over speed condition.

To run the induction motor as generator its slip must be less than zero. At the starting the machine draws the lagging reactive volt amperes from the supply mains. Before starting to explain how an induction asynchronous generator works i assume that you know the working principle of an induction motor.

S lip becomes negative due to this the rotor current and rotor emf attains negative value. Induction generators operate by mechanically turning their rotors faster than synchronous speed. The induction motor becomes a generator when it is connected to an electrical power system and then driven above its synchronous speed by some prime mover.

An induction generator or asynchronous generator is a type of alternating current ac electrical generator that uses the principles of induction motors to produce electric power. In an induction motor the rotor rotates because of slip ie. Relative velocity between the rotating magnetic field and the rotor.

Ie negative negative slip show that the rotor is running at a speed above the synchronous speed. Initially an induction generator or the machine is started as a motor. An induction machine sometimes is used as a generator.

Induction generator is also known as asynchronous generator.

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