Friends, today in this article we will learn about the various electric generators used in small wind turbine power plants. I am going to give information about all these in a very good way. So let’s start.
The main generators used in small wind turbine power plants are as follows:
Permanent Magnet Synchronous Generator
This generator is a more suitable generator for wind power plants. The conversion of wind energy (mechanical energy) to electrical energy takes place directly through PMSG. It does not require a gear box between the turbine and the generator. It is a low-cost generator system. The speed of PMSG is low.
Cage Type Induction Generator
SCIG is used in small wind turbine plants. It acts as a controlling generator. Its stator winding is connected through a four-quadrant power converter. In this, the stator side converter controls the electromagnetic torque. Reactive power is supplied by it. In this, back-to-back converter is installed on the stator side and it is connected to the grid end.
Doubly feed induction generator
Doubly feed induction generators are used extensively in small wind turbine power plants. Back-to-back converter with IGBT is used in DFIG. It is a four quadrant converter. Power and torque can be controlled by it. It is a power electronic controller generator. In DFIG, rotor and grid converter are controlled separately to control active and reactive power.
Synchronous generator
Synchronous generators are used for variable speed in wind turbine plants. Voltage is generated in them even at low rotational synchronous. Pitch control is not required in synchronous generator based wind power plants. AVR is used for excitation in synchronous generator. Output can be controlled by it. Direct output system is obtained by removing gear box in it.
What did you learn today :-
Now you must have known about the various electric generators used in small wind turbine power plants. You must have got the answer to all these questions well.
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