Desarrollo y análisis de un generador de inducción de doble devanado en el estátor aplicado en sistemas eólicos de velocidad variable

Identificador:  TDX:2095

Handle: https://hdl.handle.net/20.500.11797/TDX2095

Autors:  Munté Puig, Javier

Resum:
The present doctoral dissertation deals with the use of an asynchronous machine, with a standard rotor squirrel cage and a stator with two independent windings with a different number of poles, for obtaining electrical energy from a motor system powered by a wind turbine. We have developed a prototype and the mathematical models; we have performed simulations and have undertaken experimental tests to demonstrate the effectiveness of the generator. We have also designed the machine control stage. In the generator, one of the windings is used to control the production of electricity in a low-speed regime through a bidirectional converter, which can be connected to a DC bus or to the mains. The other winding provides power directly to the mains, together with the previous winding, when reaching a given speed value, thereby achieving optimum efficiency for different wind speed conditions and quality in the power supply. The main new development is the use of this type of machine for the exploitation of wind energy in a variable speed range with the use of a simple open-loop control.