TÉCNICA DE CONTROL APLICADA A UN GENERADOR DE INDUCCIÓN DOBLEMENTE ALIMENTADO (CONTROL TECHNIQUE APPLIED TO A DOUBLY FED INDUCTION GENERATOR)
Resumen
En este trabajo se presenta la simulación de la técnica de control clásico aplicado a un convertidor Back-to-Back en un sistema eólico de generación empleando un generador de inducción doblemente alimentado de 5.5 kW, dicho sistema se encuentra interconectado a una red trifásica con un nivel de tensión de 220 V de línea a línea. Mediante la herramienta Simulink de MATLAB se analizan los modos de operación del generador relacionando los valores de referencia del sistema de control con los valores medidos. La propuesta del sistema de control emplea la sintonización de lazos de control de corriente, tensión y potencia junto con el uso de la estrategia antiwindup tracking back permitiendo mantener el sistema por debajo de los límites de operación; el uso de la modulación de vectores espaciales para el accionamiento de los convertidores, con el objetivo de controlar los flujos de potencia en el estator y rotor de la máquina, por medio de la electrónica de potencia.
Palabras Clave: Antiwindup, Convertidor Back-to-Back, Control vectorial, Generador de inducción doblemente alimentado, Modulación PWM.
Abstract
This paper presents the simulation of the classical control technique applied to a Back-to-Back converter in a wind generation system using a doubly fed induction generator of 5.5 kW, this system is interconnected to a three-phase network with a voltage level of 220 V line to line. Using MATLAB's Simulink tool, the generator's operating modes are analyzed by relating the control system's reference values to the measured values. The control system proposal employs the tuning of current, voltage and power control loops together with the use of the antiwindup tracking back strategy allowing to keep the system below the operating limits; the use of space vector modulation for the drive of the converters, with the objective of controlling the power flows in the stator and rotor of the machine, by means of the power electronics.
Keywords: Antiwindup, Back-to-Back converter, Doubly fed induction machine, PWM modulation, Vector control.
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PDFReferencias
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