Sistema de control de excitatriz de una máquina síncrona utilizado lógica difusa y redes neuronales.

Abstract

The present project is about development of the control for the exciter of a synchronous motor using intelligent control techniques such as fuzzy logic and neural networks. The exciter will be driven by a direct or direct current (DC / DC) power supply which will be controlled by means of a pulse width modulation (PWM). A Synchronous Buck configuration is used in the hand of a Snubber network as a converter (DC / DC) to reduce over-impulses directed to the exciter when transmitting a voltage value. The types of intelligent controllers that are to be implemented are a Fuzzy type 3, 5 and 7 controller designed based on the data obtained for the motor-generator system and neural networks that allow to clone the behavior of the planto r the controller, in order to establish a comparative the response obtained from the two aforementioned intelligent controllers and controllers designed prior to this investigation. For the acquisition of the motor-generator system data and as a control output for the motor exciter, a low-cost card from National Instruments with reference DAQ NI USB-6009 is used, which allows to easily establish communication for sending and receiving data with the software Matlab® from its program editor, Command Window and the Simulink Toolbox, which in turn gives way to the use of the Fuzzy toolboox of the same software to perform intelligent control. This card achieves the closing of the closed control loop with its output channel that gives the action to the control stage that by means of the micro controller generates the pulse width modulation that gives continuity to the control process of the exciter for the motor synchronous The control action is based on the variation of voltage levels that through the data acquisition card will be guided to the micro controller; the microcontroller will have the respective programming that from the voltage level received in its terminals will generate a proportional pulse width modulation.