CONTROL DE LA CORRIENTE CONSUMIDA DE UN GENERADOR DE OZONO COMERCIAL USANDO UN ARDUINO (COMMERCIAL OZONE GENERATOR CURRENT CONSUMED CONTROL USING ARDUINO)
Resumen
Los generadores de Ozono son dispositivos que operan por descarga Corona, ionizan el aire hasta disociar el Oxígeno neutro (O2), formando radicales de Oxígeno (O-) recombinándose con O2 formando Ozono (O3). Los generadores de Ozono comerciales presentan dos problemas principalmente: a) funcionan en periodos cortos de tiempo por consumir elevadas corrientes y b) no controlan la producción del O3. Este trabajo se enfoca en controlar la corriente consumida por un generador comercial empleado un Arduino. Se simuló, diseñó y realizó un circuito Buck optoaislado capaz de transmitir una señal de retroalimentación PWM (Pulse-Width Modulation). El control utilizado es ON/OFF (encendido-apagado), se programamó y ejecutó desde MATLAB. Se implementó un filtro EMA (Exponential Moving Average) debido a la no linealidad de la corriente del generador, ya que las señales del sensor presentaron ruido en el sensor. El control ON/OFF fue capaz de mantener a momentos la corriente alrededor del límite deseado.
Palabras Claves: Arduino, Circuito reductor Buck, Control ON/OFF, Generador de Ozono, MATLAB
Abstract
Ozone generators are devices that operate by Corona discharge effect, that is, they ionize the air until causing the dissociation of neutral Oxygen (O2), forming Oxygen radicals (O-) that recombine with another neutral molecule to form the Ozone (O3). Commercial ozone generators have two main problems: a) they work for short periods of time due to high current discharge and b) they do not allow O3 production to be controlled. This work focuses essentially on the control of current consumed by a commercial generator, for which an Arduino microcontroller has been used. An opto-coupled Buck circuit capable of transmitting a PWM (Pulse-Width Modulation) feedback signal was simulated, designed and realized. The control presented is of the ON/OFF type (on-off) and its programming was carried out and executed from the MATLAB software. An EMA (Exponential Moving Average) filter was implemented due to the non-linearity of the current in the generator, since it presented signals with noise in the sensor. The ON/OFF control was able to keep the current around the desired limit at times.
Keywords: Arduino, Buck Converter, MATLAB, ON/OFF Control, Ozone Generator.
Texto completo:
243-258 PDFReferencias
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