Modelamento de um sistema de iluminação e proposta de controlador

Abstract

The electricity costs in Brazil are mainly caused by lighting systems. Many factors influence for this, between them are lower effectiveness of systems and full time use. Thereby, market needs new technologies and innovations to minimize costs with illuminance, as well all the society must reduce the use of electricity, what can be done from improvements on effectiveness use of this resource. Spending with electricity has increased over the years in the country, at the same time the production is more expensive and the resources scarce, prejudicing the economy and the environmental. Therewith, using effectiveness illumination systems, based on LED technology, are one good solution to save money and maintenance. Thereby, this study analysis LED illumination systems for residential, commercial and industrial offices, respecting brazilian technical standards. Withal, was modeled step response of system by Ziegler-Nichols’ method, developed on experimental room and analyzed simulations to prove method application. This research proposes development a digital controller, but it is an initial work with future produce of PCB and controller to LED lamps. These lamps, among other benefits, feature of control of power directly on diodes, enabling development an automatic controlled product in future works, keeping constant illuminance on offices. The control are accomplish by illumination intensity from ambient, where the sensor is attach on LED lamp. Thereby, is estimated that be possible keeping constant the illuminance on office, adjusting just power on LEDs in accordance with other luminous influences. Finally, it expected contribute to reduce the costs with electricity and maintenance with this proposed.