Abstract
High Intensity Discharge Metal Halide lamps are used as light sources in open spaces, such as sport courts and parking lots. However, the acoustic resonance (AR)phenomenon may occur when they are operating at frequencies (between 1 kHz and 1 MHz), which difficults its stable operation. In this work, we propose the use of a novel adaptive and predictive control for allowing stable operation and AR free of HID- MH lamps. The mathematical model of the system to be controlled was obtained by adapting a previous method from our investigation group based in a novel PRBS signal, which yielded a normalized root mean square error FIT of 91.43 percent in terms of the simulated and real system response. A development board STM32F4DISCOVERY was used to identify the system and to control the ballast prototype, in order to support the computational requirements of the developed algorithms. Experiments were conducted using both simulations and our prototype, showing a steady state power error lower than 3 percent. The proposed control system allows a stable functional operation on the ballast, avoiding the AR in HID-MH 250 W lamps from different manufacturers.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
