Model Predictive Control for Luminous Flux Tracking in Light-Emitting Diodes

Luminous flux tracking and junction temperature stress minimization are typical objectives in the regulation of high-brightness light-emitting diodes (LEDs). In this brief, a solution based on a model predictive controller approach is proposed. The state estimation is obtained using an LED photoelectrothermal dynamic model whose parameters are tuned through datasheets and dedicated experiments. By exploiting the dynamic separation within the thermal state variables of the model, the junction temperature is predicted using LED current and heat sink temperature measurements. The effectiveness of the proposed approach is verified through simulations and experiments on different heat sinks and samples of the same LED family, thus confirming the achievement of the luminous flux tracking under current and temperature constraints typically featuring LED applications.

[1]  T. W. Murphy.  Maximum spectral luminous efficacy of white light , 2012, 1309.7039.

[2]  Chen Hu,et al.  Series–Parallel Autoregulated Charge-Balancing Rectifier for Multioutput Light-Emitting Diode Driver , 2014, IEEE Transactions on Industrial Electronics.

[3]  Luigi Iannelli,et al.  A parallel algorithm for implicit model predictive control with barrier function , 2012, 2012 IEEE International Conference on Control Applications.

[4]  Cristiano Maria Verrelli,et al.  Repetitive Learning Control Design for LED Light Tracking , 2015, IEEE Transactions on Control Systems Technology.

[5]  Huanting Chen,et al.  A New Noncontact Method for the Prediction of Both Internal Thermal Resistance and Junction Temperature of White Light-Emitting Diodes , 2012, IEEE Transactions on Power Electronics.

[6]  Bin-Juine Huang,et al.  Illumination and Color Control in Red-Green-Blue Light-Emitting Diode , 2014, IEEE Transactions on Power Electronics.

[7]  Duong Tran,et al.  Sensorless Illumination Control of a Networked LED-Lighting System Using Feedforward Neural Network , 2014, IEEE Transactions on Industrial Electronics.

[8]  Yoshihiro Ohno,et al.  Spectral design considerations for white LED color rendering , 2005 .

[9]  J. M. Alonso,et al.  Effects of the junction temperature on the dynamic resistance of white LEDs , 2012 .

[10]  C. Sadler,et al.  Lights Out , 2000 .

[11]  Yu-Kang Lo,et al.  LED backlight driver circuit with dual-mode dimming control and current-balancing design , 2014, 2014 International Conference on Intelligent Green Building and Smart Grid (IGBSG).

[12]  C. K. Michael Tse,et al.  Energy-Saving Driver Design for Full-Color Large-Area LED Display Panel Systems , 2014, IEEE Transactions on Industrial Electronics.

[13]  Luca Ferrarini,et al.  Preventing Thermal Overloads in Transmission Circuits via Model Predictive Control , 2010, IEEE Transactions on Control Systems Technology.

[14]  Alberto Rodriguez,et al.  Design-Oriented Analysis and Performance Evaluation of a Low-Cost High-Brightness LED Driver Based on Flyback Power Factor Corrector , 2013, IEEE Transactions on Industrial Electronics.

[15]  Andras Poppe,et al.  On the standardization of thermal characterization of LEDs , 2009, 2009 25th Annual IEEE Semiconductor Thermal Measurement and Management Symposium.

[16]  D. H. Mash,et al.  Light-emitting diodes , 1977, Nature.

[17]  C.K. Tse,et al.  On Driving Techniques for LEDs: Toward a Generalized Methodology , 2009, IEEE Transactions on Power Electronics.

[18]  Siew-Chong Tan,et al.  General $n$-Level Driving Approach for Improving Electrical-to-Optical Energy-Conversion Efficiency of Fast-Response Saturable Lighting Devices , 2010, IEEE Transactions on Industrial Electronics.

[19]  Sheng Liu,et al.  Effects of Defects on the Thermal and Optical Performance of High-Brightness Light-Emitting Diodes , 2009, IEEE Transactions on Electronics Packaging Manufacturing.

[20]  Joy Laskar,et al.  50th Anniversary of the Light-Emitting Diode (LED): An Ultimate Lamp [Scanning the Issue] , 2013, Proc. IEEE.

[21]  José Marcos Alonso Alvarez,et al.  Analysis and Design of the Integrated Double Buck–Boost Converter as a High-Power-Factor Driver for Power-LED Lamps , 2012, IEEE Transactions on Industrial Electronics.

[22]  A. Poppe,et al.  A general multi-domain LED model and its validation by means of AC thermal impedance , 2013, 29th IEEE Semiconductor Thermal Measurement and Management Symposium.

[23]  Philip Pickering.  Towards a systematic methodology for the design, testing and manufacture of high brightness light emitting diode lighting luminaires , 2013 .

[24]  Chern-Lin Chen,et al.  An integrated lighting unit with regulated pulse current driving technique , 2012, 2012 IEEE Energy Conversion Congress and Exposition (ECCE).

[25]  Ron Shu-Yuen Hui,et al.  Dynamic Prediction of Correlated Color Temperature and Color Rendering Index of Phosphor-Coated White Light-Emitting Diodes , 2014, IEEE Transactions on Industrial Electronics.

[26]  Stephen P. Boyd,et al.  Fast Model Predictive Control Using Online Optimization , 2010, IEEE Transactions on Control Systems Technology.

[27]  Yuan-Sheng Tyan,et al.  Organic light-emitting-diode lighting overview , 2011 .

[28]  Xuehui Tao,et al.  Thermal Parameter Extraction Method for Light-Emitting Diode (LED) Systems , 2013, IEEE Transactions on Electron Devices.

[29]  Xuehui Tao,et al.  Dynamic Photoelectrothermal Theory for Light-Emitting Diode Systems , 2012, IEEE Transactions on Industrial Electronics.

[30]  Odirlan Iaronka,et al.  Design Methodology for Light-Emitting Diode Systems by Considering an Electrothermal Model , 2013, IEEE Transactions on Electron Devices.

[31]  S. Hui,et al.  A General Photo-Electro-Thermal Theory for Light Emitting Diode (LED) Systems , 2009, IEEE Transactions on Power Electronics.

[32]  Henrique A. C. Braga,et al.  Static and Dynamic Photoelectrothermal Modeling of LED Lamps Including Low-Frequency Current Ripple Effects , 2015, IEEE Transactions on Power Electronics.

[33]  Marco A. Dalla Costa,et al.  An optimized methodology for led lighting system designers: A photometric analysis , 2012, IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society.

[34]  S. Hui,et al.  An Extended Photoelectrothermal Theory for LED Systems: A Tutorial From Device Characteristic to System Design for General Lighting , 2012 .

[35]  C.C. Lee,et al.  An electrical model with junction temperature for light-emitting diodes and the impact on conversion efficiency , 2005, IEEE Electron Device Letters.