Development of constant-power driving control for light-emitting-diode (LED) luminaire

Handle URI:
http://hdl.handle.net/10754/597961
Title:
Development of constant-power driving control for light-emitting-diode (LED) luminaire
Authors:
Huang, Bin-Juine; Chen, Chun-Wei; Ong, Chin-Dian; Du, Bo-Han; Hsu, Po-Chien
Abstract:
The illumination of an LED may be affected by operating temperature even under constant-current condition. A constant-power driving technique is proposed in the present study for LED luminaire. A linear system dynamics model of LED luminaire is first derived and used in the design of the feedback control system. The PI controller was designed and tuned taking into account the control accuracy and robust properties with respect to plant uncertainty and variation of operating conditions. The control system was implemented on a microprocessor and used to control a 150W LED luminaire. The test result shows that the feedback system accurately controls the input power of LED luminaire to within 1.3 per cent error. As the ambient temperature changes from 0 to 40 °C, the LED illumination varies slightly (-1.7%) for constant-power driving, as compared to that of constant-current driving (-12%) and constant-voltage driving (+50%). The constant-power driving has revealed advantage in stabilizing the illumination of LED under large temperature variation. © 2012 Elsevier Ltd. All rights reserved.
Citation:
Huang B-J, Chen C-W, Ong C-D, Du B-H, Hsu P-C (2013) Development of constant-power driving control for light-emitting-diode (LED) luminaire. Applied Thermal Engineering 50: 645–651. Available: http://dx.doi.org/10.1016/j.applthermaleng.2012.07.030.
Publisher:
Elsevier BV
Journal:
Applied Thermal Engineering
KAUST Grant Number:
KUK-C1-014-12
Issue Date:
Jan-2013
DOI:
10.1016/j.applthermaleng.2012.07.030
Type:
Article
ISSN:
1359-4311
Sponsors:
This publication is based in part on work supported by Energy Bureau, Ministry of Economic Affairs, Taiwan, and Award No. KUK-C1-014-12, made by King Abdullah University of Science and Technology (KAUST), Saudi Arabia.
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorHuang, Bin-Juineen
dc.contributor.authorChen, Chun-Weien
dc.contributor.authorOng, Chin-Dianen
dc.contributor.authorDu, Bo-Hanen
dc.contributor.authorHsu, Po-Chienen
dc.date.accessioned2016-02-25T12:59:34Zen
dc.date.available2016-02-25T12:59:34Zen
dc.date.issued2013-01en
dc.identifier.citationHuang B-J, Chen C-W, Ong C-D, Du B-H, Hsu P-C (2013) Development of constant-power driving control for light-emitting-diode (LED) luminaire. Applied Thermal Engineering 50: 645–651. Available: http://dx.doi.org/10.1016/j.applthermaleng.2012.07.030.en
dc.identifier.issn1359-4311en
dc.identifier.doi10.1016/j.applthermaleng.2012.07.030en
dc.identifier.urihttp://hdl.handle.net/10754/597961en
dc.description.abstractThe illumination of an LED may be affected by operating temperature even under constant-current condition. A constant-power driving technique is proposed in the present study for LED luminaire. A linear system dynamics model of LED luminaire is first derived and used in the design of the feedback control system. The PI controller was designed and tuned taking into account the control accuracy and robust properties with respect to plant uncertainty and variation of operating conditions. The control system was implemented on a microprocessor and used to control a 150W LED luminaire. The test result shows that the feedback system accurately controls the input power of LED luminaire to within 1.3 per cent error. As the ambient temperature changes from 0 to 40 °C, the LED illumination varies slightly (-1.7%) for constant-power driving, as compared to that of constant-current driving (-12%) and constant-voltage driving (+50%). The constant-power driving has revealed advantage in stabilizing the illumination of LED under large temperature variation. © 2012 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipThis publication is based in part on work supported by Energy Bureau, Ministry of Economic Affairs, Taiwan, and Award No. KUK-C1-014-12, made by King Abdullah University of Science and Technology (KAUST), Saudi Arabia.en
dc.publisherElsevier BVen
dc.subjectConstant-power driving LEDen
dc.subjectLED controlen
dc.subjectLED drivingen
dc.subjectLED lightingen
dc.subjectLED lighting controlen
dc.titleDevelopment of constant-power driving control for light-emitting-diode (LED) luminaireen
dc.typeArticleen
dc.identifier.journalApplied Thermal Engineeringen
dc.contributor.institutionNational Taiwan University, Taipei, Taiwanen
kaust.grant.numberKUK-C1-014-12en
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