A Loss-Free Resistor-Based Versatile Ballast for Discharge Lamps

Hugo Valderrama-Blavi, Antonio Leon-Masich, Carlos Olalla and Àngel Cid-Pastor
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Hugo Valderrama-Blavi: Department of Electrical, Electronic, and Automatic Control Engineering (DEEEA), Universitat Rovira i Virgili, 43007 Tarragona, Spain
Antonio Leon-Masich: Department of Electrical, Electronic, and Automatic Control Engineering (DEEEA), Universitat Rovira i Virgili, 43007 Tarragona, Spain
Carlos Olalla: Department of Electrical, Electronic, and Automatic Control Engineering (DEEEA), Universitat Rovira i Virgili, 43007 Tarragona, Spain
Àngel Cid-Pastor: Department of Electrical, Electronic, and Automatic Control Engineering (DEEEA), Universitat Rovira i Virgili, 43007 Tarragona, Spain

Energies, 2019, vol. 12, issue 7, 1-20

Abstract: This paper presents a versatile ballast for discharge lamps, whose operation is based on the notion of a loss-free resistor (LFR). The ballast consists of two stages: (1) a boost converter operating in continuous conduction mode (CCM) and exhibiting an LFR behavior imposed by sliding-mode control; and (2) a resonant inverter supplying the discharge lamp at high frequencies. Thanks to this mode of operation, the power transferred to the lamp is regulated by the LFR input resistance, allowing successful ignition, warm-up, nominal, and dimming operation of a range of discharge lamps, with no need for complex regulation schemes based on lamp models. The versatility of the ballast has been experimentally proven for both conventional and electrodeless discharge lamps. Tests include induction electrodeless fluorescent (IEFL), high-pressure sodium (HPS) vapor, and metal-halide lamps.

Keywords: Induction Electrodeless Fluorescent Lamps (IEFL); High-Intensity Discharge Lamps (HID); sliding-mode control; loss-free resistor (LFR) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
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