Stability study and control methods for small-wattage high-intensity-discharge (HID) lamps

Wei Yan; Y. K.E. Ho; S. Y.R. Hui

doi:10.1109/28.952530

Stability study and control methods for small-wattage high-intensity-discharge (HID) lamps

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Overview

85 Scopus Citations

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Author(s)

Wei Yan
Y. K.E. Ho
S. Y.R. Hui

Related Research Unit(s)

Department of Electrical Engineering

Detail(s)

Original language	English
Pages (from-to)	1522-1530
Journal / Publication	IEEE Transactions on Industry Applications
Volume	37
Issue number	5
Publication status	Published - Sept 2001

Link(s)

DOI	DOI https://doi.org/10.1109/28.952530 Final Published version
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Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-0035438943&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(30df058b-9733-4792-b2f0-d2fda46d8e4d).html

Abstract

The increasing speed of modern power electronics opens a way to study the stability of high-intensity-discharge lamps at very-high-frequency operation. In this paper, a lamp stability study based on a simplified theory on acoustic resonance frequency distribution in a small-wattage metal-halide (MH) lamp is presented. The frequency characteristic of a low-wattage MH lamp has been analyzed. Up to 700 kHz, extensive experiments using resonant-type electronic ballast have been conducted on 35-W MH lamps to investigate different control methods for avoiding acoustic resonance. The results indicate that a randomized switching scheme cannot always eliminate arc instabilities caused by acoustic resonances in small-wattage MH lamps. The stability frequency regions should be identified. A stable arc can be obtained when the lamp is operated above the highest acoustic resonance frequency.

Research Area(s)

Acoustic resonance, Extra-high-frequency electronic ballast, High-intensity discharge lamps, Metal-halide lamps, Randomized switching scheme

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