Title :
Acoustic Resonance Avoidance in High Pressure Sodium Lamps Via Third Harmonic Injection in a PWM Inverter-Based Electronic Ballast
Author :
Morais, Lenin Martins Ferreira ; Donoso-Garcia, Pedro Francisco ; Seleme, Seleme Isaac, Jr. ; Cortizo, Porfírio Cabaleiro
Author_Institution :
Univ. Fed. de Minas Gerais, Belo Horizonte
fDate :
5/1/2007 12:00:00 AM
Abstract :
Third harmonic injection in the high pressure sodium lamp voltage by means of a controlled pulsewidth modulation inverter is studied in this paper. It can be shown that acoustic resonance can be avoided by using this technique with a judicious amount of third harmonic injection. Furthermore, the crest factor in the lamp current can also be reduced
Keywords :
PWM invertors; acoustic resonance; lamp accessories; lamps; PWM inverter; acoustic resonance avoidance; crest factor; electronic ballast; high pressure sodium lamps; pulsewidth modulation inverter; third harmonic injection; Acoustic pulses; Electronic ballasts; Fault location; Fluctuations; Frequency; Lamps; Pulse width modulation; Pulse width modulation inverters; Resonance; Switches; Acoustic resonance (AR) avoidance; harmonic injection; high pressure sodium (HPS) lamps; pulsewidth modulation (PWM);
Journal_Title :
Power Electronics, IEEE Transactions on
DOI :
10.1109/TPEL.2007.896993
