Power supply improvements for ballasts-low pressure mercury/argon discharge lamp for water purification

Bokhtache, Aicha Aissa; Zégaoui, Abdallah; Djahbar, Abdelkader; Allouache, Hadj; Hemici, K.; Kessaissia, Fatma Zohra; Bouchrit, M. S.; Aillerie, Michel

doi:10.1063/1.4976278

Cited by 2 publications

(1 citation statement)

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“…The load used in the simulation is a specific discharge lamp described in references (Aissa Bokhtache et al , 2017). The table below presents the main characteristics of the lamp: Transfer function of the system Discharge lamp-Electronic ballast(Aissa Bokhtache et al, 2017). The total impedance of the discharge lamp-electronic ballast system is given by:…”

Section: Characteristics Of the Load Usedmentioning

confidence: 99%

Modern Control of a Power Supply Based on a Matrix Converter for Water Disinfection by UVC Radiation

AICHA,

MAAMAR,

ASMA

et al. 2023

EPSTEM

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Water, an essential resource, has been facing gradual deterioration in quality over an extended period. Water treatment has emerged as a critical concern, with a long-standing acknowledgment of the importance of preserving and appreciating this precious resource. UV-C technology has proven to be an ideal solution that effectively addresses these twin needs. The core principle of UV bactericidal treatment revolves around generating ultraviolet rays within a treatment chamber filled with water. Consequently, ensuring a dependable power source for low-pressure mercury-argon discharge lamps has become imperative to guarantee the efficiency of UV-C disinfection.The primary goal of this study is to supply our discharge lamp with a current source that produces a sinusoidal current at its output, featuring a frequency of 50 kHz and an effective value of 0.65 A. Electronic ballasts enable lamps to enhance radiation quality by operating at high frequencies, and the selection of a power supply is a response to this specific challenge.The aim of this research centers on the utilization of a single-phase matrix converter. The bidirectional switching cells within this converter offer frequency-related advantages. To achieve the desired magnitude and frequency, we employed a PWM control strategy. Subsequently, we implemented a linear current adjustment approach using two controllers: a Proportional-Integral (PI) controller and a Generalized Predictive Control (GPC) in the RST polynomial form. This was done to ensure a high-quality current source with the desired waveform and low Total Harmonic Distortion (THD).The research outcomes have led to environmental simulations conducted using Matlab/Simpower system and Matlab/Simulink.

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Section: Characteristics Of the Load Usedmentioning

confidence: 99%