Abstract
This paper deals with the design, modeling, analysis and simulation of power factor-corrected and low crest factor-based electronic ballast for a compact fluorescent lamp. The proposed electronic ballast is a combination of a buck–boost ac–dc converter as power factor regulator operating in discontinuous conduction mode and a half bridge series resonant inverter, which is used for converting constant dc link voltage into high-frequency ac voltage to drive the fluorescent lamp. The design, modeling and simulation of this topology are performed using MATLAB-Simulink for an 18 W, 220 V, 50 Hz compact fluorescent lamp. With the utilization of proper commutation techniques like zero voltage switching, the overall switching losses are reduced at high operating frequency of 60 kHz. The power quality indices such as displacement power factor, distortion factor, total harmonic distortion of ac mains current, power factor and crest factor are evaluated for proposed electronic ballast, which is found as per IEC-61000-3-2 class C requirements.
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Appendix
Appendix
Rated lamp power: 18 W, rated lamp current: 0.1636 A, rated lamp voltage: 110 V, switching frequency \((f_\mathrm{s})\): 60 kHz, PI controller gains \((K_\mathrm{p})\): 0.0005, \((K_\mathrm{i})\): 0.0021, Buck–boost inductor \((L_\mathrm{bb})\): 4 mH, dc link capacitor \((C_\mathrm{o})\): 18 \(\mu \)F, Resonant parameters: - resonant inductor \((L_\mathrm{r})\): 3 mH, dc blocking capacitor \((C_\mathrm{b})\): 45 nF, resonant capacitor \((C_\mathrm{p})\): 3 nF.
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Shrivastava, A., Singh, B. Power factor-corrected DCM-based electronic ballast. Electr Eng 95, 403–411 (2013). https://doi.org/10.1007/s00202-012-0269-z
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DOI: https://doi.org/10.1007/s00202-012-0269-z