DEVELOPMENT AND VALIDATION OF DYNAMIC CONDUCTANCE BASED WATTAGE INDEPENDENT MODEL FOR MAGNETIC BALLAST DRIVEN NON-RETROFIT CFLS

作者：Bakshi Biswadeep Gupta; Dutta Aparajita; Roy Biswanath^*

来源：Light & Engineering, 2016, 24(2): 65-76.

• wattage independent lamp model
• magnetic ballast
• Non-retrofit CFL
• dynamic conductance

This paper presents a wattage independent mathematical model for non-retrofit Compact Fluorescent Lamps (CFLs) driven by magnetic ballast at nominal frequency (50 Hz), which is implemented using Matlab-Simulink. This developed model reproduces time-dependent electrical behavioural pattern of lamp system taking supply voltage as input and is modified form of existing dynamic conductance model, in which the rate of change of charge carriers inside the discharge tube is represented by physical phenomena, viz. ionization, recombination and wall diffusion. In the pre-existing model, four coefficients A, B, C and D are used to describe these physical phenomena for a particular wattage lamp and model implementation is done without considering electrical parameters of the ballast, however, it is replaced by a sinusoidal current source. Whereas, this modified wattage independent model includes magnetic ballast with its electrical parameters and applicable for a range of lamp wattage (7-18) W. The developed model is compared with a test lamp of 9 W throughout a wide range of supply voltage (200-260) V. Simulation results show close approximation of the actual lamp system and the developed model can be utilised for ballast design.

• 出版日期2016