TY - GEN
T1 - Dynamic study of the time constant in high intensity discharge lamps
AU - Juárez, M. A.
AU - Ponce, M.
AU - Arau, J.
AU - Flores, E.
AU - Osorio, R.
AU - González, L. H.
PY - 2009
Y1 - 2009
N2 - Recent publications have established that the lamp time constant is an important factor to determine the stability of the lamp-ballast system. Different tests based on step response have been employed to obtain the dynamic characteristics of the lamp. These tests consist on applying a current or voltage pulse in order to obtain the lamp time constant. Nevertheless, a study that determines if the lamp time constant is the same in both cases has not been developed yet. On the other hand, the lamp time constants only have been tested in a single operation point, ignoring the effect of the limiting impedance (ballast). This paper presents a study about the lamp time constants and the interaction between time constants and ballast. This study concludes that the dominant dynamics of the lamp are determined by the gas thermal constant, which is extracted from the lamp current.
AB - Recent publications have established that the lamp time constant is an important factor to determine the stability of the lamp-ballast system. Different tests based on step response have been employed to obtain the dynamic characteristics of the lamp. These tests consist on applying a current or voltage pulse in order to obtain the lamp time constant. Nevertheless, a study that determines if the lamp time constant is the same in both cases has not been developed yet. On the other hand, the lamp time constants only have been tested in a single operation point, ignoring the effect of the limiting impedance (ballast). This paper presents a study about the lamp time constants and the interaction between time constants and ballast. This study concludes that the dominant dynamics of the lamp are determined by the gas thermal constant, which is extracted from the lamp current.
KW - High intensity discharge (HID) lamp
KW - Metal halide discharge (MHD) lamp
UR - http://www.scopus.com/inward/record.url?scp=72949096350&partnerID=8YFLogxK
M3 - Contribución a la conferencia
AN - SCOPUS:72949096350
SN - 9781424444328
T3 - 2009 13th European Conference on Power Electronics and Applications, EPE '09
BT - 2009 13th European Conference on Power Electronics and Applications, EPE '09
T2 - 2009 13th European Conference on Power Electronics and Applications, EPE '09
Y2 - 8 September 2009 through 10 September 2009
ER -