TY - GEN
T1 - Time domain identification of PWM converters for digital controllers design
AU - Peretz, Mor Mordechai
AU - Ben-Yaakov, Sam
PY - 2007/12/1
Y1 - 2007/12/1
N2 - A discrete time-domain based system identification method for PWM DC-DC converters is presented. The proposed procedure is capable of successfully reconstructing the system's model from an arbitrary excitation at the command input. In this study, a step perturbation was applied, which is simple to apply and has an intuitive interpretation of the output response. The effects of switching and quantization noise were overcome by choosing the sampling instance to be after the switching oscillations decay significantly and by averaging the responses of synchronously perturbed sequences. The proposed method was evaluated on Buck and Boost converters. The digital data acquisition procedure was implemented on a TMS320F2407 DSP core. Excellent agreement was found between simulations and experimental results.
AB - A discrete time-domain based system identification method for PWM DC-DC converters is presented. The proposed procedure is capable of successfully reconstructing the system's model from an arbitrary excitation at the command input. In this study, a step perturbation was applied, which is simple to apply and has an intuitive interpretation of the output response. The effects of switching and quantization noise were overcome by choosing the sampling instance to be after the switching oscillations decay significantly and by averaging the responses of synchronously perturbed sequences. The proposed method was evaluated on Buck and Boost converters. The digital data acquisition procedure was implemented on a TMS320F2407 DSP core. Excellent agreement was found between simulations and experimental results.
UR - http://www.scopus.com/inward/record.url?scp=48349135259&partnerID=8YFLogxK
U2 - 10.1109/PESC.2007.4342092
DO - 10.1109/PESC.2007.4342092
M3 - Conference contribution
AN - SCOPUS:48349135259
SN - 1424406552
SN - 9781424406555
T3 - PESC Record - IEEE Annual Power Electronics Specialists Conference
SP - 809
EP - 813
BT - PESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
T2 - PESC 07 - IEEE 38th Annual Power Electronics Specialists Conference
Y2 - 17 June 2007 through 21 June 2007
ER -