On the Accuracy of a Time-Domain Identification Method for a DC-DC Buck Converter

被引：0
|
作者：
Andries, Vasilica-Daniela [1 ]
Goras, Liviu [1 ,2 ]
David, Emilian [3 ]
Buzo, Andi [3 ]
Pelz, Georg [3 ]
机构：
[1] Gheorghe Asachi Tech Univ, ETTI, Iasi, Romania
[2] Romanian Acad, Inst Comp Sci, Iasi Branch, Iasi, Romania
[3] Infineon Technol, Bucharest, Romania
来源：
2019 INTERNATIONAL SYMPOSIUM ON SIGNALS, CIRCUITS AND SYSTEMS (ISSCS 2019) | 2019年
关键词：
System identification; time domain estimation; ADC quantization estimation; DC-DC Buck converter; PRBS;
D O I：
10.1109/isscs.2019.8801764
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper describes a discrete time-domain system identification method applied on a DC-DC Buck converter with software control loop. The essence of the method consists in estimating a transfer function of the DC-DC Buck converter that approximates with good accuracy the open loop dynamics of the output of the converter considering as input the PWM control signal. The technique uses an improved approach to enhance the precision of estimation by performing an additional optimization. An analysis of the identification process is made and the influence of several parameters is discussed. The method is verified through experimental results.
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页数：6
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