Xiaofan Cui, Al-Thaddeus Avestruz
Stability guarantees are critical for cycle-by-cycle controlled dc-dc converters in consumer electronics and energy storage systems. Traditional stability analysis on these converters is incomplete as it considers inductor current ramps fixed, whereas they depend on output voltage in large-signal transients. This paper presents a new large-signal stability theory treating these converters as a specific feedback interconnection system. The authors provide an analytical and practical stability criterion based on this framework, revealing the L/R and RC time constants as key design parameters influencing the coupling between current ramp and output voltage. The focus is primarily on current-mode dc-dc converters, which are widely used in point-of-load regulators and battery management systems. A comparison reveals that existing large-signal stability analysis typically treats the current and voltage blocks as decoupled, potentially leading to inadequate stability assessments. The findings contribute significantly to the understanding of large-signal dynamics in current-mode controlled converters, addressing gaps in existing literature and offering practical insights for design improvements.
@article{cfd2d6c5-b0f1-46d4-83e9-439a0ba7d09c,
title={Large-Signal Stability Guarantees for},
author={Xiaofan Cui and Al-Thaddeus Avestruz},
year={2019},
language={English}
}TY - JOUR TI - Large-Signal Stability Guarantees for AU - Xiaofan Cui AU - Al-Thaddeus Avestruz PY - 2019 LA - English ER -
Zhi-Wei Liu, Wang-Bing Yu
In order to address the challenge of traditional sliding mode controllers struggling to balance between suppressing system jitter and accelerating con
Lei Kou, Chuang Liu
A fault diagnosis method for power electronics converters based on deep feedforward network and wavelet compression is proposed in this paper. The tra
Umair Shahzad
The increasing demand of large scale wind integration in the conventional power system brings a lot of challenges. One of them is the stability of the
Ali Parsa Sirat, Niloofar Zendehdel
In this paper, an optimal approach based on on-off controller is used to optimally control a DC-DC step-down converter. It is shown that the conventio
Hajar Doubabi, Issam Salhi
Appropriate control contributes essentially in the design of efficient DC-DC converters. With this intention, a study deals with the synthesis of a co
H. Shayeghi, S. Pourjafar
This study presents the modeling, control design, and performance analysis of a DC-DC buck converter using state-space averaging techniques, which are