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논문 기본 정보

자료유형
학술대회자료
저자정보
Haoyang Gan (Southwest Jiaotong University) Shengzhong He (Southwest Jiaotong University) Xiaoqiong He (Southwest Jiaotong University) Songrong Wu (Southwest Jiaotong University) Ping Yang (Southwest Jiaotong University) Minrui Leng (Southwest Jiaotong University)
저널정보
전력전자학회 ICPE(ISPE)논문집 ICPE 2019-ECCE Asia
발행연도
2019.5
수록면
2,402 - 2,408 (7page)

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V² control has fast transient response so it has been widely used voltage regulator modules. Although valley V² control has been proposed to control boost converter, there still exist instability issues. To stabilize instability caused by small duty or equivalent series resistance of output capacitor, external ramp compensation has been used. However, there is no reference for choosing proper ramp slope. In this paper, a discrete iterative model of valley V² controlled boost converter with external ramp compensation is established. Based on the model, bifurcation behaviors under different duty cycle and ESR are observed as equivalent ramp slope increases. The orbit of converter transfers from chaos to multi-period then to period-1, consistent with maximal Lyapunov exponent. By analyzing loci of eigenvalues, stability boundaries in different operation regions are obtained to guide equivalent ramp slope design. Experimental prototype is also built up to verify the theoretical analysis.

목차

Abstract
I. INTRODUCTION
II. DISCRETE ITERATIVE MODEL
III. STABILITY ANALYSIS
IV. EXPERIMENTAL VERIFICATION
V. CONCLUSIONS
REFERENCES

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