First-Principle Modeling Framework of Boost Converter Dynamics for Precise Energy Conversions in Space
Abstract
Boost converters are essential for modern electrification and intelligent technologies. However, conventional Boost converter models relying on steady-state assumptions fail to accurately predict transient behaviors during input voltage and load fluctuations, which cause significant output voltage overshoots and instability, resulting in failures of electrical systems, thereby restricting their use in space. This study introduces a first-principle modeling framework that derives precise dynamic equations for Boost converters by incorporating non-ideal component coupling. As compared to the most accurate existing Boost converter model, the proposed models reduce steady-state and dynamic-state errors between experimental and simulated output voltages by factors of 11.0 (from 20.9% to 1.9%) and 15.4 (from 77.1% to 5.0%) under input voltage variations, and by factors of 10.2 (from 15.3% to 1.5%) and 35.1 (from 42.1% to 1.2%) under load changes, respectively. Consequently, a reliable Boost converter is accordingly designed and on-orbit deployed for precise energy conversions.
Keywords
Cite
@article{arxiv.2509.06425,
title = {First-Principle Modeling Framework of Boost Converter Dynamics for Precise Energy Conversions in Space},
author = {Yifan Wang and Wenhua Li and Zhenlong Wang and Xinrui Zhang and Jianfeng Sun and Qianfu Xia and Zhongtao Gou and Jiangang Rong and Tao Ye},
journal= {arXiv preprint arXiv:2509.06425},
year = {2025}
}
Comments
24 pages, 30 pages supplementary material, 5 figures, 14 supplementary figures, 6 supplementary tables