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双相交错耦合电感升压变换器的小信号模型

Small-Signal Model of the Two-Phase Interleaved Coupled-Inductor Boost Converter

语言:

中文摘要

本文推导了在连续导通模式(CCM)和断续导通模式(DCM)下,采用单磁芯耦合电感的双相交错DC-DC升压变换器的完整小信号模型。该模型解决了耦合电感变换器在不同工作模式下复杂性带来的建模难题,为变换器的控制设计提供了理论基础。

English Abstract

A coupled-inductor dc-dc converter has several modes of operation in continuous-conduction mode (CCM) and discontinuous-conduction mode (DCM), and is quite complex. This paper presents the derivation of the complete small-signal model of a two-phase interleaved dc-dc boost converter utilizing a single-core coupled-inductor operating in both CCM and DCM. Several small-signal models are required to ...
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SunView 深度解读

该研究针对耦合电感升压拓扑的小信号建模,对阳光电源的储能变流器(PCS)及组串式光伏逆变器中的DC-DC升压级具有重要参考价值。在PowerTitan等储能系统中,采用交错并联技术可有效减小输入电流纹波并提升功率密度。通过精确的小信号建模,研发团队能更精准地设计闭环控制参数,提升系统在宽电压范围下的动态响应速度与稳定性。建议在后续高功率密度PCS产品研发中,利用该模型优化控制环路,以应对复杂工况下的系统稳定性挑战。