几何数字控制和超快Dc-Dc变换器响应增强的可行性

2006 IEEE Workshops on Computers in Power Electronics Pub Date : 2006-07-16 DOI:10.1109/COMPEL.2006.305651

P. Krein

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引用次数: 34

摘要

介绍了一套基于增强的DC-DC转换器控制。该控制器支持对基本DC-DC转换器的线路或负载干扰的零响应。增强类似于有损缓冲器，采用开关电阻的形式来耗散额外的存储能量，电阻路径在能量存储增加时向负载传递能量，以及来自增强相的开关电容在瞬态期间维持负载。给出了线路阶跃增加和减少的情况，以及降压和升压变换器阶跃负载增加和减少的情况。结果表明，基于直接能量计算的设计即使在极端瞬变期间也能保持在指定输出纹波带内的性能

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Feasibility of Geometric Digital Controls and Augmentation for Ultrafast Dc-Dc Converter Response

A set of augmentation-based controls is introduced for DC-DC converters. The controls support null response to disturbances in line or load for basic DC-DC converters. Augmentation resembles lossy snubbers, and takes the form of switched resistance to dissipate extra stored energy, resistive paths to deliver energy to the load while energy storage is increasing, and switched capacitance from an augmented phase to maintain the load during a transient. Cases are given for line step increases and decreases, and step load increases and decreases for buck and boost converters. It is shown that designs based on straightforward energy computations yield performance that remains within the specified output ripple band even during extreme transients

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来源期刊

2006 IEEE Workshops on Computers in Power Electronics

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