Modular Realization of Capacitive Converters Based on General Transposed Series–Parallel and Derived Topologies
Modular Realization of Capacitive Converters Based on General Transposed Series–Parallel and Derived Topologies
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基于通用转置串并联及派生拓扑的电容式变换器的模块化实现
DOI：
10.1109/tie.2013.2257144
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发表时间：
2014
影响因子：
7.7
通讯作者：
L. Martínez
中科院分区：
文献类型：
--
作者：
Y. Beck;S. Singer;L. Martínez
本文提出并分析了基于模块化方法的电容变换器的实现。转换器基于具有相同电容器的拓扑结构。首先，给出了基本串并联拓扑的交换网络（SN）。分析揭示了将拓扑结构扩展到任意数量电容器的组装和生长规则。随后，提出了更通用和复杂的通用转置串并联（GTSP）拓扑的SN。通过定义一个基本单元，包括一个电容器和五个外围开关，扩展了拓扑结构。该变换器的扩展通过改善直流/直流电压比的精度和调节来改善其性能。本文还介绍了这些变换器的控制方案，重点介绍了GTSP拓扑结构，该拓扑结构的开关没有预先分配。描述了实现所需电压比的控制方案。在开环模式下建立了一个五电容变换器及其控制，并给出了与分析预测完全一致的实验结果。
The realization of capacitive converters based on a modular approach is presented and analyzed in this paper. The converters are based on topologies with identical capacitors. First, the switching network (SN) of a basic series-parallel topology is presented. The analysis reveals the assembly and growth rules for expanding the topology to any number of capacitors. Subsequently, the SN for the more versatile and complex general transposed series-parallel (GTSP) topology is presented. The topology is expanded by defining a basic cell comprising a capacitor and five peripheral switches. The expansion of this converter improves its performance by ameliorating accuracy and regulation in the dc/dc voltage ratio. The control schemes of these converters are also presented with emphasis on the GTSP topology, whose switches are not assigned in advance. The control scheme for achieving the desired voltage ratio is described. A five-capacitor converter with its control is built to illustrate the theory in open-loop mode, which provides experimental results that are in full agreement with the analytical predictions.