Symmetrical multilevel converters with two quadrant DC-DC feeding

By N. Schibli. 2000

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Efficiency-Optimized High-Current Dual Active Bridge Converter for Automotive Applications (2012, background): “, [19]): the amplitudes of the fundamental components of vT1 and vT2 are V1,f = 4V1 sin(πD1)/π and V2,f = 4V2 sin(πD2)/π, respectively, and φ is the phase shift between the cosine-shaped functions of the fundamental components.”
Closed Form Solution for Minimum Conduction Loss Modulation of DAB Converters (2012, background): “(TCM): TCM is extensively discussed in [21], typical waveforms of vac1 , vac2 , and iL are depicted in Fig.”
Isolated DC/DC Structure Based on Modular Multilevel Converter (2015, background): “Lowest switching losses are achieved with a step modulation [37], i.”
Minimum Current Operation of Bidirectional Dual-Bridge Series Resonant DC/DC Converters (2012, background): “An extensive review of modulation techniques for high-power DAB converters is provided in [18].”
A Single-Stage Dual-Active-Bridge-Based Soft Switched AC–DC Converter With Open-Loop Power Factor Correction and Other Advanced Features (2014, background): “It is possible to overcome these difficulties by modulating the duty cycles of both the bridges [20] [21].”
Modeling of Soft-Switching Losses of IGBTs in High-Power High-Efficiency Dual-Active-Bridge DC/DC Converters (2013, background): “modulation scheme studied in [13]–[15] were measured.”