(PLECS: Dual Active Bridge) 1 概述(Overview) 本演示展示了一个双有源桥(DAB)转换器。DAB是一种双向DC-DC变换器,具有相同的一次侧和二次侧全桥、高频变压器、能量转移电感和直流链路电容器。这里的系统规格是95 VDC的输入电压、380 VDC的输出电压和250 kHz的开关频率。该模型包含一个以两种配置实现的变压器:...
采样的开关信号在每个模型步骤上进行时间平均,以实现PWM输入的高保真分辨率。为了在模拟中利用时间平均PWM输入,使用了“IGBT全桥(串联)IGBT Full Bridge (Series Connected)”功率模块,并选择了“子周期平均sub-cycle average”配置[1]。 图2:DAB工厂模型示意图 模拟输出模块提供控制器子系统所需的模拟信号,如电池电流...
図3. 正の電力フローでの Dual Active Bridge の単相動作。インダクターの上の紫色の線は、インダクター電流のプロットです。インダクターの下の 2 つの矩形波は 2 つの PWM 信号です。この例では、各モードをわかりやすく可視化するために、誇張して 45 度の正の位相シフトを使用していま...
网络释义 1. 双有源桥 0引言隔离式双向全桥DC/DC变换器,又称双有源桥(Dual Active Bridge),这种隔离式DC/DC变换器的优势在于:中(高)频变压器能 … www.cnki.com.cn|基于 1 个网页
The PET offers bidirectional power flow between single phase AC and DC, using the Dual Active Bridge (DAB) principle. Such a system may find applications in interfacing plug-in hybrid and electric vehicles to the grid. The proposed PET offers advantages of (a) open loop unity power factor ...
This paper describes a high step-down unregulated, fixed-ratio DC-DC converter (DCX) based on the dual active bridge (DAB) power stage operating at high switching frequency using enhancement-mode Gallium-Nitride-on-Silicon (GaN) transistors. The DAB power stage design as well as a comparison ...
Optimized Design of Bi-Directional Dual Active Bridge Converter for Low-Voltage Battery Charger This study proposes an optimized design of a dual active bridge converter for a low-voltage charger in a military uninterrupted power supply (UPS) system. ... DK Jeong,MH Ryu,HG Kim,... - 《Journ...
27, NO. 4, APRIL 2012Generalized Average Modeling of Dual ActiveBridge DC–DC ConverterHengsi Qin, Student Member, IEEE, and Jonathan W. Kimball, Senior Member, IEEEAbstract—Full-ordercontinuous-timeaveragemodelinganddy-namic analysis of bidirectional dc–dc dual active bridge (DAB)converters are...
This example shows the operation of a single-phase Dual Active Bridge (DAB) DC/DC converter.Description The single-phase Dual Active Bridge (DAB) converter is a highly efficient isolated bidirectional DC-to-DC converter. Its key features are: Isolated operation Power density (high frequency ...