论文标题
基于谐波平衡的功率流和ZVS分析四桥DC-DC转换器
Harmonic-Balance Based Power Flow and ZVS Analysis of a Quad-Active Bridge DC-DC Converter
论文作者
论文摘要
多活动桥转换器的功率流控制需要对转换器进行全面的稳态分析，并确定转换器中所有切换的零电压切换条件的确定，从而导致最小开关损耗。本文旨在对四桥（QAB）DC-DC转换器进行建模和执行功率流和零电压开关（ZVS）分析。进行了转换器的动态和稳态分析，从而确定满足命令负载功率所需的相移。使用包括绕组电阻和磁性电感的完整等效电路模型，而不是流行的无损耗星形电路模型，该模型可能会在转换器的分析中引入重大误差。确保在ZVS模式下工作的转换器的条件得到确定并通过实验验证。
The power flow control of multi-active bridge converters requires a comprehensive steady-state analysis of the converter and the determination of conditions for zero voltage switching of all switching in the converter which result in minimum switching loss. This paper aims to model and carry out the power flow and Zero Voltage Switching (ZVS) analyses of Quad-active-bridge (QAB) dc-dc converter. The dynamic as well as the steady state analyses of the converter were carried out, thereby determining the phase shifts required to meet commanded load powers. The full equivalent circuit model of the converter which include winding resistances and magnetizing inductances is used rather than the popular lossless star-equivalent circuit model that may introduce significant error in the converter's analysis. The conditions which ensure the converter working in ZVS mode are determined and experimentally verified.
