Method for suppressing transient DC bias of three-port isolated DC/DC converter
A DC bias and isolation technology, which is used in conversion devices and instruments that convert DC power input into DC power output and output power. Excitation inductor DC bias and other issues
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[0059]The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0060] 1. TAB working principle under phase shift control
[0061] 1.1 TAB equivalent circuit model
[0062] figure 1 The topology of the isolated TAB converter studied for the present invention is mainly composed of three voltage source H-bridge modules, an inductor and a high-frequency transformer. The transformation ratio of the three-winding transformer is 1:n 2 :n 3 , the DC voltage of each H-bridge port is V dc1 , V dc2 and V dc3 , the ...
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