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DAB inductance loss calculation method based on inductive current characteristic value

A technology of inductance current and calculation method, applied in the direction of calculation, computer-aided design, electrical digital data processing, etc., to achieve the effect of ensuring reliability

Pending Publication Date: 2022-04-29
XI AN JIAOTONG UNIV
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide a kind of calculation method of DAB inductance loss based on the characteristic value of inductance current, to solve the deficiency of the existing calculation method for inductance loss of DAB circuit, the method of the present invention can pass the accurate calculation of the characteristic value of inductance current, and then Calculate the core loss and winding loss of the inductor, and evaluate the maximum temperature rise during its operation

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  • DAB inductance loss calculation method based on inductive current characteristic value
  • DAB inductance loss calculation method based on inductive current characteristic value
  • DAB inductance loss calculation method based on inductive current characteristic value

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[0074] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but 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.

[0075] In the description of the present invention, it needs to be explained that, unless otherwise clearly stated and limited, the terms "comprising" and "comprises" indicate the presence of the described features, integers, steps, operations, elements and / or components, but not The presence or addition of one or more other features, integers, steps, operations, elements, components and / or collections thereof is not excluded.

[0076] It should a...

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Abstract

The invention discloses a DAB inductance loss calculation method based on an inductive current characteristic value, and provides a current-based iGSE magnetic core loss calculation method for optimizing a traditional iGSE method for calculating magnetic core loss by calculating the inductive current characteristic value aiming at inductance loss and temperature rise of a dual-active bridge DAB circuit. And a winding loss expression based on current is given. The invention finally provides a method for calculating the total loss of the DAB inductor through the inductance current characteristic value, solves the problems that the calculation of the inductance loss is relatively long in consumed time and relatively complex, and provides an inductance loss calculation method with relatively high calculation accuracy for a DAB circuit. A designer can accurately estimate the temperature rise of the inductor in the design process, and the operation reliability of a DAB actual device is guaranteed.

Description

technical field [0001] The invention belongs to the field of design and verification of power electronic converters, and in particular relates to a DAB inductance loss calculation method based on the characteristic value of inductance current. Background technique [0002] Compared with traditional transformers, power electronic transformers have the advantages of high working efficiency, small size, and controllable output. Dual Active Bridge (DAB) was proposed by De Doncker in 1992. Due to the advantages of high power density, simple control and simple zero-voltage turn-on of DAB circuit, it has become the power transmission stage of medium and high power electronic converters. common topologies. A typical topology of a DAB includes a DC / AC link, an AC / DC link, a transformer, and an inductor. [0003] The power devices of traditional DAB circuits mostly use silicon devices, and their switching frequency and rated power are low, which limits the further improvement of the...

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Application Information

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IPC IPC(8): G06F30/373G06F119/08
CPCG06F30/373G06F2119/08
Inventor 王来利温浚铎靳浩源董晓博王振宇
Owner XI AN JIAOTONG UNIV