High-voltage isolation voltage-withstanding series planar transformer and transformer voltage compensation method

Abstract

The invention belongs to the field of high-voltage isolation voltage-withstanding transformers, particularly relates to a high-voltage isolation voltage-withstanding series planar transformer and a method, and aims to solve the problems that a conventional high-voltage high-frequency transformer is low in voltage-withstanding level, complex in structure, large in size and high in cost. The high-voltage isolation voltage-withstanding series planar transformer comprises a high-voltage isolation voltage-withstanding series planar transformer consisting of N planar transformers which are connected in series through magnetic flux coupling of a winding and a magnetic core; the N planar transformers are respectively connected in parallel with N voltage-sharing elements used for realizing voltage balance among windings of the N planar transformers, and the N voltage-sharing elements are connected in series; the N planar transformers comprise N magnetic cores, N + 1 windings and N voltage-sharing elements (N > = 2). The high-voltage isolation voltage-withstanding series planar transformer has the advantages of being simple in structure, small in size, low in cost and high in efficiency, and is particularly suitable for being applied to high-voltage direct-current power supplies and other applications with high requirements for insulation and voltage withstanding.

Description

technical field [0001] The invention belongs to the field of high-voltage isolation and withstand voltage transformers, and in particular relates to a high-voltage isolation and withstand voltage series planar transformer. Background technique [0002] High-voltage DC power supply is the core equipment in applications such as electrostatic dust removal, vacuum electron beam welding, and X-ray imaging. It converts low-voltage AC / DC power of several hundred volts into a DC voltage of thousands of volts or tens of thousands of volts to supply power to the output load. . As the power device of the system, the technical level of the high-voltage DC power supply directly affects the performance of the whole system. Miniaturization, light weight, high efficiency and high reliability have always been important goals for its development. [0003] The high-frequency high-voltage DC power supply using high-frequency power electronic conversion technology has the advantages of small si...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, the conventional high-voltage and high-frequency transformers have low withstand voltage level, complex structure, large volume and high cost, the present invention provides a high-voltage isolation withstand voltage series planar transformer, the series series The planar transformer includes N planar transformers, where N≥2;

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