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Frequency conversion control method, device, storage medium and half-double bridge resonant converter

A resonant converter, frequency conversion control technology, applied in control/regulation system, output power conversion device, DC power input conversion to DC power output, etc., can solve the problem that the working range of LCC resonant DC-DC converter is small and cannot be realized Full load soft switching control and other issues, to achieve the effect of small electromagnetic interference, improve conversion efficiency, and reduce conduction loss

Active Publication Date: 2021-02-23
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

[0004] The object of the present invention is to provide a frequency conversion control method, device, storage medium and half-double bridge resonant converter to solve the problem that the operating range of the LCC resonant DC-DC converter is small and cannot realize full load softness. The problem of switch control can achieve the effect of soft switch control of full load

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  • Frequency conversion control method, device, storage medium and half-double bridge resonant converter
  • Frequency conversion control method, device, storage medium and half-double bridge resonant converter

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only 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.

[0043] According to an embodiment of the present invention, a frequency conversion control method is provided, such as figure 1 A schematic flow diagram of an embodiment of the method of the present invention is shown. The frequency conversion control method may be applied to a half-double bridge resonant converter, and the frequency conversion control method of ...

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Abstract

The invention discloses a frequency conversion control method, device, storage medium and half-double bridge resonant converter. The method includes: obtaining the voltage gain of the half-double bridge resonant converter; determining whether the voltage gain of the half-double bridge resonant converter is less than the set fixed value; if the voltage gain of the half-double-bridge resonant converter is less than the set value, the frequency conversion control combining frequency conversion speed regulation and phase-shift control will be implemented to realize the soft switching control of the full load range of the half-double-bridge resonant converter . The solution of the present invention can solve the problem that the LCC resonant DC-DC converter has a small working range and cannot realize full-load soft-switching control, and achieves the effect of being able to realize full-load soft-switching control.

Description

technical field [0001] The invention belongs to the technical field of power supply control, and in particular relates to a frequency conversion control method, device, storage medium and half-double-bridge resonant converter, and especially relates to a frequency conversion and speed regulation based on a half-double-bridge LC resonant DC-DC converter. Frequency conversion control method, device, storage medium and half double bridge resonant converter (such as half double bridge LC resonant DC-DC converter) combined with phase shift control. Background technique [0002] Some LCC resonant DC-DC converters adopt phase-shift control strategy, and the working range is small, so it cannot realize soft switching control of full load. [0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not mean that the above content is admitted as prior art. Contents of the invention [0004] The object of the present i...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/335
CPCH02M3/33576H02M1/0058Y02B70/10
Inventor 黄瀑雷龙方明占瞿浩张纪东高小丽王习文郭岩
Owner GREE ELECTRIC APPLIANCES INC
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