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A high-gain boost converter based on three-winding coupled inductance and its working method

A coupled inductor, three-winding technology, applied in the field of high-gain boost converters, can solve problems such as high voltage stress, high input current ripple, and low efficiency

Active Publication Date: 2021-03-09
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a working method of a high-gain Boost converter based on a three-winding coupled inductor, which is used to solve the problem of high input current ripple and voltage stress of the Boost converter in the prior art. high and low efficiency

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  • A high-gain boost converter based on three-winding coupled inductance and its working method
  • A high-gain boost converter based on three-winding coupled inductance and its working method
  • A high-gain boost converter based on three-winding coupled inductance and its working method

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Embodiment Construction

[0066] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0067] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the comp...

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Abstract

The invention provides a high-gain Boost converter based on a three-winding coupled inductor and its working method, including a Boost boost unit, an auxiliary boost unit, a voltage doubler unit and a low ripple unit, and the Boost boost unit includes a primary winding, a second A switch tube, a second switch tube, and a fourth capacitor and a fifth capacitor connected in series, the anode of the power supply is connected to the opposite end of the first winding, and the same end of the primary winding is respectively connected to the drain of the first switch tube and the second switch The source of the tube, the source of the first switch tube and the drain of the second switch tube are respectively connected to the two ends of the fifth capacitor, and the negative pole of the power supply is connected to the source of the first switch tube; The problem of low efficiency of Boost converter in technology.

Description

technical field [0001] The invention belongs to the field of power electronic converters, in particular to a working method of a high-gain Boost converter based on a three-winding coupled inductor. Background technique [0002] Clean energy such as solar energy and wind energy has become an important new energy source. The output voltage of photovoltaic modules generally does not exceed 50V. In order to realize the grid connection of photovoltaic energy, the output voltage of photovoltaic modules needs to be boosted to a DC bus voltage of 380-400V. Therefore, high-gain, high-efficiency DC-DC converters have attracted more and more attention from domestic and foreign researchers. [0003] The high-gain Boost converters proposed by researchers at home and abroad can be mainly divided into: 1) Cascaded Boost converters, which use the output of the front-stage converter as the input of the rear-stage converter, so that the voltage gain increases in steps, and the total The vol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158H02M1/14
CPCH02M1/14H02M3/158H02M1/0058Y02B70/10
Inventor 周美兰李晨张宇吴晓刚
Owner HARBIN UNIV OF SCI & TECH
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