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Forward swiss rectifier based on resonance reset isolation

A rectifier and rectifier bridge technology, which is used in instruments, output power conversion devices, and DC power input to DC power output, etc. Ripple reduction effect

Pending Publication Date: 2020-02-21
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, excessive use also brings new problems, namely harmonic problems

Method used

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  • Forward swiss rectifier based on resonance reset isolation
  • Forward swiss rectifier based on resonance reset isolation
  • Forward swiss rectifier based on resonance reset isolation

Examples

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Embodiment Construction

[0020] 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. It should be noted that the embodiments described here are only some of the embodiments of the present invention, not the present invention. All implementations, the embodiments are only exemplary.

[0021] refer to figure 1 , a SWISS forward rectifier based on resonant reset isolation, including an input RC filter circuit, a rectifier bridge composed of six diodes, a harmonic injection circuit network composed of six diodes and six IGBTs, and two fast turn-off switch tubes (T+ and T), two high-frequency transformers and diodes D+ and D- form an isolated forward DC-DC converter, and finally an RLC output circuit is connected in series. The filter RC type filter circuit described herein has a capacitor common terminal grounded; the rectifier bridge and the harmonic in...

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Abstract

The invention relates to the field of power electronics, and in particular relates to a SWISS forward rectifier based on resonance reset isolation. The rectifier comprises an input RC filter circuit,a rectifier bridge composed of six diodes, a harmonic injection circuit network composed of six diodes and six IGBTs, two fast turn-off switching tubes (T+ and T), an isolated forward DC-DC convertercomposed of two high-frequency transformers and diodes D+ and D-, and finally is connected with an RLC output circuit in series. Generally speaking, in direct current-direct current applications, a full bridge exhibits better performance over a range of applications of several kilowatts, because the full bridge can achieve zero voltage switching, and the voltage stress in a transistor is equal tothe input voltage. On the other hand, the forward converter has a hard switch and higher transistor voltage stress, and the forward converter is only provided with one power transistor, so that the system is not complex and has lower conduction loss.

Description

technical field [0001] The invention relates to the field of power electronics, in particular to a forward type swiss rectifier based on resonant reset isolation. [0002] technical background [0003] With the rapid development of industrial technology, people have higher and higher requirements for the quality of electric energy used. In today's energy crisis, power electronic devices featuring high efficiency, energy saving, high-quality and reasonable use of electric energy have achieved unprecedented development. The use of power electronic equipment has become so extensive that it has become indispensable no matter for a small family or a large country. However, excessive use also brings new problems, namely harmonic problems. With the seriousness of the harmonic problem, its impact on the power grid is also more serious. Therefore, in order to reduce the loss of electric energy, it becomes urgent to reduce the harmonics. [0004] Therefore, it is extremely important...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/219H02M3/335H02M1/12H02M1/42
CPCH02M7/219H02M3/33569H02M3/33523H02M1/12H02M1/4258H02M1/4241Y02B70/10
Inventor 颜景斌李航天刘明亮
Owner HARBIN UNIV OF SCI & TECH
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