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A bidirectional high gain cuk circuit with tapped inductor

A tapped inductor and high-gain technology, which is applied in the direction of electrical components, adjustment of electrical variables, and output power conversion devices, to achieve the effects of being beneficial to EMI, increasing voltage gain, and improving conversion efficiency

Inactive Publication Date: 2021-01-29
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, bidirectional DC-DC circuits applied to new energy power generation need to have high voltage gain characteristics, which cannot be achieved by traditional Buck / Boost bidirectional DC-DC circuits

Method used

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  • A bidirectional high gain cuk circuit with tapped inductor
  • A bidirectional high gain cuk circuit with tapped inductor
  • A bidirectional high gain cuk circuit with tapped inductor

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Embodiment Construction

[0023] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0024] A bidirectional high-gain converter of the present invention is specifically a bidirectional high-gain Cuk circuit with a tapped inductor, including an input DC voltage source V 1 , the input DC voltage source V 1 The positive terminal is connected to a tapped inductor L t terminal a; the tapped inductance L t The b terminal is connected to a power diode D 1 The cathode and a power MOS switch S 1 the drain (or IGBT collector); the tapped inductance L t The c terminal is connected to an intermediate capacitor C B one end; the intermediate capacitor C B The other end is connected to a power diode D 2 The anode of a power MOS switch tube S 2 source (or IGBT emitter) and an inductor L 3 one end; the inductance L 3 Connect the other end of the input DC voltage source V 1 The negative terminal and an energy storage o...

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PUM

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Abstract

The invention relates to a bidirectional high-gain Cuk circuit with tapped inductance. The circuit consists of an input DC voltage source V 1 , a power MOS switch tube (or IGBT switch tube) S 1 , a power MOS switch tube (or IGBT switch tube) S 2 , a power diode D 1 , a power diode D 2 , an intermediate capacitor C B , a tapped inductance L t , an inductance L 3 , an energy storage or load with counter electromotive force V 2 ; Among them, the tapped inductance L t coupled in the opposite direction L 1 and L 2 It consists of two parts. The invention improves the voltage gain of the bidirectional Cuk converter by introducing tapped inductance, realizes high efficiency, low ripple, large input-output voltage ratio, and bidirectional conversion and processing of electric energy.

Description

technical field [0001] The invention relates to a bidirectional high-gain Cuk circuit with a tapped inductance, more specifically a bidirectional Cuk converter voltage gain achieved by introducing a tapped inductance to achieve high efficiency, low ripple, large input-output voltage ratio, and bidirectional electric energy Transformation and processing. Background technique [0002] With the rapid development of society and economy and the continuous growth of population, the world's overall demand for energy continues unabated, and the world is facing serious energy crisis and environmental crisis. Photovoltaics and fuel cells are considered to be the main foundation of the future world energy structure and an inevitable trend to solve the energy crisis. The development of clean, efficient and renewable energy has become an important topic worldwide. For this type of new energy power generation system, energy storage devices such as supercapacitors and batteries are an ind...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158H02M1/14
Inventor 林维明陈红星
Owner FUZHOU UNIV