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power converter

A technology of power converter and boost converter, which is applied in the direction of output power conversion device, high-efficiency power electronic conversion, DC power input conversion to DC power output, etc., and can solve the problems affecting power converter efficiency and collection, input boost Problems with high converter losses

Active Publication Date: 2021-12-24
HUAWEI DIGITAL POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But requires a large input boost inductor, which leads to higher losses in the input boost converter
[0022] All of these methods have disadvantages that affect the efficiency of the power converter and the collection of

Method used

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Examples

Experimental program
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Embodiment Construction

[0098] Embodiments are described below with reference to the accompanying drawings.

[0099] figure 1 It is a schematic circuit diagram of a DC / AC power converter provided by an embodiment.

[0100] A DC voltage source 101 with a variable output voltage is connected to the input of the DC / DC power converter 100 , ie between the input 111 and the ground 113 of the DC / DC power converter 100 . For example, the DC voltage source 101 with variable output voltage may be, but is not limited to, a device for generating electricity from renewable resources such as a photovoltaic device or a wind energy device.

[0101] The output of the DC / DC power converter 100 , that is, the output terminal 112 and the ground terminal 113 of the DC / DC power converter 100 are connected to the input of the DC / AC power converter 102 . For example, a single-phase or multi-phase PWM inverter can be used as the DC / AC power converter 102 . Not shown, the output of the DC / AC power converter 102 may be co...

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PUM

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Abstract

A DC / DC power converter 100 has an input terminal 111 , an output terminal 112 and a ground terminal 113 . The DC / DC power converter 100 comprises: two capacitors 121 and 122 connected in series between the output terminal 112 and the ground terminal 113; a boost converter 130 having a first boost converter terminal connected to the input terminal 111 131. A second boost converter terminal 132 connected to the output terminal 112 and a third boost converter terminal 133 connected to the connection point 123 between the capacitors 121 and 122; a boost module 140 having a terminal 113 connected to the ground A first boost module terminal 141 , a second boost module terminal 142 connected to the output terminal 112 and a third boost module terminal 143 connected to the connection point 123 .

Description

technical field [0001] The present invention relates to a power converter, in particular to a power converter for renewable energy equipment such as photovoltaic equipment or wind energy equipment. Background technique [0002] A solar system is a system used to convert the sun's radiant energy into electrical energy. In some applications, the electrical energy is used directly by the local load, while in others, the generated electrical energy is pumped back into the grid. Solar energy conversion systems include photovoltaic panels that generate DC voltage / current from solar energy and power converters that convert the generated DC voltage / current into AC voltage / current suitable for driving local loads or pumping back to the grid. [0003] One of the most important requirements of a solar energy conversion system is collection and efficiency. Harvesting in this context refers to extracting as much energy as possible from photovoltaic panels in a given situation. Efficie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158H02M1/00H02J3/38
CPCH02M3/158H02J2300/24H02J3/381Y02B70/10Y02E10/56H02M1/0067H02M1/0058H02M3/1586H02M1/0043H02M7/4833H02J2300/28H02M7/483H02M3/1584
Inventor 佩塔尔·格尔博维奇罗兰·欣普夫纳何塞·安东尼奥·科博斯佩德罗·阿劳耶稣·安琪儿·奥立佛米罗斯拉夫·瓦西奇
Owner HUAWEI DIGITAL POWER TECH CO LTD
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