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High boost circuit, solar inverter and solar cell system

A technology of high boost and circuit, applied in the direction of adjusting electric variables, control/regulation systems, instruments, etc., can solve the problems of high cost, poor environmental protection, and large extra loss

Inactive Publication Date: 2012-08-15
LEADSOLAR ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that there are at least defects in the prior art such as high cost, large additional loss, low energy conversion efficiency and poor environmental protection.

Method used

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  • High boost circuit, solar inverter and solar cell system
  • High boost circuit, solar inverter and solar cell system
  • High boost circuit, solar inverter and solar cell system

Examples

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Embodiment 1

[0140] According to an embodiment of the present invention, a high boost circuit is provided. This embodiment includes DC input voltage , with the DC input voltage connected and used to output DC or quasi-AC output voltage A converter unit, and a transformer unit that is connected between the primary side and the secondary side of the converter unit; the transformer unit is used to isolate the primary side of the converter unit from the secondary side; and / or, is used based on The input voltage of the primary side of the converter unit is boosted to the output voltage of the secondary side of the converter unit.

[0141] The high boost circuit of the above embodiment, in some occasions where low voltage electricity needs to be converted into high voltage electricity through a high boost ratio, the high boost circuit can not only reduce the cost of the entire energy conversion circuit, but also reduce the loss of the conversion device , improve efficiency, very suitable for...

Embodiment 2

[0163] According to an embodiment of the present invention, a high boost circuit is provided. Such as image 3 As shown, when n=2, the first to nth converters include the first active clamp flyback converter and the second active clamp flyback converter, and the first to nth transformers include the first transformer T1 and the second transformer T2;

[0164] The first active clamp flyback converter includes a first power semiconductor switch , the first clamp switch , the excitation inductance of the primary side of the first transformer or an additional parallel inductance , the leakage inductance of the first transformer or the additional inductance , the first clamp capacitor , the first output diode , the first output capacitor ,as well as and body diode or an additional parallel diode and ;

[0165] The second active clamp flyback converter includes a second power semiconductor switch , the second clamp switch , the excitation inductance of the...

Embodiment 3

[0178] According to an embodiment of the present invention, a high boost circuit is provided. Such as Image 6 As shown, when n=2, the first to nth converters include a first forward converter and a second forward converter, and the first to nth transformers include a first transformer T1 and a second transformer T2;

[0179] The above-mentioned first forward converter includes a first power semiconductor switch , the excitation inductance of the primary side of the first transformer or an additional parallel inductance , the leakage inductance of the first transformer or the additional inductance , the first output diode , the first output filter capacitor , the first output rectifier diode , the first output filter inductor ,as well as body diode or an additional parallel diode ;

[0180] The above-mentioned second forward converter includes a second power semiconductor switch , the excitation inductance of the primary side of the second transformer or an...

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PUM

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Abstract

The invention discloses a high boost circuit, a solar inverter and a solar cell system. The high boost circuit comprises a direct current input voltage Vin, a converter unit and a transformer unit, wherein the converter unit is connected with the direct current input voltage Vin and is used for outputting a direct current output voltage V0; and the transformer unit is connected between the primary side and secondary side of the converter unit in a matched manner and is used for separating the primary side and secondary side of the converter unit and / or is used for performing boosting process on the output voltage of the secondary side of the converter unit on the basis of the input voltage of the primary side of the converter unit. The high boost circuit, the solar inverter and the solar cell system can be used for overcoming the defects in the prior art of high cost, large extra loss, low energy conversion efficiency, poor environment friendliness and the like, and has the advantages of low cost, small extra loss, high energy conversion efficiency, good environmental friendliness and the like.

Description

technical field [0001] The invention relates to electronic devices, in particular to a high boost circuit, a solar inverter and a solar battery system. Background technique [0002] As the world's energy becomes more and more scarce, energy saving and emission reduction, green and high efficiency have become the mainstream development direction of electronic products today; in order to reduce manufacturing costs and production costs, many electronic products require high efficiency, low cost and high reliability in energy conversion sex. How to use new energy more efficiently, such as solar energy, wind energy and biochemical energy, has also attracted more and more attention. [0003] As we all know, power components such as power diodes and power field effect transistors (MOS), etc., the higher the voltage, the more expensive they are; the greater the allowable current, the higher the cost of the devices used. Then, a converter composed of power components will generate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/24H02M3/335H02M1/14H02M5/10
Inventor 郑崇峰邱齐梁志刚
Owner LEADSOLAR ENERGY
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