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Efficient energy conversion device for solar cell panel, array and application method

A technology of a solar panel and an energy conversion device, which is applied in the field of solar cells and can solve problems such as the decrease of the total output energy of the battery array, the failure of the solar cell and the like

Active Publication Date: 2010-12-01
深圳市美莱创新股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The first object of the present invention is to provide a high-efficiency energy conversion device for solar panels to solve the technical problem in the prior art that the failure of individual solar cells leads to a decrease in the total output energy of the entire battery array

Method used

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  • Efficient energy conversion device for solar cell panel, array and application method
  • Efficient energy conversion device for solar cell panel, array and application method
  • Efficient energy conversion device for solar cell panel, array and application method

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Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] Such as figure 1 As shown, the present embodiment is a high-efficiency energy conversion device for a solar cell array, and the device includes:

[0040] Input voltage and current sampling circuit, DC-DC conversion circuit, output voltage and current sampling circuit, soft switching PWM control circuit, bypass drive circuit, D / A conversion circuit and central processing circuit;

[0041] The output terminal of the solar panel is connected with the input terminal of the DC-DC conversion circuit, the output terminal of the DC-DC conversion circuit is used as the output terminal output current of the device, the input voltage and current sampling circuit is connected with the output terminal of the solar panel, and the input voltage The current is sampled, and the output voltage and current sampling circuit is connected to the ou...

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Abstract

The invention relates to the field of solar cells, in particular to an efficient energy conversion device for a solar cell panel, an array and an application method thereof. The device comprises an input voltage and current sampling circuit, a DC-DC conversion circuit, an output voltage and current sampling circuit, a switching control circuit and a central processing circuit, wherein the centralprocessing circuit controls the input voltage of the DC-DC conversion circuit through the switching control circuit by taking the input voltage and current sampling circuit and the output voltage andcurrent sampling circuit as feedback. The device is an energy balance device which can solve the problem that the power generation quantity of the whole system is greatly reduced and the system cannot work normally due to mismatch of individual photovoltaic units in a solar photovoltaic array, save at most 50 percent of energy lost due to the mismatch under the actual installation condition and promote the power generation quantity of the solar power generation system to the highest level.

Description

technical field [0001] The invention relates to the field of solar cells, in particular to a high-efficiency energy conversion device for a solar cell panel, an array and an application method thereof. Background technique [0002] Currently, solar panel arrays are composed of multiple solar panels directly connected in series and in parallel. The direct combination of solar panels will lose a lot of energy due to slight shading. In addition, this direct combination method also requires that when installing solar panels, the direction and slope angle must be consistent, so as to avoid energy loss due to unbalanced power transmission. [0003] We clearly know that in the real environment, shadows such as tree shade, buildings, leaves, snow, power supply cables, and even bird excrement will often cause the overall mismatch of the photovoltaic array, resulting in a decrease in the overall power generation efficiency of the photovoltaic array. In fact, as little as 10% of a so...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02M3/158H01L31/052H01L31/042H02S40/42
CPCY02E10/563Y02E10/56
Inventor 谢永亮
Owner 深圳市美莱创新股份有限公司
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