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Energy optimizing device suitable for solar power generation device

A power generation device and energy optimization technology, applied in the field of solar power generation, can solve the problems of impossibility and loss of conversion efficiency, and achieve the effect of reducing size and energy loss

Inactive Publication Date: 2012-07-04
LEADSOLAR ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] To sum up, in the process of realizing the present invention, the inventor found that at least the defects in the prior art are: because the DC / DC converter converts all the energy output by the solar panel, and the conversion efficiency cannot be 100%. %, so it will inevitably cause a large energy loss

Method used

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  • Energy optimizing device suitable for solar power generation device
  • Energy optimizing device suitable for solar power generation device
  • Energy optimizing device suitable for solar power generation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as image 3 As shown, an energy optimization device suitable for a solar power generation device includes a solar panel and a DC / DC converter. The input terminal of the DC / DC converter is connected to the solar panel, and the anode of the output terminal is output to the load or inverter The cathode of the inverter is connected in series with the anode of the solar panel, and the DC / DC converter and the solar panel form a series circuit to provide power for the load or the inverter. In addition, the device is also provided with a communication monitoring terminal, and the communication monitoring terminal establishes two-way communication with the DC / DC converter. The input of the DC / DC converter is still the solar panel; but its output is not directly connected to the load or the inverter, but is added in series with the output voltage of the solar panel to jointly supply power to the load. Assume the voltage of the solar panel is V PV , the output voltage of th...

Embodiment 2

[0037] Figure 4 based on image 3 An extension of the structure shown. many image 3 The solar panel and DC / DC converter unit shown can be connected in parallel and then feed a load or an inverter.

[0038] An energy optimization device suitable for solar power generation devices, including N solar panels and N DC / DC converters, each solar panel is connected in series with each DC / DC converter; N solar panels The circuits connected in series with the DC / DC converter are connected in parallel to form a power circuit to provide power for the load or the inverter.

[0039] Wherein, the device is also provided with a communication monitoring terminal, and two-way communication is established between the communication monitoring terminal and the N DC / DC converters. The N is greater than or equal to 2.

Embodiment 3

[0041] Such as Figure 5 As shown, an energy optimization device suitable for solar power generation devices includes N solar panels and M DC / DC converters, and a DC / DC converter is connected in series on each N / M solar panels; M consists of The solar panel and the DC / DC converter series circuit are connected in parallel to form a power circuit to provide power for the load or the inverter. Wherein, N is greater than M, and M is greater than or equal to 2. In addition, a communication monitoring terminal is also provided in the device, and two-way communication is established between the communication monitoring terminal and the N DC / DC converters.

[0042] Figure 5 Another structure of the distributed solar power generation system proposed by the present invention is given. and image 3 Compared with the structure, the difference is that in the power generation device, multiple solar panels are connected in series and then connected to the DC / DC converter. Figure 5 The...

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PUM

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Abstract

The invention discloses an energy optimizing device suitable for a solar power generation device, and the energy optimizing device comprises a solar cell panel and a DC (direct current) / DC convertor, wherein the input end of the DC / DC convertor is electrically connected to the solar cell panel, the positive electrode of the output end of the DC / DC convertor is connected with a load or an inverter, the negative electrode of the output end of the DC / DC convertor is serially connected to the positive electrode of the solar cell panel, and the DC / DC convertor and the solar cell panel form a series circuit to provide power supply to the load or the inverter. The energy optimizing devices used in a series connection way or a parallel connection way to form the optimizing devices which are practically applied, the convertor and the solar cell panel are connected in series to provide the power supply to the load or the inverter, the DC / DC convertor only processes a small part of energy which is output by the solar cell panel, most of energy output by the solar cell panel is transferred directly to the load, thus the energy loss is less and the purpose of reducing the energy loss is achieved.

Description

technical field [0001] The invention relates to the field of solar power generation, in particular to an energy optimization device suitable for a solar power generation device. Background technique [0002] In recent years, renewable energy power generation systems based on wind energy and solar energy have been used more and more in the world. For solar grid-connected power generation systems, in addition to the centralized high-power solar power plants that currently dominate the mainstream, distributed solar grid-connected power generation systems can improve the annual power generation of the system in most cases because they can optimize the working status of solar panels. quantity. One of the most important characteristics of distributed generation is that each solar panel or each string of solar panels can work at its respective maximum power point. At present, products represented by solar micro-inverters and solar maximum power optimizers can optimize the output ...

Claims

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Application Information

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IPC IPC(8): H02N6/00
CPCH01L31/02021Y02E10/50
Inventor 梁志刚郑崇峰
Owner LEADSOLAR ENERGY