CN102969661A - Air cooling heat-removal system of photovoltaic inverter cabinet - Google Patents
Air cooling heat-removal system of photovoltaic inverter cabinet Download PDFInfo
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- CN102969661A CN102969661A CN2012105069894A CN201210506989A CN102969661A CN 102969661 A CN102969661 A CN 102969661A CN 2012105069894 A CN2012105069894 A CN 2012105069894A CN 201210506989 A CN201210506989 A CN 201210506989A CN 102969661 A CN102969661 A CN 102969661A
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- 238000001816 cooling Methods 0.000 title claims abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000010248 power generation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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Abstract
本发明涉及光伏发电系统中的变流设备，具体是一种用于光伏逆变器柜中的光伏逆变器柜风冷散热系统。包括有并排连接的功率单元柜体和电抗器柜体，功率单元柜体和电抗器柜体内分别安装功率单元和电抗器；电抗器体安装于电抗器柜的下部，电抗器柜体前面板下部开有总进风口，电抗器柜体与功率单元柜体之间的隔板中部开有侧通风口，侧通风口通过位于功率单元柜体内的冷却风道与功率单元柜体顶部的出风口连接，所述出风口处安装有主排风风机；所述总进风口内侧安装有向内送风的进风风机。本发明无需增加设备元件的容量即可适用于高海拔地区，使高、低海拔地区的逆变器柜的主要元件能够实现互换，降低了制造和维护成本。
The invention relates to a converter device in a photovoltaic power generation system, in particular to an air-cooled heat dissipation system for a photovoltaic inverter cabinet used in a photovoltaic inverter cabinet. It includes power unit cabinets and reactor cabinets connected side by side. Power units and reactors are installed in the power unit cabinets and reactor cabinets respectively; the reactor body is installed in the lower part of the reactor cabinet, and the lower part of the front panel of the reactor cabinet There is a general air inlet, and there is a side vent in the middle of the partition between the reactor cabinet and the power unit cabinet, and the side vent is connected to the air outlet on the top of the power unit cabinet through the cooling air duct located in the power unit cabinet , the main exhaust fan is installed at the air outlet; the air inlet fan for inward air supply is installed inside the general air inlet. The invention can be applied to high-altitude areas without increasing the capacity of equipment components, enabling the exchange of main components of inverter cabinets in high-altitude and low-altitude areas, and reducing manufacturing and maintenance costs.
Description
技术领域 technical field
本发明涉及光伏发电系统中的变流设备，具体是一种用于光伏逆变器柜中的光伏逆变器柜风冷散热系统。 The invention relates to a converter device in a photovoltaic power generation system, in particular to an air-cooled heat dissipation system for a photovoltaic inverter cabinet used in a photovoltaic inverter cabinet.
背景技术 Background technique
光伏发电系统中的光伏逆变器柜通常包括有并排连接的功率单元柜体和电抗器柜体，分别用来安装功率单元和电抗器。在大功率光伏逆变器中，LCL回路是光伏逆变器中主要的滤波回路，电抗器的发热量与通过电抗器的电流大小以及电流中谐波含量多少有直接的关系，在逆变器工作时，通过的电流越大，电抗的发热量越大，谐波含量越多，电抗的发热量越大。特别是在高海拔条件下，光伏逆变器需要降容使用，电抗器也需要降额使用，如果需要光伏逆变器满载发电，通过电抗器的电流实际上会比非高海条件下通过的电流更大，加上高海拔地区空气稀薄，降低了空气冷却的散热效果。 A photovoltaic inverter cabinet in a photovoltaic power generation system usually includes a power unit cabinet and a reactor cabinet connected side by side, which are used to install the power unit and the reactor respectively. In high-power photovoltaic inverters, the LCL circuit is the main filter circuit in the photovoltaic inverter. The heating value of the reactor is directly related to the current passing through the reactor and the harmonic content in the current. In the inverter When working, the greater the passing current, the greater the heat generation of the reactance, the more harmonic content, the greater the heat generation of the reactance. Especially in high-altitude conditions, the photovoltaic inverter needs to be derated, and the reactor also needs to be derated. If the photovoltaic inverter is required to generate electricity at full load, the current passing through the reactor will actually be higher than that passed under non-high sea conditions. Higher currents, combined with thinner air at high altitudes, reduce the effectiveness of air cooling.
在高海拔地区使用大功率光伏并网逆变器，很多厂家都是使用更高功率光伏逆变器进行降容使用，例如使用630kw的光伏逆变器代替高原型500kw光伏逆变器使用，而630kw逆变器使用电抗器的体积和允许通过的电流都比500kw的大。这样在元器件及柜体设计上存在着很大的差异和成本浪费，给逆变器设计特别是电抗器散热设计带来更高难度。 When using high-power photovoltaic grid-connected inverters in high-altitude areas, many manufacturers use higher-power photovoltaic inverters for capacity reduction. For example, 630kw photovoltaic inverters are used instead of plateau-type 500kw photovoltaic inverters. The volume of the reactor used by the 630kw inverter and the allowable current are larger than those of the 500kw inverter. In this way, there are great differences and cost waste in the design of components and cabinets, which brings more difficulty to the design of the inverter, especially the heat dissipation design of the reactor.
发明内容 Contents of the invention
本发明所要解决的技术问题是，提供使光伏逆变器柜的主体部件能够通用于高海拔和低海拔地区、减少设备运行环节的容量和元件成本的浪费、提高设备元件互换性、降低生产成本的光伏逆变器柜风冷散热系统。 The technical problem to be solved by the present invention is to provide the main components of the photovoltaic inverter cabinet that can be commonly used in high-altitude and low-altitude areas, reduce the capacity of equipment operation and waste of component costs, improve the interchangeability of equipment components, and reduce production. Cost-effective photovoltaic inverter cabinet air-cooled heat dissipation system.
本发明的光伏逆变器柜风冷散热系统包括有并排连接的功率单元柜体和电抗器柜体，功率单元柜体和电抗器柜体内分别安装功率单元和电抗器；电抗器体安装于电抗器柜的下部，电抗器柜体前面板下部开有总进风口，电抗器柜体与功率单元柜体之间的隔板中部开有侧通风口，侧通风口通过位于功率单元柜体内的冷却风道与功率单元柜体顶部的出风口连接，所述出风口处安装有主排风风机；所述总进风口内侧安装有向内送风的进风风机。 The air-cooled heat dissipation system for photovoltaic inverter cabinets of the present invention includes power unit cabinets and reactor cabinets connected side by side, and power units and reactors are respectively installed in the power unit cabinets and reactor cabinets; The lower part of the reactor cabinet, the lower part of the front panel of the reactor cabinet is provided with a general air inlet, and the middle part of the partition between the reactor cabinet and the power unit cabinet is provided with a side vent, and the side vent passes through the cooling system located in the power unit cabinet. The air duct is connected to the air outlet on the top of the power unit cabinet, and the main air exhaust fan is installed at the air outlet; the air inlet fan that supplies air inward is installed inside the general air inlet.
所述电抗器柜体中部安装有一个进风口正对下方电抗器的辅助排风风机，辅助排风风机的出口与位于电抗器柜体后面板中部的辅助出风口连接。 An auxiliary exhaust fan with an air inlet facing the reactor below is installed in the middle of the reactor cabinet, and the outlet of the auxiliary exhaust fan is connected to the auxiliary air outlet located in the middle of the rear panel of the reactor cabinet.
本发明保留了用于低海拔地区的普通逆变器柜的主体结构和主要散热系统结构，在此基础上可以通过选择性地安装进风风机和辅助排风风机，使柜内元件的散热效果得到大副提高，从而无需增加设备元件的容量即可适用于高海拔地区，使高、低海拔地区的逆变器柜的主要元件能够实现互换，降低了制造和维护成本。 The present invention retains the main body structure and the main heat dissipation system structure of the common inverter cabinet used in low-altitude areas. On this basis, the heat dissipation effect of the components in the cabinet can be improved by selectively installing the air inlet fan and the auxiliary exhaust fan. It is greatly improved, so that it can be applied to high-altitude areas without increasing the capacity of equipment components, so that the main components of inverter cabinets in high- and low-altitude areas can be interchanged, reducing manufacturing and maintenance costs.
附图说明 Description of drawings
图1是本发明实施例的功率单元柜体和电抗器柜体去除面板和壁板后的立体结构示意图。 Fig. 1 is a three-dimensional structural diagram of a power unit cabinet and a reactor cabinet in an embodiment of the present invention after panels and wall panels are removed.
图2是本发明实施例电抗器柜体的侧面剖视结构示意图。 Fig. 2 is a side sectional structural schematic diagram of a reactor cabinet according to an embodiment of the present invention.
具体实施方式 Detailed ways
如图所示，该光伏逆变器柜风冷散热系统包括有并排连接的功率单元柜体1和电抗器柜体2，功率单元柜体1和电抗器柜体2内分别安装功率单元和电抗器3；电抗器3安装于电抗器柜体2的下部，电抗器柜体2前面板下部开有总进风口4，电抗器柜体2与功率单元柜体1之间的隔板中部开有侧通风口5，侧通风口5通过位于功率单元柜体1内的冷却风道与功率单元柜体顶部的出风口6连接，出风口处安装有主排风风机7；总进风口4内侧安装有向内送风的进风风机8。电抗器柜体2中部安装有一个进风口正对下方电抗器的辅助排风风机9，辅助排风风机9的出口与位于电抗器柜体2后面板中部的辅助出风口10连接。
As shown in the figure, the air-cooled heat dissipation system of the photovoltaic inverter cabinet includes a power unit cabinet 1 and a reactor cabinet 2 connected side by side. The power unit cabinet 1 and the reactor cabinet 2 are respectively installed with power units and reactors. reactor 3; the reactor 3 is installed in the lower part of the reactor cabinet 2, the lower part of the front panel of the reactor cabinet 2 has a general air inlet 4, and the middle part of the partition between the reactor cabinet 2 and the power unit cabinet 1 has a The side vent 5 is connected to the air outlet 6 on the top of the power unit cabinet through the cooling air duct located in the power unit cabinet 1, and the main exhaust fan 7 is installed at the air outlet; the main air inlet 4 is installed inside There is an air intake blower fan 8 for inward air supply. An auxiliary exhaust fan 9 with an air inlet facing the reactor below is installed in the middle of the reactor cabinet 2 , and the outlet of the auxiliary exhaust fan 9 is connected to the
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105069894A CN102969661A (en) | 2012-12-03 | 2012-12-03 | Air cooling heat-removal system of photovoltaic inverter cabinet |
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| CN2012105069894A CN102969661A (en) | 2012-12-03 | 2012-12-03 | Air cooling heat-removal system of photovoltaic inverter cabinet |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600960A (en) * | 2014-04-17 | 2015-05-06 | 南车株洲电力机车研究所有限公司 | Compact main unit cabinet of power cabinet, assembly method thereof and arrangement method for components therein |
| CN112908626A (en) * | 2021-01-25 | 2021-06-04 | 合肥博微田村电气有限公司 | Air-cooled reactor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5132872A (en) * | 1990-10-22 | 1992-07-21 | Hase A M | Low profile mounting assembly and cabinet enclosures for rack relay mounted rectifiers |
| CN201048246Y (en) * | 2007-04-30 | 2008-04-16 | 潍坊乐航电子科技有限公司 | Waterproof electric cabinet |
| CN201509010U (en) * | 2009-09-28 | 2010-06-16 | 合肥阳光电源有限公司 | Radiating air duct of high-power converter main circuit cabinet |
| CN102111081A (en) * | 2011-03-28 | 2011-06-29 | 安徽金峰新能源股份有限公司 | Case for mounting photovoltaic inverter |
| CN202405648U (en) * | 2011-11-30 | 2012-08-29 | 江苏大全凯帆电器股份有限公司 | Air-cooled radiating system of photovoltaic power generation inverter cabinet |
| CN203056415U (en) * | 2012-12-03 | 2013-07-10 | 江苏大全凯帆电器股份有限公司 | Photovoltaic inverter cabinet air cooling system |
-
2012
- 2012-12-03 CN CN2012105069894A patent/CN102969661A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5132872A (en) * | 1990-10-22 | 1992-07-21 | Hase A M | Low profile mounting assembly and cabinet enclosures for rack relay mounted rectifiers |
| CN201048246Y (en) * | 2007-04-30 | 2008-04-16 | 潍坊乐航电子科技有限公司 | Waterproof electric cabinet |
| CN201509010U (en) * | 2009-09-28 | 2010-06-16 | 合肥阳光电源有限公司 | Radiating air duct of high-power converter main circuit cabinet |
| CN102111081A (en) * | 2011-03-28 | 2011-06-29 | 安徽金峰新能源股份有限公司 | Case for mounting photovoltaic inverter |
| CN202405648U (en) * | 2011-11-30 | 2012-08-29 | 江苏大全凯帆电器股份有限公司 | Air-cooled radiating system of photovoltaic power generation inverter cabinet |
| CN203056415U (en) * | 2012-12-03 | 2013-07-10 | 江苏大全凯帆电器股份有限公司 | Photovoltaic inverter cabinet air cooling system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600960A (en) * | 2014-04-17 | 2015-05-06 | 南车株洲电力机车研究所有限公司 | Compact main unit cabinet of power cabinet, assembly method thereof and arrangement method for components therein |
| CN104600960B (en) * | 2014-04-17 | 2017-02-15 | 南车株洲电力机车研究所有限公司 | Compact main unit cabinet of power cabinet, assembly method thereof and arrangement method for components therein |
| CN112908626A (en) * | 2021-01-25 | 2021-06-04 | 合肥博微田村电气有限公司 | Air-cooled reactor |
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Application publication date: 20130313 |