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Photovoltaic inverter

A photovoltaic inverter and photovoltaic panel technology, which is applied in the directions of photovoltaic power generation, conversion of equipment structural parts, conversion of AC power input into DC power output, etc., can solve the problem of high air duct design requirements, increased economic costs, and inverter volume. Increase and other problems, to achieve the effect of reducing installation cost and maintenance cost, high efficiency and miniaturization, and high heat dissipation efficiency

Pending Publication Date: 2017-08-11
北京群菱能源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the current heat dissipation solution of photovoltaic grid-connected inverters, the problem is that the overall volume of the inverter increases due to the addition of fans, which increases the weight of the inverter and is not easy to install ; The long-term continuous operation of the fan will inevitably cause various problems, so the maintenance and replacement of the fan will also increase economic costs; lead to greater waste

Method used

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  • Photovoltaic inverter
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Embodiment Construction

[0017] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0018] In one embodiment according to the present application, figure 1 The schematic diagram of the photovoltaic inverter of the present application. The DC output from the photovoltaic panel is integrated into two channels and input into the system. After the booster circuit, it is input into the inverter circuit to output three-phase AC. It also contains some additional equipment, such as lightning arresters, circuit breakers, common mode inductors, Y capacitors, contactors, etc.

[0019] The present invention provides a photovoltaic inverter, refer to figure 2 , including DC interface parts, power modules, capacitor modules, IGBT modules, power boards and sampling boards arranged in seq...

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Abstract

The present invention provides a photovoltaic inverter. The photovoltaic inverter comprises a direct current interface piece, a power module, a capacitor module, an IGBT module, a power panel and a sampling plate. According to the internal structure arrangement of the photovoltaic inverter, the sizes of required elements are reasonably selected on the premise of satisfying the functions of the photovoltaic inverter, optimization arrangement of each part is performed in the inverter according to the size of each element, the internal devices are reasonably arranged, the heat radiation efficiency is high, and a fan is not needed, so that the installation cost and the maintenance cost are reduced, and the high efficiency and the miniaturization of the photovoltaic inverter are realized.

Description

technical field [0001] The present invention relates to the technical field of inverters, and more particularly, to a photovoltaic inverter. Background technique [0002] At present, with the continuous development of new energy technology, photovoltaic power generation has received more and more attention. High efficiency and miniaturization are the current problems of photovoltaic inverters and the future development direction. The heat generation of an insulated gate bipolar transistor (IGBT) in a photovoltaic inverter is unavoidable and has to be considered. [0003] Inverter, also known as power regulator, can be divided into independent power supply and grid-connected use according to the use of inverter in photovoltaic power generation system. For inverters used in grid-connected systems, they can be divided into transformer-type inverters and transformer-less inverters according to whether there is a transformer. In the solar power generation system, the efficiency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/00H02M7/537
CPCH02M7/003H02M7/537Y02E10/56
Inventor 姚海强姚承勇张进滨张进郭
Owner 北京群菱能源科技有限公司
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