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Photovoltaic device for connection to a high-voltage DC transmission path

A photovoltaic device and high-voltage direct current technology, applied in the direction of direct current network circuit devices, circuit devices, circuits, etc., can solve problems such as high investment costs and power loss

Inactive Publication Date: 2014-08-20
SCHOTT SOLAR AG (DE)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This means high investment costs
In addition, each voltage conversion is also accompanied by a certain power loss

Method used

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  • Photovoltaic device for connection to a high-voltage DC transmission path
  • Photovoltaic device for connection to a high-voltage DC transmission path
  • Photovoltaic device for connection to a high-voltage DC transmission path

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Embodiment Construction

[0020] figure 1 It is a structural diagram of the photovoltaic device PVE of the present invention. The photovoltaic device generates a DC voltage Udc* in the high-voltage range and sends it to the high-voltage transmission line HGUE. It can also be a short-distance power transmission, in which case the HGü line is implemented as a cable. To this end, the photovoltaic device PVE includes two component fields MF+ and MF-, each of which has a busbar S+ and S- arranged in the center to form a positive electrode and a negative electrode electrical connection respectively. Each of the component fields (here MF+ is taken as an example) is symmetrical with respect to the busbar S+ structure arranged in the center. The module field MF+ contains multiple photovoltaic modules (see also image 3 a) These photovoltaic modules are connected one by one to form multiple photovoltaic modules or module modules, and these photovoltaic modules or module modules are connected to form multiple basi...

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PUM

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Abstract

The present invention proposes a photovoltaic device (PVE) comprising a plurality of photovoltaic modules for generating a direct current voltage, said photovoltaic modules being connected to each other in parallel and / or in series to generate a direct current voltage (Udc*), said direct current The voltage exceeds the withstand voltage of the photovoltaic module and is suitable for high-voltage direct current transmission, wherein each pole of the direct current voltage (Udc*) is provided with a module field (MF+, MF-), and the module field includes a certain number (K ) of photovoltaic modules, preferably in the form of modules and basic structures (BS), which are potential-symmetrically distributed with respect to a central busbar (S+, S-), wherein each of said module fields (MF+, MF-) Both are surrounded by a surrounding collector ring (SR) at ground potential (EP). Each of said component fields (MF+, MF-) is preferably isolated from earth potential (EP), in particular by an insulating film (IF) laid underneath said component fields (MF+, MF-) Ground potential (EP) isolation.

Description

Technical field [0001] The invention relates to a photovoltaic device as claimed in the preamble of claim 1. In particular, the present invention relates to a photovoltaic device connectable to a high-voltage direct current transmission line, which is suitable for supplying power to electrical equipment arranged far from or close to the photovoltaic device. Background technique [0002] Photovoltaic installations or photovoltaic units are increasingly used in so-called photovoltaic power plants. Most of them are installed in areas with ample sunlight to centralize the power supply network for existing electrical equipment that is usually far away from photovoltaic installations or photovoltaic units. Power generation. This type of photovoltaic device preferably adopts a large-area design, such as being installed in a desert area, so as to be able to reliably use solar energy to generate electricity. This type of unit is also called "Very Large-scale Photovoltaic System", or "VL...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/042H02S30/10H02S20/10H02J1/00H02J5/00
CPCY02E60/60H02J3/36H01L31/042H02S20/00H02J1/00H02J5/00Y02E10/50H01L31/0422H01L31/02021H02S10/00H02S40/34H02S20/10H02S40/32
Inventor 托马斯·劳因格
Owner SCHOTT SOLAR AG (DE)