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System and method for array and string level monitoring of a grid-connected photovoltaic power system

A photovoltaic system and array technology, applied in the monitoring of photovoltaic systems, photovoltaic power generation, electrical signal transmission systems, etc., to achieve the effect of increasing the information layer and measurability

Inactive Publication Date: 2009-10-07
THOMPSON TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A possible disadvantage of GCPV is that it can only be installed where it can receive power from the utility grid

Method used

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  • System and method for array and string level monitoring of a grid-connected photovoltaic power system
  • System and method for array and string level monitoring of a grid-connected photovoltaic power system
  • System and method for array and string level monitoring of a grid-connected photovoltaic power system

Examples

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Embodiment Construction

[0028] see Figure 1 to Figure 6 , wherein like reference numerals refer to like parts in the various figures, shows a new and improved apparatus and method for array level and row level of a grid-tied PV system. figure 1 A GCPV system 10 of conventional construction is shown schematically, comprising a utility power supplier or grid 12, power transmission lines 14 connecting the grid to a customer building power supply 16, and a current transformer 18 disposed therebetween. The system further includes a PV power system or array 20, a power transmission line 22 extending from the PV system to a junction or meter 24 where it meets the power transmission line 14 from the grid, and a converter 26 of the PV system.

[0029] On the basis of the aforementioned GCPV system structure, the monitoring system of the present invention includes three main components, including: an array monitoring component; programming computers; and row-level monitoring components.

[0030] see figur...

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Abstract

A grid-connected photovoltaic electrical power system with both array level and string level remote monitoring and production and efficiency analysis capabilities. The inventive system includes an array level monitoring component, software for recording and analyzing data obtained through the array level monitoring component, and a string level monitoring component.

Description

technical field [0001] The invention relates to a grid-connected photovoltaic energy system. In particular, the present invention relates to a grid-connected photovoltaic power system with array-level and string-level remote monitoring and production and efficiency analysis capabilities. Background technique [0002] As remaining reserves of oil rapidly approach depletion, CO 2 Global warming caused by high emissions, people's demand for clean energy and the increase in awareness of the effective protection of natural resources, people are gradually turning to renewable and reliable power resources. It is outdated to talk about the sun as the ultimate source of all energy on earth, and to some extent direct use of solar energy is the most promising solution to future electricity supply problems because it is a safe and completely reliable way of generating energy. However, there is considerable debate about the economic viability of solar energy systems, which is essential...

Claims

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Application Information

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IPC IPC(8): G01R21/00H02S50/00
CPCY04S50/12Y02E40/72Y04S10/123Y02E10/563Y02E10/566Y02E10/56G01R22/06G08C19/02G16Z99/00H01L31/042H02J7/35H02S40/32H02S50/00Y02E10/50
Inventor 丹尼尔·S·汤普森拉克斯·萨姆帕斯大卫·舍维克
Owner THOMPSON TECH IND