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Zero export relay

A relay, electric technology, applied in the field of generating renewable energy

Inactive Publication Date: 2016-11-09
GNG ELECTRICAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At such low rates, without affordable storage for solar energy, exporting electricity to the grid is not the most efficient way to use it

Method used

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Embodiment Construction

[0034] The following description is given by way of example only to provide a more precise understanding of the preferred embodiments or the subject matter of the embodiments.

[0035] The described embodiments relate generally to devices for isolating and monitoring power output from renewable energy sources or systems to a mains supply and systems for renewable energy generating load compensation incorporating such devices. Devices according to the invention are typically used in solar photovoltaic feeder grid installations for the purpose of isolating mains power from renewable energy sources, and the embodiments described are particularly suitable for such purposes. Embodiments, however, are not limited to such uses.

[0036] Photogeneration (PV) is a method of generating electricity by converting solar radiation into direct current electrical energy using semiconductors exhibiting the photovoltaic effect. Photovoltaic power generation employs solar panels consisting of m...

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Abstract

This invention relates in general to a device for isolating, controlling, limiting and supporting the power exported from the renewable energy source to the utility grid. The device comprising: a means for monitoring the direction of flow of power within the renewable energy source; a means for isolating the flow of power from the renewable energy source to the mains power supply; and wherein when a reverse power flow above agreed feed in or at least zero feed in or limited feed in is sensed by the means for monitoring between the renewable energy source to the mains power supply, the monitoring means signals the isolating means to open circuit the system and / or control / limit output of the system.

Description

technical field [0001] The present invention generally relates to generating renewable energy within a utility grid. More specifically, the invention relates to devices for isolating, controlling and limiting the export of electricity from renewable energy sources to a utility grid. In the present invention, the device has the ability to limit or have zero reverse power flow or to feed power from a renewable energy system into the utility grid. Background technique [0002] It should be noted that citing prior art herein should not be construed as an acknowledgment that such prior art constitutes common general knowledge in the field. [0003] Electrical energy or electricity is a necessary part of modern life. At home, at business, at an institution, or elsewhere, consumers use electrical energy in a variety of ways. The utility grid transports electricity generated by power plants through a network of transmission and distribution lines. This network is hereinafter ref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J11/00H02S10/00
CPCH02J11/00H02J13/00Y04S10/123H02S50/00H02J2300/10H02J2300/20H02J3/381Y02E10/50Y02E40/70Y04S20/222Y02B70/3225H02J3/46H02J3/388H02J2300/22H02J2300/28H02S40/32H02J3/16
Inventor G·N·罗赫尔斯
Owner GNG ELECTRICAL
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