Utility interactive inverter with var dispatch capabilities

a technology of inverter and dispatch capability, applied in the direction of electric programme control, instrumentation, program control, etc., can solve the problems of increasing the cost and time consumption of power generation on line, bringing resources online to supply additional power, and purchasing power from another sour

Inactive Publication Date: 2016-01-21
GRIDPOINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables efficient and automated management of power grids during high demand periods, stabilizes voltage, and provides backup power, reducing costs and improving response times to grid conditions.

Problems solved by technology

When demand exceeds the available supply, the utility must either purchase power from neighboring interconnects or bring additional (possibly less efficient) generation on line.
Bringing resources online to regulate voltage, for example, switching on capacitor banks, and bringing resources online to supply additional power, for example, purchasing power from another source, can be costly and time consuming.
Furthermore, in many cases, monitoring and reacting to voltage instability or generation shortfall must be performed manually, often at or near the source of the problem, and thus grid management is neither centrally controlled or automated.

Method used

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  • Utility interactive inverter with var dispatch capabilities
  • Utility interactive inverter with var dispatch capabilities
  • Utility interactive inverter with var dispatch capabilities

Examples

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Embodiment Construction

[0020]Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

[0021]The present invention is described below with operational illustrations of devices and systems for dispatching reactive power to a power grid. It is understood that illustrations may be implemented by means of analog or digital hardware and computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, ASIC, or other programmable data processing apparatus, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, implements the functions or acts specified in the illustrations.

[0022]FIG. 1 illustrates an embodiment of a VAR dispatch device, 100. The device is connected to a power grid, 200, which may be, for example, the power grid of a local utility. The VAR disp...

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Abstract

A VAR dispatch system. A central control system connected to a network is configured to receive data reflecting local variations in conditions on a power grid and to transmit system control commands over the network. A plurality of VAR dispatch devices are connected to the network and to the power grid. Each VAR dispatch device is configured to detect local variations in conditions on the power grid and to transmit the data reflecting such local variations to the central control system and to receive control commands from the central control system. Each VAR dispatch device is configured to store power and to output stored power to the power grid based on local variations in conditions on the power grid. Each VAR dispatch device is further configured to output stored power to the power grid when the VAR dispatch device receives system control commands from the central control system.

Description

[0001]This application is a continuation of U.S. patent application Ser. No. 12 / 175,314 filed Jul. 17, 2008, now U.S. Pat. No. 9,031,708, which claims priority to U.S. Provisional Application Ser. No. 60 / 950,167 entitled “Utility Interactive Inverter with VAR Dispatch Capabilities” filed Jul. 17, 2007, and relates to the subject matter of U.S. Provisional Patent Application Ser. No. 60 / 878,072 entitled “Utility Console for Controlling Aggregated Energy Resources” filed Jan. 3, 2007, which are incorporated herein by reference in their entirety.[0002]This application includes material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent disclosure, as it appears in the Patent and Trademark Office files or records, but otherwise reserves all copyright rights whatsoever.FIELD OF THE INVENTION[0003]The present invention relates in general to the field of electric power distribution systems, and in particular ...

Claims

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Application Information

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Patent Type & AuthorityApplications(United States)
IPC IPC(8): G05B19/042H02J3/18H02M7/539
CPCH02J3/18G05B2219/25318G05B19/042H02M7/539H02J3/1842Y02E40/20
InventorPENZENSTADLER, ERNESTSAUVE, JOHNYAN, GUOHUIGOLDEN, BRIAN
OwnerGRIDPOINT