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Method and system for stabilizing power grid

A grid and stabilization technology, applied in the field of electric power, can solve the problem that the low-voltage side power distribution room cannot be accurately cut off, and achieve the effect of stabilizing the grid.

Active Publication Date: 2018-12-07
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides a method and system for stabilizing the power grid, so as to at least solve the technical problem in the related art that the power distribution room on the low-voltage side cannot be accurately removed when the cycle of the power grid fault system collapses

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  • Method and system for stabilizing power grid
  • Method and system for stabilizing power grid

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Embodiment Construction

[0024] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses a method and a system for stabilizing a power grid. The method includes the following steps: when a power failure occurs in a substation on the high-voltage side, a low-cycle load shedding device sends a locking signal to a fast switching device of a low-voltage side distribution room through a communication line; and the fast switching device of the low-voltage side distribution room enters a disenabled state according to the locking signal, wherein the low-voltage side distribution room is connected with multiple pieces of electric equipment through a change-over switch, the low-voltage side and the high-voltage side are connected by a pair of power feeders, and the communication line is used to transmit the locking signal. The technical problem in the related technology that the low-voltage side distribution room cannot be accurately switched off when the cycle wave of the power grid failure system collapses is solved, and the technical effects of power consumption balancing and power grid stabilizing are achieved.

Description

technical field [0001] The invention relates to the field of electric power, in particular to a method and system for stabilizing a power grid. Background technique [0002] In related technologies, when some large-scale power users face collapse due to power grid failure, the low-cycle load shedding device installed in the main substation of the power user can cut off the feeder according to the importance of the load, so that the power generation and consumption in the plant The electricity is in a basically balanced state, thus ensuring the stable operation of the power grid. [0003] For the power system of a factory with a self-provided power plant, the general substation is generally set up to connect to the grid. At the same time, the generator set of the self-provided power plant is also incorporated into the general substation after being boosted. To supply power to the lower-level equipment, the lower-level factory equipment generally adopts the power supply mode ...

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Application Information

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IPC IPC(8): H02J3/14H02H7/26H02H7/045
CPCH02H7/045H02H7/262H02J3/14Y02B70/3225Y04S20/222
Inventor 赵明军王承义高波陈磊冯剑任英武崔建设汪洋蔡伊娜
Owner CHNA ENERGY INVESTMENT CORP LTD
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