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An early warning method and system for reactive power operation status of a low-voltage distribution network

A low-voltage distribution network, operating state technology, applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve the problem of untimely early warning of reactive power operation state of low-voltage distribution network, and achieve the effect of scientific and effective management and monitoring

Active Publication Date: 2018-12-07
CHINA AGRI UNIV
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  • Abstract
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Problems solved by technology

[0005] Based on the defects of the prior art, the present invention provides an early warning method and system for the reactive operating state of the low-voltage distribution network to solve the technical problem of the prior art that the early warning of the reactive operating state of the low-voltage distribution network is not timely

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  • An early warning method and system for reactive power operation status of a low-voltage distribution network
  • An early warning method and system for reactive power operation status of a low-voltage distribution network
  • An early warning method and system for reactive power operation status of a low-voltage distribution network

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[0048] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0049] figure 1 It shows a schematic flowchart of a method for early warning of a reactive power operating state of a low-voltage distribution network provided by an embodiment of the present invention. like figure 1 As shown, the early warning method of the reactive power running state of the low-voltage distribution network in this embodiment includes steps S11 to S13.

[0050] S11. Obtain various state parameters of reactive power operation of the low-voltage distribution network to be warned.

[0051] The state parameters in this embodiment include four aspects: reactive power capacity configuration, reactive power control capability, reactive power control strategy...

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Abstract

The invention discloses a low voltage power distribution network wattless operation state early warning method and a system. The method comprises steps of obtaining parameters of various states of the to-be-warned low voltage power distribution network performing wattless operation, performing evaluation on the parameters of various states according to a preset evaluation model, determining the evaluation result of the wattless operation of the low voltage power distribution network, and performing early warning when the evaluation result satisfies the preset early warning condition. The invention solves the technical problem that the wattless operation state early warning of the low voltage power distribution network in the prior art is not timely and realizes the scientific and effective management and monitors the wattless operation state of the low voltage power distribution network.

Description

technical field [0001] The invention relates to the field of electric power systems, in particular to an early warning method and system for reactive power operation status of a low-voltage distribution network. Background technique [0002] As the link connecting the power grid and users, the low-voltage distribution network is related to the power supply quality and power supply capacity of the entire power grid to users. At present, the natural power factor of power users in my country is generally low, and a large number of user reactive power needs to be compensated by the grid in different places, which exacerbates the problems of low voltage quality and high line loss of the grid. Unreasonable reactive power distribution, few reactive power compensation equipment, and low commissioning rate have existed for a long time. Many power units still rely on experience for reactive power planning, lacking systematic and scientific theoretical guidance, and the effect of react...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 赵凤展郑翔王宣霖杨仁刚
Owner CHINA AGRI UNIV
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