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A risk assessment method for unit system distribution network operation

A technology for risk assessment and power grid operation, applied to electrical components, circuit devices, AC network circuits, etc., can solve the problems of lack of reliability assessment and early warning methods for unit system distribution network models, so as to improve power supply reliability and reduce hazards Effect

Active Publication Date: 2021-11-09
NARI TECH CO LTD +4
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The risk assessment of traditional distribution automation only usually takes the feeder as a unit to model the entire network, and then conducts network topology analysis and risk assessment based on this model. Reliability assessment and security early warning method of network model establishment

Method used

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  • A risk assessment method for unit system distribution network operation
  • A risk assessment method for unit system distribution network operation
  • A risk assessment method for unit system distribution network operation

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Embodiment Construction

[0038] The technical scheme of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the examples given are not intended to limit the present invention.

[0039] Attached below figure 1 The present invention is further described.

[0040] Such as figure 1 As shown, a unit system distribution network operation risk assessment method includes the following steps:

[0041] Step 1. Taking the power supply unit as the smallest logical analysis unit, obtain the unit-based distribution network model and its operation mode;

[0042] Each power supply grid itself is a relatively independent power supply area, which generally has little contact with other power supply grids, but there are contact switches between feeders in each power supply grid. Obtain the minimum analysis element and the minimum analy...

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Abstract

The invention relates to a risk assessment method for the operation of a unit system distribution network, which belongs to the technical field of power system intelligent analysis and control. The operation risk analysis of the distribution network first takes the power supply unit as the smallest logic analysis unit, and obtains the model and operation mode of the distribution network in the power supply logic unit; then quantitatively evaluates the occurrence probability and severity of various risk factors based on the risk value matrix, Construct the unit distribution network operation risk assessment index system. Finally, after the distribution network risk analysis of each logic unit is completed, the risk rating is performed on the calculated grid risk assessment index; through the present invention, it is convenient to automatically identify the weak link of the distribution network in each unit cell, and it is possible to have a greater impact on the network in advance. Prevent the risk items, reduce the harm to the unit distribution network, and improve the reliability of power supply for users.

Description

technical field [0001] The invention belongs to the technical field of power system intelligent analysis and control, in particular to an operation risk assessment method of a unit system distribution network. Background technique [0002] As the scale of urban construction continues to expand, the scale of urban distribution networks continues to increase. How to effectively and clearly manage the operation, maintenance, and troubleshooting of distribution networks cannot be simply classified as management problems or technical problems. combined. The grid-based unit planning refers to dividing the medium-voltage distribution network into several power supply units reasonably according to the block based on the power demand of the plot, and carrying out the distribution network planning with the unit as the unit, forming "one grid, one plan" . Through planning, each power supply unit forms a relatively independent line grid connection structure, independently undertakes t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 赵家庆苏大威吴婧妤吕洋霍雪松闪鑫田江王波丁宏恩吴爽吴博文冯秋侠
Owner NARI TECH CO LTD
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