Method and system for quickly positioning bus active imbalance based on multi-source data

A positioning method and multi-source data technology, applied in the direction of multi-phase network asymmetry reduction, multi-phase network elimination/reduction of asymmetry, etc., can solve the problem that the bus cannot meet the bus positioning and processing, and affect the safety, high-quality and economical operation of the power grid and other issues to achieve the effect of high effectiveness and accuracy
CN110289628AActive Publication Date: 2019-09-27STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
Publication Date
2019-09-27

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Abstract

The invention relates to a method and system for quickly positioning bus active imbalance based on multi-source data. The method comprises the following steps: (1) if the unbalanced bus has a voltage grade of 500 kV, the SCADA real-time active data of each branch connected by the bus are compared with the real-time active data of WAMS, if the error between the two kinds of data is larger than 5 MW, the line is determined to be a defective line, and the line is subjected to defect elimination processing; and (2) if the unbalanced bus has a voltage grade of 220 kV, SCADA measurement of each branch connected by the bus is compared with state estimation and the real-time active data of an opposite line, if the error between the two kinds of data is larger than 3 MW, the line is determined to be a defective line, and the line is subjected to defect elimination processing. The problems that the existing bus power imbalance processing method can not meet quick defect positioning and processing for bus active imbalance, and the safety, quality and economic operation of the power grid is influenced can be solved.
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Description

technical field

[0001] The application belongs to the technical field of power grid safe operation, and in particular relates to a method and system for quickly locating busbar active power imbalance based on multi-source data. Background technique

[0002] With the continuous development of the power industry, the role of the power grid dispatching automation system becomes more important. Whether the bus power is balanced is an important indicator for the assessment of power quality, which directly reflects the operating status of the power grid. If there is a power unbalanced fault on the bus, the cause of the fault must be analyzed in a timely manner, and the cause must be effectively treated to ensure the normal and safe operation of the power grid.

[0003] At present, some literatures have analyzed the unbalanced busbar power: Literature [1] (Analysis and Treatment of Causes of Busbar Active Power Unbalanced [J]. Jiangxi Electric Power, 2010, 34(4): 27-29) analyzed th...

Claims

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