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A power dispatching system line state accurate analysis method

A line state and analysis method technology, applied in the direction of circuit devices, AC network circuits, electrical components, etc., can solve the problems of consuming a lot of energy and not being able to know the cause of state switching events on the line in time, so as to improve accuracy and time Accuracy and judgment speed, improve the effect of accuracy

Pending Publication Date: 2019-05-17
STATE GRID ANHUI ELECTRIC POWER +2
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Problems solved by technology

[0005]The existing method of researching and judging the cause of line state switching in the dispatching system is to use the method of manually inquiring the scene and querying the dispatching log by telephone. This relatively primitive method is caused by Problems include: unable to know the cause of state switching events on the line in time; it takes a lot of energy and relies on experience for research and judgment

Method used

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  • A power dispatching system line state accurate analysis method
  • A power dispatching system line state accurate analysis method

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Embodiment Construction

[0044] refer to figure 1 , a method for accurately analyzing the line state of a power dispatching system proposed by the present invention, comprising the following steps:

[0045] S1. Obtain the information of all lines in the power grid, extract the numbers of each line, and store the line numbers in a preset database. Specifically, in this step, the information of all lines in the power grid is directly read from the D5000 system for provincial dispatching.

[0046] S2. Acquiring the event statistics information of the day of the power grid, and obtaining accident abnormality information and operation change information from the event statistics information of the day. Accident exception information set = A-B, A is the event that includes tripping in the event statistics information of the day, and B is an event that includes successful coincidence in the event statistics information of the day. That is, in this embodiment, the abnormal accident information is a line event...

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Abstract

The invention provides a power dispatching system line state accurate analysis method. The line state accurate analysis method comprises the following steps of extracting the number of each line; obtaining power grid current-day event statistical information, and obtaining accident abnormal information and operation change information from the current-day event statistical information; obtaining accident abnormal information containing a line number and operation change information as an event analysis object; retrieving keywords in the event analysis objects, judging whether the line events corresponding to the event analysis objects are power failure or power transmission according to the keywords, and marking the power failure or power transmission; and for an event analysis object marked as power failure and power transmission, substituting the current, active power and reactive power at the head end and the tail end of the current line respectively into the power failure proofreading model and the power transmission proofreading model for proofreading. According to the method, checking of the line events in the power grid current day event statistical information is achieved,line state analysis is conducted based on the screened line events, the accuracy of power grid line state analysis is improved, and the analysis efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of power grid dispatching, in particular to a method for accurately analyzing line states of a power dispatching system. Background technique [0002] The state of the dispatching system line is divided into power failure and operation, and the transition between the two states is called state switching, which is divided into power failure or power transmission. [0003] Dispatch production data is an important part of grid power quality system monitoring. The power data integrated by the system from the dispatch technical support system mainly includes grid frequency, grid voltage, grid equipment ledger, and power transmission and transformation equipment switching and other related information. Accurately judging the time and equipment of dispatching power transmission and transformation equipment state switching events can reflect the operating status of a certain regional power grid, provide sufficient s...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06H02J3/00G06F16/35
CPCY04S10/50
Inventor 赵永生李杨月秦浩江和顺甘得志余丽李燚喆谢芝东殷骏程琦
Owner STATE GRID ANHUI ELECTRIC POWER
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