Distribution Network Accident Identification Method and System Based on Apriori Algorithm
An identification method and technology of power distribution network, applied in the field of power grid, can solve the problems of loss of value rules, lack of value, and high confidence in rules, and achieve the effect of preventing faults from missing monitoring.
Active Publication Date: 2021-07-23
STATE GRID TIANJIN ELECTRIC POWER
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In the original alarm information database, each type of alarm information has different attribute values for fault identification. In the standard Apriori algorithm, only the existence of alarm information in the alarm information set is considered, and the attribute value related to alarm information is ignored. Leads to resulting rules with high confidence but little value, possibly resulting in loss of value rules
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0048] In order to further understand the content, features and effects of the present invention, the following examples are given, and detailed descriptions are given below with reference to the accompanying drawings.
[0049] The structure of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0050] see figure 1 : A distribution network accident identification method based on Apriori algorithm,
[0051] The present invention is based on the fault alarm information collected by a power company in a certain year, and based on the improved Apriori algorithm, the association rules of the collected alarm information are mined, and the obtained association rules are further analyzed to obtain the actual Electricity safety production has instructive results.
[0052] 1. Standard Apriori algorithm
[0053] A priori algorithm (Apriori Algorithm) is one of the classic mining algorithms, which was proposed by Rakesh Agrawal and R...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a distribution network accident identification method and system based on the Apriori algorithm, which belongs to the technical field of power grids, and is characterized in that it includes: 1. Using the Apriori algorithm to extract association rules from the original alarm information database, and to screen out The candidate association rule sets with predefined thresholds are sorted from high to low according to the confidence of the candidate association rules; 2. Define three gain parameters for alarm signals, and calculate the gain parameters of each rule in the candidate rule set; 3. Reorder the candidate association rule sets based on the calculated gain parameters, and filter out the association rules higher than the predetermined threshold to obtain the optimal association rule set; 4. Encapsulate the rules in the optimal association rule set, and Its "package" becomes an "event package", and the "event package" is used to retrieve real-time monitoring information, identify the real-time situation of the distribution network operation, and assist regulators to identify and deal with faults.
Description
technical field [0001] The invention belongs to the technical field of power grids, and in particular relates to an Apriori algorithm-based fault identification method and system for a power distribution network. Background technique [0002] With the rapid development of modern electric power, the scale of the distribution network is also increasing. As the terminal basic network in the power system, the distribution network has a complex and changeable structure, and there are problems such as many measurement and control objects, complex topology of the power grid, and harsh terminal use environment. . Once a fault occurs, it will have a great impact on the distribution network itself and people's daily production and life. However, faults in the distribution network are inevitable. Therefore, it is of great significance to efficiently diagnose and deal with faults in the distribution network, so that the entire distribution network can operate safely and improve the rel...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/08
CPCG01R31/086G01R31/088
Inventor 王群田圳徐元孚郭凌旭王伟力王瑶袁中琛李赛峰蔚鑫栋梁刚王钰蒋立媛马占军白天予张威杨要中
Owner STATE GRID TIANJIN ELECTRIC POWER