Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

State analysis method for secondary system of smart substation based on fuzzy c-means clustering algorithm

A smart substation and secondary system technology, which is applied in computing, instruments, data processing applications, etc., can solve the problem of large information capacity of the secondary system of smart substations, multi-variation of state assessment model schemes, difficulty in meeting universal reliability requirements, etc. question

Active Publication Date: 2017-10-20
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The secondary system of smart substation has a large information capacity and many data types, which makes it difficult to establish a unified and standardized data information communication model, resulting in the dissimilation of its state assessment models and schemes, and it is difficult to meet its general reliability requirements

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • State analysis method for secondary system of smart substation based on fuzzy c-means clustering algorithm
  • State analysis method for secondary system of smart substation based on fuzzy c-means clustering algorithm
  • State analysis method for secondary system of smart substation based on fuzzy c-means clustering algorithm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention will be further described below in conjunction with drawings and embodiments.

[0040] Based on the fuzzy C-means clustering algorithm for the state analysis method of the secondary system of the smart substation, the maximum operating temperature of the equipment, the optical transmission power and receiving sensitivity, and the insulation resistance of the equipment to the ground are selected as the key characteristic quantities that affect the operating state of the equipment. Common types of secondary system faults include communication faults, protection refusal or malfunction, and abnormal alarms.

[0041] Fuzzy C-means Clustering Algorithm

[0042] Firstly, the basic principle of C-means clustering algorithm is introduced, and then fuzzy C-means algorithm is introduced.

[0043] If N i is the i-th cluster Γ i The number of samples in , m i is the mean of these samples, namely:

[0044]

[0045] Among them, y is a d-dimensional matrix...

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

No PUM Login to View More

Abstract

The invention relates to an intelligent substation secondary system state analysis method based on a fuzzy C-mean clustering algorithm. The intelligent substation secondary system state analysis method has the advantages that by establishing a defect database, a database comprising the defect type, the highest equipment operating temperature, the light transmitting power, the receiving sensitivity and the equipment ground insulation resistance value when secondary equipment is in failure is found out from a large number of equipment operating conditions, the load data, various state detection data, the defect information, the failure and accident information and the overhaul data of a production management system, a secondary equipment operation management accounting system and other systems of a power system. The operating state of a substation secondary system can be obtained in real time, so that the maintenance can be performed before the occurrence of a problem.

Description

technical field [0001] The invention relates to the technical field of substation secondary system security, in particular to a method for analyzing the security state of a substation secondary system. Background technique [0002] With the development of IEC61850 standard information communication technology and intelligent equipment, the traditional substation secondary system composed of simple relay protection, safety automatic device and necessary communication means has developed into an intelligent equipment and information transmission network. It is a complex and integrated smart substation secondary system that is characterized by wide-area protection system, measurement system, communication system and wide-area monitoring system. The safe and reliable operation of the secondary system of the smart substation is crucial to the safety of the smart substation system. Hidden faults of relay protection devices do not appear during normal operation, but only appear wh...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06G06Q50/06
Inventor 陈曦徐瑞林陈涛张友强钟加勇王洪彬余红欣姚树友何燕刘祖建熊伟黄飞
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com