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

Substation secondary equipment fault early warning method and device

A technology for secondary equipment and fault early warning, applied in the field of intelligent substations, can solve the problems of low early warning efficiency of early warning methods, low early warning efficiency of early warning devices, etc., and achieve the effect of efficient analysis

Pending Publication Date: 2020-03-06
XUJI GRP +2
View PDF9 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide an early warning method for secondary equipment failure in substations to solve the problem of low early warning efficiency in existing early warning methods; The problem of inefficiency

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
  • Substation secondary equipment fault early warning method and device
  • Substation secondary equipment fault early warning method and device
  • Substation secondary equipment fault early warning method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Embodiment of the early warning method for secondary equipment faults in substations:

[0021] The substation secondary equipment failure early warning method proposed in this embodiment is as follows: figure 1 shown, including the following steps:

[0022] 1) Establish a rule base for early warning of equipment failure.

[0023] The rule base includes the data types of each secondary device (referred to as the device) and the corresponding alarm threshold, each data type corresponds to a data point ID, and monitors the monitoring values ​​of different data types of each device. Different data types of different devices correspond to different alarm thresholds. Each device and the data type (that is, the monitoring range) of each device are listed in Table 1:

[0024] Table 1 Monitoring scope

[0025]

[0026] The corresponding alarm threshold is analyzed by collecting a large number of equipment measurement point data (including historical data corresponding to d...

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 a substation secondary equipment fault early warning method and device, and belongs to the technical field of intelligent substations. The substation secondary equipment faultearly warning method comprises the following steps: establishing an equipment fault early warning rule base, wherein the equipment fault early warning rule base comprises a data type of each piece ofequipment and a corresponding alarm threshold value; generating a reference curve of each data type according to historical data of normal operation of the equipment; generating a real-time curve ofeach data type according to the real-time data of equipment operation; subtracting the reference curve and the real-time curve of the same data type, and obtaining an early warning result according tothe change of the obtained difference value and a corresponding warning threshold value; and performing early warning according to early warning result. According to the substation secondary equipment fault early warning method, fault early warning of the secondary equipment can be simply and efficiently analyzed, and operation and maintenance personnel can be helped to discover equipment defectsas soon as possible and maintain the equipment, and normal operation of the equipment is prevented from being influenced by faults.

Description

technical field [0001] The invention relates to a fault warning method and device for secondary equipment in a substation, and belongs to the technical field of intelligent substations. Background technique [0002] Smart substations use a large number of intelligent secondary devices (IEDs) such as protection devices, measurement and control devices, merging units, and intelligent terminals. These secondary devices have strong self-inspection capabilities and communication capabilities. Secondary equipment operation status information, including: equipment internal temperature, working voltage, device differential current, optical port light intensity, network traffic, etc. These data are stored in the real-time library of the monitoring system. [0003] After the secondary equipment works for a long time, the hardware and software will inevitably gradually age and deteriorate, resulting in a decrease in its operational reliability. Because some abnormal signals will gradu...

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 Applications(China)
IPC IPC(8): G06Q10/00G06Q50/06
CPCG06Q10/20G06Q50/06Y04S10/50
Inventor 张巧霞王广民慕宗君肖亮李宏川陈哲陈斌过锐李江林
Owner XUJI GRP
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