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

Detecting system for relay protection fault and oscillation based on double CPU and its distinguishing method

A relay protection and detection system technology, applied in the direction of memory systems, emergency protection circuit devices, electrical components, etc., can solve the problem of small amount of data, prevent misoperation, meet real-time requirements, reduce time lag and accuracy defects Effect

Inactive Publication Date: 2007-04-11
TIANJIN UNIVERSITY OF TECHNOLOGY
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the test systems of domestic oscillation locking devices use single-chip microcomputers to perform mathematical operations. Due to the influence of its operating speed, the amount of data calculated by the detection device is relatively small or complex mathematical operations cannot be performed although the amount of data is large.

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
  • Detecting system for relay protection fault and oscillation based on double CPU and its distinguishing method
  • Detecting system for relay protection fault and oscillation based on double CPU and its distinguishing method
  • Detecting system for relay protection fault and oscillation based on double CPU and its distinguishing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0021] Implementation method: a relay protection fault and oscillation detection system based on dual CPUs (see Figure 1), characterized in that it consists of a data acquisition module, an A / D conversion module, a DSP signal processing module, a switch control module, and a communication and display module Composition, the output end of the said data acquisition module is connected to the input end of the A / D conversion module, the output signal of the A / D conversion is connected to the DSP signal processing module, and the DSP signal processing module outputs two signals, wherein one output is connected to the input end of the switch control module , the switch control module outputs a control signal to control the action of the oscillation locking device; the other output is connected to the communication and display module to realize remote control and display display.

[0022] The above-mentioned data acquisition module (see Figure 2) is connected to the operational amplif...

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

This invention relates to a relay fault protection and oscillation test system based on double CPU composed of a data collecting module, an A / D conversion module, a DSP signal process module, a switch control module and a display module, the differentiation method for oscillation and fault is to compute modulus value and analyze and compare the measurement values, which can differentiate fault during oscillation so as to avoid error operation of relay protection devices during oscillation.

Description

(1) Technical field: [0001] The invention belongs to the field of relay protection devices for power systems, in particular to a dual-CPU-based relay protection fault and oscillation detection system capable of correctly distinguishing oscillation and fault states to ensure the correct operation of the relay protection device and a method for distinguishing the same. (two) background technology: [0002] The relay protection device is an important part of the power system and one of the important measures to ensure the safe operation of the power system. In the modern power system, it is an indispensable part to maintain the normal operation of the system. Its correct action is of great significance to the safe operation of power equipment and the stability of the power grid. Power system oscillation refers to the phenomenon of large-scale periodic changes in the power angle between parallel-operated power systems or power plants, which belongs to an abnormal working conditi...

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
IPC IPC(8): H02H7/26G01R19/25G06F9/00G06F17/00
Inventor 马幼捷顾亚琴周雪松王新志张继东李显冰
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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