Full redundancy merging unit apparatus

A unit device and fully redundant technology, applied in the field of power transmission and transformation, can solve the problems of ineffective alarm and wrong output data, etc., and achieve the effect of simple structure, reliable output and strong implementability

Active Publication Date: 2016-09-28
BEIJING SIFANG JIBAO AUTOMATION
View PDF6 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology can only prevent abnormalities in the AD conversion link. For the CT conversion link, the link after the AD sampling output has problems, and it cannot e

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
  • Full redundancy merging unit apparatus
  • Full redundancy merging unit apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings of the description.

[0023] In the embodiment of the present application, the zero-sequence current I0 is used as the verification of the A-phase current Ia, the B-phase current Ib, and the C-phase current Ic. Wind the primary sides of the three CTs Ia, Ib, and Ic together as the primary side of I0. Under normal circumstances, the sum of the currents of the instantaneous values ​​of Ia, Ib, and Ic should be equal to I0, so the sum of the primary currents converted from the secondary current of the secondary side should satisfy the following relationship: Ia+Ib+Ic=I0.

[0024] When the above formula is not satisfied in a certain time section, it means that there is a problem with the downstream components of the secondary side current of the CT, and the data of this data section is abnormal. as attached figure 1 shown.

[0025] attac...

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 discloses a full redundancy merging unit apparatus. Full redundancy design of hardware and a data processing unit enables outputting of a redundant sampling value SV to a protective relaying apparatus. The protective relaying apparatus effectively determines the presence of abnormity through redundant processing on SV, prevents protective maloperation caused by damage of any element or abnormity of any software module under a single system, and at the same time can find faults of the apparatus in time, sounds alarm in time and conducts maintenance, and guarantees that program operation and data output are reliable. The merging unit apparatus can be directly applied to process level devices applied to engineering.

Description

technical field [0001] The invention belongs to the field of power transmission and transformation, and in particular relates to a fully redundant merging unit device. Background technique [0002] At present, smart substations have brought far-reaching influence and great changes to the automatic operation and management of substations. They are an important part of smart grid construction and have great economic and technical significance. With the wide application of digital communication technology in smart substations, the merging unit has become an important link in the process of signal sampling and transmission in substations, and its function and performance have attracted widespread attention. However, as an emerging technology field, the smart substation adopts new technology for the merging unit. Because it is in the early stage of technology development, its functions and stability are not yet mature enough. Therefore, the improvement of the performance of the ...

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): G01R31/00H02J13/00
CPCH02J13/0006G01R31/00Y04S40/124Y02E60/00
Inventor 王双剑董志平杜振华张国成王志华
Owner BEIJING SIFANG JIBAO AUTOMATION
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap