The Research on Relay Protection Settings On-Line Verification System Application in Smart Grid

2014 ◽  
Vol 1070-1072 ◽  
pp. 1378-1383
Author(s):  
Hong Lei Tian ◽  
Jian Feng Liu ◽  
Yong Kuan Liu ◽  
Yuan Fang ◽  
Wen Huai Chen ◽  
...  
Keyword(s):  
Real Time ◽  
Software Design ◽  
System Application ◽  
General Principle ◽  
Relay Protection ◽  
Time Data ◽  
Structure Diagram ◽  
Verification System ◽  
Real Time Data ◽  
On Line

The intelligrid-oriented on-line relay settings verification system based on EMS real-time data are discussed, with related software system designed and fulfilled. Firstly, the research background and current situation of on-line relay settings verification system are summarized. Secondly, the on-line relay settings verification system's general principle, hardware and software design are mainly discussed. And this paper shows the designed hardware structure diagram, the software structure diagram. And the flowchart of main procedure is given. Thirdly, the methods of dealing with EMS real-time data of the on-line verification system are discussed in detail. The verifying principles of sensitivity & selectivity of relay protection are given definitely. It is able to simulate two simultaneous faults, faults in network oscillation, and faults during auto-reclosing. It checks reliability & sensitivity of relay settings under these circumstances. Finally, considering substation-area and wide-area relay protections, this paper points out some key problems of on-line relay settings verification system to be resolved, and its application prospect.

scholarly journals Development of an On-line Real Time Data Processing System for the Ion Microanalyzer

1975 ◽  
Vol 23 (4) ◽  
pp. 271-279
Author(s):  
YOSHIAKI KATO ◽  
YOSHIO TAJIMA ◽  
HAJIME HAYAKAWA ◽  
ATSUSHI SHIBATA ◽  
KOUJI NISHIWAKI
Keyword(s):  
Data Processing ◽  
Real Time ◽  
Processing System ◽  
Data Processing System ◽  
Time Data ◽  
Real Time Data ◽  
On Line ◽  
Real Time Data Processing

Gas-Liquid Chromatographic Assay for Salicylamide, Acetaminophen, and Caffeine Mixtures, Using On-Line, Computerized Real-Time Data Acquisition

1971 ◽  
Vol 54 (3) ◽  
pp. 620-624
Author(s):  
Larry L Alber ◽  
Mack W Overton ◽  
Donald E Smith
Keyword(s):  
Data Acquisition ◽  
Real Time ◽  
Peak Height ◽  
Digital Converter ◽  
Time Data ◽  
Internal Standards ◽  
Analog To Digital ◽  
Real Time Data ◽  
On Line ◽  
Liquid Chromatographic

Abstract Salicylamide, acetaminophen, and caffeine in drug formulations can be separated and quantitatively measured by GLC. Amobarbital and cyclizine are used as internal standards; the 4’ GLC column contains 3% OV-17 on Gas Chrom Q. The signal from the KCl thermionic detector is amplified and fed directly into the analog-to-digital converter of a PDP 12A LINC System computer. Results by the computer are compared to manual peak height measurements for 6 commercial preparations injected in duplicate and to results obtained from a UV procedure.

scholarly journals Online Monitoring of Transmission Line Operation Based on Power Internet of Things

2021 ◽  
Vol 2108 (1) ◽  
pp. 012053
Author(s):  
Xiaohua Zhang ◽  
Wenxiang Xue ◽  
Shuyuan Wang ◽  
Yi Lu ◽  
Hui Wang
Keyword(s):  
Internet Of Things ◽  
Transmission Line ◽  
Real Time ◽  
Edge Computing ◽  
Monitoring Methods ◽  
Time Data ◽  
Monitoring Method ◽  
Computing Model ◽  
Real Time Data ◽  
On Line

Abstract Current monitoring methods of transmission line operation status can not obtain real-time data of distributed distribution transmission line, which leads to a large error in monitoring results. Therefore, a multi-state on-line monitoring method based on power Internet of Things is proposed. Using the gateway of power internet of things to set up network control access mode, build edge computing model, and using AD chip of ADS8365W5300 to obtain the real-time data of massive distributed distribution network, then make a decision on the fault after processing and analyzing the data. This paper constructs an edge computing model which can complete the data processing and analysis in the edge node, and designs the deployment of the edge computing model. By evaluating the faults in the dynamic incremental fault set, the risk state of transmission line in the danger control area is obtained, and a multi-state on-line monitoring method is designed. The experimental results show that the proposed method can monitor the transmission line running state accuratel

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