Mathematical morphology based phase selection scheme in digital relaying

2005 ◽  
Vol 152 (2) ◽  
pp. 157 ◽  
Author(s):  
L. Zou ◽  
P. Liu ◽  
Q. Zhao
Keyword(s):  
Mathematical Morphology ◽  
Phase Selection ◽  
Selection Scheme

An Integrated Fault Phase Selection Scheme for Double Circuit Lines on the Same Tower

2014 ◽  
Vol 668-669 ◽  
pp. 657-660
Author(s):  
Shu Tian ◽  
Fang Fang Liu
Keyword(s):  
Adaptive Capacity ◽  
Fault Location ◽  
Phase Selection ◽  
Selection Scheme ◽  
Transition Resistance ◽  
Simulation Results

For double circuit lines on the same tower, traditional phase selectors for single lines can not operate correctly in crossing-line faults. To ensure the performance of faults phase selection in the single lines and meanwhile achieve accurate phase selection in crossing-line faults, an integrated fault phase selection scheme based on fault component current is proposed. Firstly, faults are divided into single lines faults, same-name-phase crossing-line faults and non same-name-phase crossing-line faults, then the phase selection is classified. The process with adaptive capacity can automatically select the suitable phase selector not affected by fault types. Simulation results via PSCAD/EMTDC show that the phase selection scheme based on fault component current has good performances for different fault types, fault location and transition resistance.

A Novel Fault Phase Selection Scheme Utilizing Fault Phase Selection Factors

2015 ◽  
Vol 43 (5) ◽  
pp. 491-507 ◽  
Author(s):  
Jing Ma ◽  
Wei Ma ◽  
Xiangsheng Zhu ◽  
Xiang Gao ◽  
Yinan Li ◽  
...  
Keyword(s):  
Phase Selection ◽  
Selection Scheme ◽  
Selection Factors

Femtocell Selection Scheme for Reducing Unnecessary Handover and Enhancing Downlink QoS in Cognitive Femtocell Networks

2017 ◽  
Author(s):  
Hoang Nhu Dong ◽  
Hoang Nam Nguyen ◽  
Hoang Trong Minh ◽  
Takahiko Saba
Keyword(s):  
Cellular Networks ◽  
Estimation Methods ◽  
Mobility Prediction ◽  
Capacity Estimation ◽  
Femtocell Networks ◽  
Selection Scheme ◽  
Indoor Communications ◽  
Performance Results ◽  
Cognitive Femtocell

Femtocell networks have been proposed for indoor communications as the extension of cellular networks for enhancing coverage performance. Because femtocells have small coverage radius, typically from 15 to 30 meters, a femtocell user (FU) walking at low speed can still make several femtocell-to-femtocell handovers during its connection. When performing a femtocell-to-femtocell handover, femtocell selection used to select the target handover femtocell has to be able not only to reduce unnecessary handovers and but also to support FU’s quality of service (QoS). In the paper, we propose a femtocell selection scheme for femtocell-tofemtocell handover, named Mobility Prediction and Capacity Estimation based scheme (MPCE-based scheme), which has the advantages of the mobility prediction and femtocell’s available capacity estimation methods. Performance results obtained by computer simulation show that the proposed MPCE-based scheme can reduce unnecessary femtocell-tofemtocell handovers, maintain low data delay and improve the throughput of femtocell users. DOI: 10.32913/rd-ict.vol3.no14.536

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