Optimal location of voltage sags monitors by determining the vulnerable area of network buses

2021 ◽  
Author(s):  
Hamed Jalalat ◽  
Mohammad Tavakoli Bina ◽  
Amir Shahirinia
Keyword(s):  
Optimal Location ◽  
Voltage Sags ◽  
Vulnerable Area

An Approach Based on Analytical Expressions for Optimal Location of Voltage Sags Monitors

2009 ◽  
Vol 24 (4) ◽  
pp. 2034-2042 ◽  
Author(s):  
Elisa Espinosa-Juarez ◽  
Araceli Hernandez ◽  
Gabriel Olguin
Keyword(s):  
Optimal Location ◽  
Voltage Sags ◽  
Analytical Expressions

Impacts of Voltage Sags and Protection Coordination on Sensitive Equipment in Distribution Systems

2010 ◽  
Vol 130 (6) ◽  
pp. 551-558 ◽  
Author(s):  
Le Viet Tien ◽  
Thavatchai Tayjasanant ◽  
Akihiko Yokoyama ◽  
Bundhit Eua-Arporn
Keyword(s):  
Distribution Systems ◽  
Voltage Sags

Voltage Stability Enhancement with Optimal Placement of IPFC

2019 ◽  
Vol 8 (4) ◽  
pp. 9465-9471
Keyword(s):  
Transmission Line ◽  
Objective Function ◽  
Search Algorithm ◽  
Cuckoo Search ◽  
Test System ◽  
Optimal Location ◽  
Optimal Placement ◽  
Utilization Factor ◽  
Location Selection ◽  
Multi Objective

This paper presents a novel technique based on Cuckoo Search Algorithm (CSA) for enhancing the performance of multiline transmission network to reduce congestion in transmission line to huge level. Optimal location selection of IPFC is done using subtracting line utilization factor (SLUF) and CSA-based optimal tuning. The multi objective function consists of real power loss, security margin, bus voltage limit violation and capacity of installed IPFC. The multi objective function is tuned by CSA and the optimal location for minimizing transmission line congestion is obtained. The simulation is performed using MATLAB for IEEE 30-bus test system. The performance of CSA has been considered for various loading conditions. Results shows that the proposed CSA technique performs better by optimal location of IPFC while maintaining power system performance

Subepithelial Connective Tissue Graft for Gingival Recession Coverage: A Case Report

2020 ◽  
Author(s):  
Anita Mehta
Keyword(s):  
Case Report ◽  
Connective Tissue ◽  
Gingival Recession ◽  
Tooth Brushing ◽  
Vulnerable Area ◽  
Connective Tissue Graft ◽  
Tissue Graft ◽  
Keratinized Tissue ◽  
Subepithelial Connective Tissue Graft ◽  
Dentinal Hypersensitivity

The Gingival recession is considered a multi-factorial. The etiology may be an anatomically vulnerable area, faulty tooth brushing, high frenum attachment. In cases where there is progressive recession, aesthetics concern or increasing dentinal hypersensitivity, we can do recession coverage. Depending upon the presence or absence of adequate keratinized tissue we can choose the technique. In case of adequate width of keratinized tissue, usually we can do displaced flap and in case where there is inadequate width, we can do gingival grafting.

Impact of plumb location on the determination accuracy of chimney heeling by photographic method

2017 ◽  
Vol 919 (1) ◽  
pp. 55-59
Author(s):  
O.V. Raskatkina
Keyword(s):  
Image Processing ◽  
Experimental Research ◽  
Optimal Location ◽  
Paint System ◽  
Photographic Method ◽  
Round Shape ◽  
Straight Line ◽  
Left And Right

There is a method of using the corded plumb as vertical reference straight line, located in front of the objective of a digital photocamera in the article. When we take picture of the object under study, there will be this straight line in the photo, from which we can carry out all necessary measurements in the Paint system with the following conversion them into metric system. All possible variants of location of the reference straight line relative to it axis are considered by the example of the construction of the tower round shape and it is shown a method of heeling calculation by image processing results. Experimental research to determine the degree of influence of plumb location in the photo relative to it axe on the accuracy of the heeling determination was carried out by shooting the brick chimney with the 30 metres height when the plumb is located on the chimney axis and on different distance from the left and right of the axis. It is set in the result that the plumb location has influence on the accuracy of heeling determination. The optimal location is on the centre of the top section of the chimney and there is shown the method of accounting corrections due to inaccurate location.

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