Assessing the potential of MV automation for distribution network reliability improvement

2017 ◽  
Vol 27 (10) ◽  
pp. e2383 ◽  
Author(s):  
Andrea Rodríguez-Calvo ◽  
Rafael Cossent ◽  
Pablo Frías
Keyword(s):  
Network Reliability ◽  
Distribution Network ◽  
Reliability Improvement

Efficient Ways and Means of Reliability Increase of Distribution Networks

2015 ◽  
Vol 792 ◽  
pp. 280-285 ◽  
Author(s):  
Felix Byk ◽  
Lyudmila Kazakova
Keyword(s):  
Composite Materials ◽  
Network Reliability ◽  
Distribution Network ◽  
Distribution Networks ◽  
Electric Network ◽  
Efficiency Calculation ◽  
Reliability Improvement

The efficiency of electric network companies is influenced by the time and scale of distribution network reliability improvement. It’s proposed to make the analysis of the network reliability due to the ratio of the “current” and “limiting” availability factors. The method and the model have been developed for comparison and making a choice of the ways and means to improve the distribution network recoverability and its failure-free operation. The problems of efficiency calculation and the choice of means for 35-220 kV lines reliability improvement have been solved.The use of a cross-arm and a tower made from composite materials is considered to be the obvious example of such means.

scholarly journals Real Fault Location in a Distribution Network Using Smart Feeder Meter Data

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3242
Author(s):  
Hamid Mirshekali ◽  
Rahman Dashti ◽  
Karsten Handrup ◽  
Hamid Reza Shaker
Keyword(s):  
Fault Location ◽  
Network Reliability ◽  
Distribution Network ◽  
Estimation Method ◽  
Electrical Energy ◽  
Distribution Networks ◽  
Active Power ◽  
Financial Loss ◽  
Smart Meters ◽  
The Real

Distribution networks transmit electrical energy from an upstream network to customers. Undesirable circumstances such as faults in the distribution networks can cause hazardous conditions, equipment failure, and power outages. Therefore, to avoid financial loss, to maintain customer satisfaction, and network reliability, it is vital to restore the network as fast as possible. In this paper, a new fault location (FL) algorithm that uses the recorded data of smart meters (SMs) and smart feeder meters (SFMs) to locate the actual point of fault, is introduced. The method does not require high-resolution measurements, which is among the main advantages of the method. An impedance-based technique is utilized to detect all possible FL candidates in the distribution network. After the fault occurrence, the protection relay sends a signal to all SFMs, to collect the recorded active power of all connected lines after the fault. The higher value of active power represents the real faulty section due to the high-fault current. The effectiveness of the proposed method was investigated on an IEEE 11-node test feeder in MATLAB SIMULINK 2020b, under several situations, such as different fault resistances, distances, inception angles, and types. In some cases, the algorithm found two or three candidates for FL. In these cases, the section estimation helped to identify the real fault among all candidates. Section estimation method performs well for all simulated cases. The results showed that the proposed method was accurate and was able to precisely detect the real faulty section. To experimentally evaluate the proposed method’s powerfulness, a laboratory test and its simulation were carried out. The algorithm was precisely able to distinguish the real faulty section among all candidates in the experiment. The results revealed the robustness and effectiveness of the proposed method.

scholarly journals Distribution Network Reliability Evaluation with Load Importance Degree and Isolated Island Operation

2019 ◽  
Vol 486 ◽  
pp. 012012
Author(s):  
Guowei Li ◽  
Qinghui Zeng ◽  
Hao Liu ◽  
Junbo Wang ◽  
Rongbo Luo ◽  
...  
Keyword(s):  
Network Reliability ◽  
Distribution Network ◽  
Reliability Evaluation

Research on Reliability Evaluation Methods of Distribution System

2014 ◽  
Vol 672-674 ◽  
pp. 1441-1446 ◽  
Author(s):  
Yu Qiang Ou ◽  
Le Feng Cheng ◽  
Jian Zhong Wen ◽  
Xuan Yu Qiu ◽  
Tao Yu
Keyword(s):  
Distribution System ◽  
Evaluation Method ◽  
Network Reliability ◽  
Distribution Network ◽  
Reliability Evaluation ◽  
Evaluation Indexes ◽  
Specific Distribution ◽  
And Function ◽  
Meaning And Function

Research on reliability of distribution network has very important meaning and function to ensure the quality of power supply. This paper introduces some basic concepts of reliability in distribution network, including distribution network reliability definition, task and index. The classical reliability evaluation method was reviewed, and focused on specific distribution network, an example analysis was given, and specific reliability evaluation indexes were calculated. Finally, the future development of distribution network reliability evaluation was made a simple prospect.

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