scholarly journals ELECTRICAL LOAD RELIABILITY ASSESSMENT USING ANALYTICAL METHOD, CASE STUDY: FUPRE 1 X 2.5MVA INJECTION SUBSTATION

2020 ◽  
Vol 26 (3) ◽  
pp. 39-51
Author(s):  
AMAKIRI OKILO FRIDAY ◽  
OSHEVIRE PATRICK
Keyword(s):  
Analytical Method ◽  
Distribution System ◽  
Research Work ◽  
Reliability Assessment ◽  
Electrical Load ◽  
Reliability Indices ◽  
College Of Technology ◽  
Petroleum Resources ◽  
Distribution Company ◽  
Technology Administration

This research work presents the reliability assessment of electrical load distribution system in Federal University of Petroleum Resources, Effurun (FUPRE), Warri using the Analytical method and ETAP software as the simulation tool to run the reliability assessment of the System. The analytical analysis was conceded out by using August 2018 – August 2019 historical data of Tetfund Classrooms Blocks, Hostels, College of Technology, Administration Block, Health Center, and College of Science Feeder obtained from the Benin Electricity Distribution Company [BEDC]. The results conceded revealed that College of Technology Injection Substation is the most reliable in the distribution network when compared to the other five substations around the institution premises as it recorded system indices of ASAI: 99.30, SAIFI: 1.10, SAIDI: 55.35, CAIDI: 123.04 in August 2018 to August 2019. Nevertheless, the total reliability indices of the six substations under investigation as obtained from the analysis, and it shows that availability of power to FUPRE distribution is very poor as compared with the benchmark of IEEE ASAI of 99.99 for distribution substation availability.

scholarly journals Evaluation of Distribution System Reliability Indices Using Fuzzy Reasoning Approach

2021 ◽  
Vol 5 (3) ◽  
pp. 1-8
Author(s):  
A. Paci ◽  
R. Bualoti ◽  
M. Çelo
Keyword(s):  
Fuzzy Logic ◽  
System Reliability ◽  
Distribution System ◽  
Weather Conditions ◽  
Electrical Current ◽  
Point Of View ◽  
Reliability Indices ◽  
Distribution Company ◽  
Distribution System Reliability ◽  
Current Loading

The most fundamental problems in the distribution system are the quality, the continuity, and the power supply. Political and economic changes were accompanied by changes in the structure of the electric load in the distribution network. Lack of investment and aging of the distribution company assets was accompanied by a decrease in the reliability of the distribution system. Identification and classification of assets from the point of view of their maintenance and replacement was one of the problems that were posed to the engineers. Fuzzy logic can be successfully used to evaluate distribution system reliability indices. In this paper fuzzy logic is used to evaluate the distribution system reliability indices of lines and transformers using six input variables. These variables considered the most important are: Age, Operation, Maintenance, Electrical current loading, Exposure and Weather conditions (Wind or Temperature). The fuzzy inferences knowledge-based IF-THEN rule is developed using Matlab Fuzzy software. The detailed analysis of the fuzzy system surfaces shows that the factors taken in consideration are dynamically and accurately connected to each other. The constructed rules based in engineering experience accurately represent the Reliability Indices.

Reliability Assessment of Microgrid-Integrated Electrical Distribution System

2022 ◽  
pp. 958-977
Author(s):  
Baseem Khan ◽  
Mesfin Fanuel
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Renewable Energy Sources ◽  
Reliability Assessment ◽  
Smart Structure ◽  
Energy Sources ◽  
Reliability Indices ◽  
Micro Grid ◽  
Distribution System Reliability ◽  
Renewable Energy Generation

Due to the transition of traditional power system to smart structure, integration of renewable energy sources is of great importance. It is performed by using distributed generators and Micro grid. Integration of renewable sources is very useful for the reliability enhancement of distribution system as energy can be supplied locally at distributed level. Therefore, this chapter provides an overview of various reliability methods which are utilized for finding the impact of renewable energy generation on distribution system reliability assessment. These renewable energy sources are integrated in the distribution system at distributed and Micro grid level. Various characteristics of renewable energy sources are discussed to model them. A general problem of reliability assessment in terms of reliability indices is also discussed.

Energy Audit and Reliability Analysis of Afe Babalola University Power Distribution System

2020 ◽  
pp. 180-194
Author(s):  
Oladimeji Joseph Ayamolowo ◽  
Ayodeji Olalekan Salau
Keyword(s):  
Power Distribution ◽  
Distribution System ◽  
Distribution Systems ◽  
Reliability Assessment ◽  
Power Distribution Systems ◽  
Energy Audit ◽  
Reliability Indices ◽  
Distributed Generators ◽  
Distribution Process ◽  
The University

Energy audit and reliability assessment of distribution systems are important to keep track of power system's performance. It helps to minimize power interruptions to customers, boost industrialization, research, and economic development in any country or community. This chapter presents the reliability assessment of power distribution systems in Afe Babalola University, Ado-Ekiti, Nigeria. A critical assessment of the power distribution process was carried out with data obtained from the central Substation, taking into account various reliability indices. Furthermore, the load consumption of each substation was considered for the period of January to December, 2017. The results obtained show that the University attained a power availability (ASAI) of 0.99984 because of the presence of strategically placed distributed generators (DGs). The reliability assessment revealed SAIDI as 1.4347 hours/customer year, CAIDI as 0.6620 hours/customer interruption, ASUI as 0.00016, and SAIFI as 2.16712 failures/ customer year.

Reliability Assessment of Microgrid-Integrated Electrical Distribution System

2020 ◽  
pp. 136-156
Author(s):  
Baseem Khan ◽  
Mesfin Fanuel
Keyword(s):  
Renewable Energy ◽  
Distribution System ◽  
Renewable Energy Sources ◽  
Reliability Assessment ◽  
Smart Structure ◽  
Energy Sources ◽  
Reliability Indices ◽  
Micro Grid ◽  
Distribution System Reliability ◽  
Renewable Energy Generation

Due to the transition of traditional power system to smart structure, integration of renewable energy sources is of great importance. It is performed by using distributed generators and Micro grid. Integration of renewable sources is very useful for the reliability enhancement of distribution system as energy can be supplied locally at distributed level. Therefore, this chapter provides an overview of various reliability methods which are utilized for finding the impact of renewable energy generation on distribution system reliability assessment. These renewable energy sources are integrated in the distribution system at distributed and Micro grid level. Various characteristics of renewable energy sources are discussed to model them. A general problem of reliability assessment in terms of reliability indices is also discussed.

scholarly journals Reliability Assessment of Radial Distribution System

2020 ◽  
Vol 9 (4) ◽  
pp. 1171-1173
Keyword(s):  
Radial Distribution ◽  
Distribution System ◽  
Distribution Network ◽  
Reliability Assessment ◽  
Point Distribution ◽  
Radial Distribution System ◽  
Reliability Indices ◽  
Load Point ◽  
Radial Network

In this paper the reliability indices are calculated for radial distribution network is improved by placing isolators. Isolators placed at near the tee section of the main radial distribution network used as protection for the load points under abnormal conditions. A seven load point distribution radial network is used to study without isolators and with isolators. Reliability indices evaluated and compared for radial network with isolators and without isolators.

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