scholarly journals A Case Study of Reliability and Performance of the Electric Power Distribution Station Based on Time between Failures

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Adam Baharum ◽  
Faris Mahdi Alwan ◽  
Saad Talib Hasson
Keyword(s):  
Power Systems ◽  
Power Distribution ◽  
Study Data ◽  
Electric Power Distribution ◽  
Distribution Company ◽  
In Series ◽  
Equipment Failures ◽  
Distribution Station ◽  
And Performance

This paper presents an algorithm for estimating the performance of high-power station systems connected in series, parallel, and mixed series-parallel with collective factor failures caused by any part of the system equipment. Failures that occur frequently can induce a selective effect, which means that the failures generated from different equipment parts can cause failures in various subsets of the system elements. The objectives of this study are to increase the lifetime of the station and reduce sudden station failures. The case study data was collected from an electricity distribution company in Baghdad, Iraq. Data analysis was performed using the most valid distribution of the Weibull distribution with scale parameterα= 1.3137 and shape parameterβ= 94.618. Our analysis revealed that the reliability value decreased by 2.82% in 30 days. The highest critical value was obtained for components T1, CBF5, CBF7, CBF8, CBF9, and CBF10and must be changed by a new item as soon as possible. We believe that the results of this research can be used for the maintenance of power systems models and preventive maintenance models for power systems.

scholarly journals A Conceptual Model for the Creation of a Process-Oriented Knowledge Map (POK-Map) and Implementation in an Electric Power Distribution Company

10.28945/2340 ◽  
2016 ◽  
Vol 11 ◽  
pp. 001-016 ◽  
Author(s):  
Babak Teimourpour ◽  
Vahid Eslami ◽  
Maghsoud Mohammadi ◽  
Milad Padidarfard
Keyword(s):  
Electric Power ◽  
Model Validation ◽  
Power Distribution ◽  
Knowledge Map ◽  
Knowledge Mapping ◽  
Electric Power Distribution ◽  
Daunting Task ◽  
Distribution Company ◽  
Process Oriented

Helping a company organize and capture the knowledge used by its employees and business processes is a daunting task. In this work we examine several proposed methodologies and synthesize them into a new methodology that we demonstrate through a case study of an electric power distribution company. This is a practical research study. First, the research approach for creating the knowledge map is process-oriented and the processes are considered as the main elements of the model. This research was done in four stages: literature review, model editing, model validation and case study. The Delphi method was used for the research model validation. Some of the important outputs of this research were mapping knowledge flows, determining the level of knowledge assets, expert-area knowledge map, preparing knowledge meta-model, and updating the knowledge map according to the company’s processes. Besides identifying, auditing and visualizing tacit and explicit knowledge, this knowledge mapping enables us to analyze the knowledge areas’ situation and subsequently help us to improve the processes and overall performance. So, a process map does knowledge mapping in a clear and accurate frame. Once the knowledge is used in processes, it creates value.

scholarly journals Short-run impact of electricity storage on CO2 emissions in power systems with high penetrations of wind power: A case-study of Ireland

2016 ◽  
Vol 231 (6) ◽  
pp. 590-603 ◽  
Author(s):  
Eoghan McKenna ◽  
John Barton ◽  
Murray Thomson
Keyword(s):  
Energy Storage ◽  
Power Systems ◽  
Wind Power ◽  
Carbon Emissions ◽  
Study Data ◽  
System Stability ◽  
Short Run ◽  
Storage Technologies ◽  
The Impact

This article studies the impact on CO2 emissions of electrical storage systems in power systems with high penetrations of wind generation. Using the Irish All-Island power system as a case-study, data on the observed dispatch of each large generator for the years 2008 to 2012 was used to estimate a marginal emissions factor of 0.547 kgCO2/kWh. Selected storage operation scenarios were used to estimate storage emissions factors – the carbon emissions impact associated with each unit of storage energy used. The results show that carbon emissions increase in the short-run for all storage technologies when consistently operated in ‘peak shaving and trough filling’ modes, and indicate that this should also be true for the GB and US power systems. Carbon emissions increase when storage is operated in ‘wind balancing’ mode, but reduce when storage is operated to reduce wind power curtailment, as in this case wind power operates on the margin. For power systems where wind is curtailed to maintain system stability, the results show that energy storage technologies that provide synthetic inertia achieve considerably greater carbon reductions. The results highlight a tension for policy makers and investors in storage, as scenarios based on the operation of storage for economic gains increase emissions, while those that decrease emissions are unlikely to be economically favourable. While some scenarios indicate storage increases emissions in the short-run, these should be considered alongside long-run assessments, which indicate that energy storage is essential to the secure operation of a fossil fuel-free grid.

Maintenance of street lights by climbing robots in Alborz electric power distribution company

2017 ◽  
Vol 2017 (1) ◽  
pp. 297-299 ◽  
Author(s):  
Nasser Eskandari ◽  
Bahman Jamshidieini ◽  
Mojtaba Rafiei ◽  
Elham Abooei
Keyword(s):  
Electric Power ◽  
Power Distribution ◽  
Climbing Robots ◽  
Electric Power Distribution ◽  
Distribution Company

scholarly journals Smart Energy Systems: The Need to Incorporate Homeostatically Controlled Microgrids to the Electric Power Distribution Industry : An Electric Utilities’ Perspective

2018 ◽  
Vol 7 (2.28) ◽  
pp. 64 ◽  
Author(s):  
Fernando Yanine ◽  
Antonio Sanchez-Squella ◽  
Aldo Barrueto ◽  
Sarat Kumar Sahoo ◽  
Felisa M. Cordova
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Power Distribution ◽  
Energy Supply ◽  
Distribution Systems ◽  
Energy Systems ◽  
Continuity Of Operations ◽  
Electric Power Distribution ◽  
Smart Energy Systems ◽  
Operational Issues

For no one is a secret that nowadays electric power distribution systems (EPDS) are being faced with a number of challenges and concerns, which emanate not so much from a shortage of energy supply but from environmental, infrastructural and operational issues. They are required to preserve stability and continuity of operations at any time no matter what, regardless of what may occur in the surroundings. This is the true measure of what sustainable energy systems (SES) are all about and homeostaticity of energy systems seeks just that: to bring about a rapid, effective and efficient state of equilibrium between energy supply and energy expenditure in electric power systems (EPS). The paper presents the theoretical groundwork and a brief description of the model for the operation of SES and their role in energy sustainability, supported by theoretical and empirical results. The concept of homeostaticity in EPDS is explained, along with its role in SES.   

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