scholarly journals Statistical Analysis of Electric Power Distribution Grid Outages

2021 ◽  
Vol 6 (3) ◽  
pp. 27-33
Author(s):  
Godwin Diamenu
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Power Distribution ◽  
Distribution Systems ◽  
Low Voltage ◽  
Electrical Energy ◽  
Electric Power Systems ◽  
Distribution Grid ◽  
Electric Power Distribution ◽  
Phase Conductors

Power systems in general supply consumers with electrical energy as economically and reliably as possible. Reliable electric power systems serve customer loads without interruptions in supply voltage. Electric power generation facilities must produce enough power to meet customer demand. Electrical energy produced and delivered to customers through generation, transmission and distribution systems, constitutes one of the largest consumers markets the world over. The benefits of electric power systems are integrated into the much faster modern life in such extent that it is impossible to imagine the society without the electrical energy. The rapid growth of electric power distribution grids over the past few decades has resulted in a large increment in the number of grid lines in operation and their total length. These grid lines are exposed to faults as a result of lightning, short circuits, faulty equipment, mis-operation, human errors, overload, and aging among others. A fault implies any abnormal condition which causes a reduction in the basic insulation strength between phase conductors or phase conductors and earth, or any earthed screens surrounding the conductors. In this paper, different types of faults that affected the electric power distribution grid of selected operational districts of Electricity Company of Ghana (ECG) in the Western region of Ghana was analyzed and the results presented. Outages due to bad weather and load shedding contributed significantly to the unplanned outages that occurred in the medium voltage (MV) distribution grid. Blown fuse and loose contact faults were the major contributor to unplanned outages in the low voltage (LV) electric power distribution grid.

The Software Design for an Automation Intelligent Distribution Terminal Unit in Electric Power Systems Based on C and Assembly Language

2013 ◽  
Vol 676 ◽  
pp. 302-305
Author(s):  
Hong Song ◽  
Xiao Hui Zeng ◽  
Wei Peng Zhou
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Power Distribution ◽  
Distribution Systems ◽  
Assembly Language ◽  
Electric Power Systems ◽  
Power Distribution Systems ◽  
Terminal Unit ◽  
Electric Power Distribution ◽  
Intelligent Distribution

Electric power distribution systems play an important role in electric power systems, in which automation intelligent distribution terminal units are critical for the performance of power distribution systems. The software of an automation intelligent electric power distribution terminal unit based on digital signal processor is designed in the paper, a way of admixture programming with C language and assembly language. In this manner, real-time requirement on the electric power distribution system will be satisfied, the reliability and stability of the software are ensured as while. It has a broad application prospects in electric power systems.

Medium- and low-voltage planning of radial electric power distribution systems considering reliability

2017 ◽  
Vol 11 (9) ◽  
pp. 2212-2221 ◽  
Author(s):  
Diogo Rupolo ◽  
Benvindo Rodrigues Pereira ◽  
Javier Contreras ◽  
José Roberto Sanches Mantovani
Keyword(s):  
Electric Power ◽  
Power Distribution ◽  
Distribution Systems ◽  
Low Voltage ◽  
Power Distribution Systems ◽  
Electric Power Distribution

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.   

scholarly journals Uncontrolled Electric Vehicle Charging Impacts on Distribution Electric Power Systems with Primarily Residential, Commercial or Industrial Loads

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1688 ◽  
Author(s):  
C. Birk Jones ◽  
Matthew Lave ◽  
William Vining ◽  
Brooke Marshall Garcia
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Low Voltage ◽  
Peak Load ◽  
Electric Power Systems ◽  
Primary System ◽  
Maximum Increase ◽  
Actual Distribution ◽  
The Impact ◽  
Ev Charging

An increase in Electric Vehicles (EV) will result in higher demands on the distribution electric power systems (EPS) which may result in thermal line overloading and low voltage violations. To understand the impact, this work simulates two EV charging scenarios (home- and work-dominant) under potential 2030 EV adoption levels on 10 actual distribution feeders that support residential, commercial, and industrial loads. The simulations include actual driving patterns of existing (non-EV) vehicles taken from global positioning system (GPS) data. The GPS driving behaviors, which explain the spatial and temporal EV charging demands, provide information on each vehicles travel distance, dwell locations, and dwell durations. Then, the EPS simulations incorporate the EV charging demands to calculate the power flow across the feeder. Simulation results show that voltage impacts are modest (less than 0.01 p.u.), likely due to robust feeder designs and the models only represent the high-voltage (“primary”) system components. Line loading impacts are more noticeable, with a maximum increase of about 15%. Additionally, the feeder peak load times experience a slight shift for residential and mixed feeders (≈1 h), not at all for the industrial, and 8 h for the commercial feeder.

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