Browsing Power Systems Engineering by Title

5G New Radio Network Dimensioning and Optimization: A Case Study in Arada Sub-City Addis Ababa

Efrem, Teshome Wolde (2022-03)

With the rapid evolution of the wireless technology feature and because the existing 4G networks will be unable to satisfy the ambitious key requirements for future wireless networks, it has strived to the development ...

Alternative Analysis of Grid-Tie Resilient Photovoltaic System for Supplying Power to Ethio-Telcom MSAG in Debre Markos Town

Alemayehu, Alazare (2020-03-24)

This thesis was undertaken to investigate Analysis of Grid-Tie Resilient PV System with battery back-up as an alternative source of energy to solve the regular grid failure problem in the Ethiotelecom MSAG, Debre Markos ...

ANN enhanced GA-PID tracking Control of 3-DOF Medical Assistant Robot

Tsehaynesh, Mulusew Tegegne (2023-10-31)

Medical robots, with manipulator arms having multiple degrees of freedom, play a crucial role in surgery for complex surgical tasks performed by instruments mounted to it. This thesis proposes and implements a tracking ...

ANN-BASED FAULT DETECTION, CLASSIFICATION AND LOCATION FOR GEFERSA – FITCHE 66KV TRANSMISSION LINE

ADDISU, MENGESHA ADAL (2023-01-30)

The overhead power transmission system is a network of conductors that are used to carry power from the generation station to the load side for most power plants around the world, including Ethiopia. Fault ...

Anti-Sway Control System for Overhead Crane Based on Fuzzy logic controller

MAHLET, GETAHUN (2021-08-26)

ARC FLASH REDUCTION IN LOW VOLTAGE SYSTEMS USING LOW VOLTAGE CIRCUIT BREAKERS

KASSIE, LAKE (2020-05-05)

Technicians working with low voltage power systems face a high risk of being exposed to arc flashes due to their inadvertence. Reducing arc flash energy level can provide increased safety for the technicians. To avoid ...

Assessment and Improvement of Reliability of Distribution System Using Network Reconfiguration (Case Study of Sebeta Substation)

Abera, Alemayehu Olamo (2022-08)

A nation's ability to develop technologically, socially, politically, and economically depends on a reliable supply of electricity. It is impossible to imagine modernization and development in any field without a ...

Assessment of Power quality of Mekenisa substation 15 KV feeder Line

Sisaye, Wondimneh (2020-03-16)

This thesis present assessment of power quality of mekenisa substation 15KV feeder line which is located in Addis Ababa around lebu area. The assessment investigates the major electrical phenomena that disturb the power ...

Assessment on protection coordination Case study of Ethiopian Existing Power Network in Addis Ababa region / 132kV Substation

Seifu, Tedla (2020-03-16)

Power system security is an important issue in power system operation and security assessments should be performed regularly both in online and off-line modes. Evaluation of protection coordination performance of an ...

AUTOMATIC FAULT DETECTION, CLASSIFICATION AND LOCATION ON DISTRIBUTION NETWORK USING ADAPTIVE NEURO-FUZZY BASED SYSTEM (CASE STUDY: R1-G5 DISTRIBUTION FEEDER IN BAHIR DAR CITY)

MAHLET, MILLION (2023-03)

Distribution systems are constantly at risk of failure due to a variety of factors, including lightning strikes, equipment aging, human error, and breakdown of power system components. These phenomena affect the system ...

Combination of Optimal Capacitor Placement and Network Reconfiguration for Power Loss Reduction in Geferssa Distribution System

Kassaw, Markos (2020-03-16)

The purpose of this study is to explore combination of optimal capacitor placement and network reconfiguration for power loss reduction in Geferssa distribution system. A distribution system’s network carries electrical ...

CONTINGENCY ANALYSIS OF ETHIOPIAN POWER SYSTEM ON 230 kV AND 400 kV TRANSMISSION LINES

BEWKET, GENANEW (2020-03-16)

To ensure Ethiopian transmission system is planned and operated safely, economically and reliably, steady state contingency analysis must be performed. Contingency analysis is an energy management system to give the operators ...

CRITICAL CLEARING TIME EVALUATION OF ETHIOPIAN 230 KV /400 KV POWER SYSTEM

TSEGA, GEBRU (2020-05-03)

This thesis uses transient and contingency analysis to investigate operating conditions of Ethiopian high voltage power system and evaluate the impact of contingencies, results from manual or fault cases, on its operational ...

DAMPING OF LOW-FREQUENCY OSCILLATION OF TIS ABAY II HYDROPOWER PLANT USING NEURO-FUZZY BASED POWER SYSTEM STABILIZER

DESSALEGN, ENDALAMAW EJJIGU (2023-02-25)

The power system continuously experiences various disturbances, which lead to lowfrequency oscillations. It takes place among the rotors of the synchronous generator, which is connected to the power system. ...

Design a PV Power Supply System for Water Pumping System (Case study for Wada Barwaqo Kebele)

ASNAKE, ELIAS (2020-03-16)

Different media broadcasted1 that some parts of the country, especially Oromia, Ethio - Somali and Afar National Regional States faced the worst drought in 50 years triggered by El Nino in 2017. The livelihoods of the ...

DESIGN AND ANALYSIS OF ADAPTIVE NEURO-FUZZY BASED POWER SYSTEM STABILIZERS FOR DAMPING OSCILLATIONS IN MULTI-MACHINE POWER SYSTEMS

Mesfin, Getaneh (2020-03-17)

The Power systems are subjected to low-frequency disturbances that might cause loss of synchronism and an eventual breakdown of the entire systems. The “low-frequency oscillations” is one of the operational constraints ...

DESIGN AND ANALYSIS OF HYBRID POWER SUPPLY SYSTEM WITH ENERGY MANAGEMENT FOR OFF-GRID TRANSCEIVER STATION (CASE STUDY ON AMBALAYA SOUTH MICROWAVE)

BELAYNEH, SEFU GEBREEGZABHER (2022-07)

There is a clear challenge to provide reliable cellular mobile service at remote locations where a reliable power supply is not available. In this regard, most of the time Ethiotelcom lost a million birr within a short ...

DESIGN AND ANALYSIS OF MULTI-LEVEL FUZZY BASED STABILIZER FOR MULTI-MACHINE POWER SYSTEMS LOW FREQUENCY OSCILLATION DAMPING

TENAW, AYEW MEZIGEBU (2021-10-15)

Power systems are often seen as complex, nonlinear, dynamic systems with a variety inherent perturbation. Those operations may trigger steady-state instability in a power system, which may also result in the accumulation ...

Design and analysis of thyristor controlled series capacitor for enhancement of power transfer capability of a 230 Kv transmission system. Case study: (230 KV Transmission Line: - Legetafo to Debre Birhan)

Fitsum, Haile Meshe (2023-02)

Industry growth, increased power consumption, the installation of new feeders, and the extension of existing feeder lines have all contributed to an extraordinary increase in electrical energy demand at the Debre Birhan ...

Design and Control of AC/DC Microgrid System for Rural Electrification in Ethiopia: A Case Study on Kirakir Village

Tanashu, Minyahil (2020-05-05)

Microgrid power systems have been possible solution to supply electricity to rural communities living far in areas where grid extension is difficult. In this paper, the designing, modeling process and ...

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