ABSTRACT Interior Permanent Magnet (IPM) motor is widely used for many industrial applications and has relatively high torque ripple generated by reluctance torque. Since the configuration of the stator has great influence on reluctance torque, different stator configuration is necessary to improve the torque performance of IPM motor. Natural variable modeling and performance comparison of Interior Permanent Magnet Motor with Concentrated winding (CW), Short pitched and Full pitched distribu...
ABSTRACT Condition monitoring of Electrical power equipment has attracted considerable attention for years. The aim of this work is to use Fuzzy logic (FL) Tool Box in building a simulation system that will diagnose all kinds of incipient faults, phase to phase fault and overloading in a transformer and monitor its conditions. Current and rate of change of current with time have been identified as the input variables, duly represented in the programme as “Error” and “Error-Dot”. ...
ABSTRACT In Nigeria, a satisfactory degree of reliability has not been attained in our power systems in recent times. The average duration of interruptions that customers experience is quite high and the degree varies from place to place. This is evident all around the nation, most especially in urban commercial cities. Previous researchers have focused on the assessment of power system reliability indices using different models. In this work, a computationally efficient modified linear con...
Abstract The electric vehicle relies on electric motors for propulsion. In this report, the case was made for the induction motor as a suitable candidate for this tractive application. Being able to control the electric motor invariably implies efficient control of the vehicle. This work reports the six-step operation of the constant volts/hertz (V/f) control technique for voltage fed induction motor drives. Mathematical equations supporting the principle is discussed and the drive is m...
ABSTRACT The environment around radio navigation aids systems (navaids) includes buildings whose roofing materials interfere with signal propagation. This interference may cause partial loss of intelligence in communication between navaids and flying aircrafts. Buildings around airports have been restricted partly because they pose threats to flight navigation. This restriction as captured in the Laws of Kenya has not been supported by sufficient data. Previous studies have shown that about h...
The internet is an unavoidable infrastructure that can provide enormous benefits to the average person/organization. Unfortunately there are elements whose goal is to interfere with the smooth benefits of it to users for either mischief or criminal intent. This has spawned a bourgeoning industry that focuses on developing and deploying countermeasures to the products of hackers and other internet pirates. Internet security is configured around several structural features that may be maintain...
ABSTRACT Surface studies done in Menengai field have indicated a huge geothermal potential and has led to the drilling of several wells. However, some of these wells have not produced as earlier projected and there are questions as to whether this field has enough permeability. The purpose of this study was to employ gravity method to understand density variations in the Menengai field by developing structural models and establishing whether there is enough permeability. Raw data received fr...
ABSTRACT Generator load is the key focus of a power plant which is significantly affected by its generating equipment which can be determined by both maintenance and the running parameters. The parameters of interest for this study were turbine inlet pressure, steam flow rate, steam chest pressure (Bowl pressure) and Generator Loading. The operation of Olkaria II power plant was started in the year 2002, with Unit I turbine taking steam at a flow rate of 62.5 Kg/Sec (225 ton/hr). After opera...
ABSTRACT In this thesis, the objective is to determine the steady state operating condition of thirteen bus Ogui- Enugu Radial power distribution network. The steady-state was determined by finding out, for a given set of loading conditions, the flow of active and reactive powers throughout the network, the voltage magnitudes and phase angles at all buses of the network. This was achieved using Newton- Raphson power flow algorithm written in MATLAB environment. A critical analysis of the net...
ABSTRACT This project involves research on loss reduction in a distribution system. The Enugu distribution system is the case study. The type of losses, the causes of losses and methods of loss reduction in distribution system were presented. A method based on a heuristic technique for reactive loss reduction in distribution system is chosen for this work because it provides realistic sizes and locations for shunt capacitors on primary feeder at a low computational burden. The Gauss-siedel m...
ABSTRACT This thesis presents the performance characteristics of a Transfer Field (TF) machine. In this machine, the two component fields revolving in the airgap are of the same pole number and the speed of operation is inversely proportional to the sum of the two pole numbers, that is, half the synchronous speed 𝜔2 of a normal induction motor. There is thus, a close relationship between the self-cascaded induction machine and the TF machine. It is shown that if the reactance of the...
Radio Frequency based wireless remote control system can be used to control the output load from remote place. In this thesis a circuit of RF module ( Tx/Rx) for wireless remote control has been used for automatic collecting data from energy meter which called Automatic meter reading (AMR) instead of using traditional meter reading system for billing. In thesis AMR has been implemented to send and receive data between energy meter and electrical distribution company system. Simulation mo...
ABSTRACT The Hydrogen sulfide gas released from the geothermal operations has a potential impact on the health of the workers and the community living within the vicinity and also the geothermal equipment. Similarly, this gas is a toxic pollutant when released into the atmosphere. Additionally, this gas is corrosive to metal-based materials including brass and iron when dissolved in water. In this regard, there is need to manage the concentrations of hydrogen sulfide in the atmosphere at acc...
ABSTRACT In real situation the physical earth is in three Dimension (3D), a two dimension (2D) and one dimension (1D) earth models may not therefore explicitly explain or characterize the 3-D Earth in all situations. This is a simple and apparent reason why one needs a higher dimensional interpretation of Magnetotelluric (MT) resistivity data in modelling geothermal reservoirs. 2D MT interpretation is frequently applied in geothermal assessment and in many cases has effectively provided accu...
Recently, one of the major and serious worldly concerns is the limitation of energy resources. Sudan, in specific, confronts a critical crises relatingto fossil fuel resources, and mostly concerning the production of electricity energy from fired thermal power plants and hydropower. The primary energy supplies in the Sudan are 29% oil and gas, 71% hydropower. In this study, the potentials for renewable energy to generate electricity in the Sudan is analyzes. The results show that, they...