Browsing by Author "Boubakari, Abdoulaye"

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    Microcontroller Based Power Theft Identifier
    (Department of Electrical and Electronic Engineering, Islamic University of Technology (IUT), Board Bazar, Gazipur-1704, Bangladesh, 2015-11-15) Harris, Muhammad; Al-mulaiki, Mahmoud Srhan; Boubakari, Abdoulaye
    Science and technology with all its miraculous advancements has fascinated human life to a great extent that imagining a world without these innovations is hardly possible. While technology is on the raising slope, we should also note the increasing immoral activities. With a technical view, “Power Theft” is a non-ignorable crime that is highly prevalent, and at the same time it directly affects the economy of a nation. This project is designed to find out such power theft in the normal distribution lines. Even though there are certain practical problems in implementing this kind of systems in future there is a scope for development of these types of systems. This project is using the principle of the differential protection scheme for the identification of the power theft. The differential protection scheme consists of two CTs (current transformers) connected at both the terminals of the load. If there is no fault in the load then the secondary currents of both the CTs will be same. Using the same principle one CT is connected at the starting end of the distributor and the remaining other CT is connected to the different loads which are legal. If there is no power theft in the line then the vector sum of all the CT’s which are connected to the load will be equal to the current in the main ct. if there is a difference then we can make out that it should either be the power theft or a fault in the line.
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    Prospect of renewable energy based power systems in Africa (Cameroon-Djibouti-Somalia)
    (IUT, EEE, 2016-11-20) Boubakari, Abdoulaye; Tahir, Ali Khalid; Osman, Said
    Cameroon has vast renewable energy resource potentials, with a hydropower potential of about 55,200MW, second only to the Democratic Republic of Congo in Africa. So far, its energy needs are met by 4.8% hydropower (which accounts for less than 5% of its total hydropower potential), 0% wind and 0% solar. Cameroons’ energy sector still goes through insufficient electrical energy production, especially during the heart of the dry season, which runs from December through March. Coincidentally, the wind and solar power potentials for Cameroon are at their peak during these months and could conveniently supplement for the shortfalls in generation during these periods. In this research, technical analysis was carried out to determine the wind and solar energy resource potentials for Cameroon using the Homer Pro software tool provided by CANMET Canada. This analysis revealed that the northern regions of Cameroon had higher wind and solar resource potentials than any other location in Cameroon. A 2MW installed wind energy capacity would be capable of generating well over 1.5GWh electrical energy per year, while a 2KW installed solar energy capacity will be capable of generating well over 3MWh electrical energy per year. In the final sections, financial analysis was carried out to determine the economic viability of such projects and the possibility for self-financing. Emission analyses were also done based on the ability for such projects to offset greenhouse gas emissions and ensure sustainability in the energy sector. The analysis for Maroua revealed that 78.6tCO2/yr. for wind and 0.1tCO2/yr. for solar could be reduced by those installations. Finally, the legislations and legal frameworks governing the energy sector in Cameroon were dissected to determine possible weaknesses and constraints limiting the use, promotion and development of the full potential of Cameroon’s renewable energy resources. From the weather data recorded on the site of Dogba-Maroua over a period of 12 months (April 2015 to April 2016), a design engineering of a wind park of 30 KW in the region of 11 the far-north of Cameroun was carried out. The analytical study of wind parameters (speeds, directions, turbulences intensities) was made with the Homer Pro software. The study undertaken with the wind-generator of the Alstom ECO 100/3000 Class I, having a power of 3000 kW, 100 m diameter of rotor reveals an annual energy production of 22 699,5 MWh / year the directions where the wind blows are more recorded in sectors 30°NNE, 60°NE, 0°N and 90°E and are opposed to the directions where the flow winds are most turbulent (330° NNW, 0° N, 30° NNE, 60°).