Design and Implementation of An Improved Camera Mounted Remote Controlled Quadcopter

Aeronautics and other studies on the science of aircraft have advanced to the point where Unmanned Aerial Vehicles (UAVs) or drones are now being extensively designed. However, such aircrafts are large and not maneuverable in tight spots especially fixed wing aircraft, therefore, the design of multi-rotors are now being considered. It is inherent that small unmanned aircraft with optimal maneuverability and the ability to carry small payloads such as cameras should be designed for operations in places where a full-size aircraft are either too big or too expensive to be deployed. One of the types of Small Unmanned Aerial Vehicle (SUAV) is a Quadcopter, which can be implemented in different applications. Quadcopters are rapidly gaining interest due to their stability, low cost in building, handling capabilities and agility. Uses of such craft include aerial photography or surveillance, ground surveillance and mapping, package delivery, for rescue operations and as a research tool into ways of designing more advanced aircraft. This study therefore designed and implemented an improved industry-grade Small Unmanned Aerial Vehicle (SUAV) multi-rotor Quadcopter. Quadcopter structure model, basic components, hovering stability, dimensions, and description of basic principles of quadcopter were discussed. The study showed that SUAVs are useful across a broad range of applications. Keywords: Unmanned Aerial Vehicles, Aeronautics, Aircraft, Multi-rotors, Quadcopter, Surveillance, Aerial Photography, Small Unmanned Aerial Vehicle. DOI: 10.7176/CEIS/11-2-08 Publication date: April 30th 202

Application of Shunt Capacitor Compensation Technique on Electrical Power Distribution System: A Review

The performance and quality of service of the electrical power distribution system are one of the utmost issues bothering the power system operator. This matter is important in order to fulfil load demands, which increase significantly. The progress in enhancing the efficiency of the system is plagued by high real power losses and poor voltage profile especially in the conventional radial distribution system. Hence, researchers have adopted a variety of different approaches to solve these problems in electrical power distribution system. One of the techniques employed is installation of shunt capacitor (using Capacitor Switching Compensation). Studies have shown that when Capacitor Switching Compensation is incorporated into the distribution system, the system losses can be minimized by reducing the reactive power component. Capacitor Switching Compensation is a widely used technique in electric power distribution system to improve the power system performance. This study therefore, reviews some of the applications of Capacitor Switching Compensation in electrical distribution system based on voltage and reactive power control. Thus, the usage of Capacitor Switching Compensation help to control the reactive power on a distribution system, maintenance of the flat voltage profile, improve the system efficiency and the stability of the electrical power distribution system. Keywords:Electrical Power Distribution System, Reactive Power, Voltage Control, Capacitor Switching Compensation, System Losses, Load Demand. DOI: 10.7176/ISDE/12-5-03 Publication date:August 31st 202

Reliability Assessment of Power Distribution System Using Relative Customer Average Interruptions Duration Index Model

Reliability assessment of power distribution system deals with the adequacy of overall system supply and indicates the system behaviour and response at the customer end. In order to attain satisfactory degree of reliability in electric power distribution system, there is the need to develop a model that will improve the three major system reliability indices via Systems Average Interruptions Duration Index (SAIDI), Systems Average Interruptions Frequency Index (SAIFI) and Customer Average Interruptions Duration Index (CAIDI). This research paper therefore, developed a Relative CAIDI model for assessment of reliability indices of electrical power distribution system. In this paper, ten (10) years outage data from selected distribution feeders of Ibadan, Ikeja and Port-Harcourt distribution systems were obtained and analyzed using curve fitting tools in MATLAB. The system reliability indices served as input parameters for the development of Relative CAIDI model. The best curves that fitted the relationship between the Relative CAIDI and the number of feeders were obtained using Lagrange polynomial functions, Newton polynomial functions and Chebyshev polynomial functions as performance evaluation metrics. The results showed that Ibadan, Ikeja and Port-Harcourt distribution systems had Relative CAIDI of 0.718, 0.3976 and 0.5279 respectively and the validation results produced by Largrange polynomial function, Newton polynomial function and Chebyshev polynomial function were 0.717, 0.3979 and 0.5278 respectively.  The model developed is a polynomial of order six which depends majorly on the power requirements of the distribution systems. The developed model can be used for effective reliability assessment of electrical power distribution systems as well as forming a base-line information for system planning and maintenance strategies. Keywords: Reliability Indices, SAIDI, SAIFI, CAIDI, Chebyshev Polynomial Function, Lagrange Polynomial Function, Newton Polynomial Function. DOI: 10.7176/NCS/14-01 Publication date:August 31st 202