Dimensioning and design of a MV distribution power system for the new city of bejaia “Oued Ghir”

Abstract

The distribution power system is the closest network to the customers and it is the basic subsystem of the power system. Generation and transmission subsys-tems are designed to fit the dimension of the distribution system. Therefore, the distribution network should be designed economically to satisfy the needs of the customers by ensuring the quality and continuity of supply (reliability). To achieve this goal, a good long-term planning should be carried out during the design. In this project, the data of the new city of Bejaia "Ighzer Ouzarif" which is under realization have been used to dimension and design an optimal distribution power system for it. The design has been performed by following the method of design and by using some international standards, approximations and optimization algorithms to minimize the cost of the project. After finishing the design, the system has been evaluated by performing load flow analysis and short circuit analysis under the most unfavorable cases. Then, it is simulated using the software ETAP for designing and testing power systems.The obtained results show that the designed system is operating safely under the worst cases. This means that the objective of the project is achieved.