The work presented in this paper proposes the design of single Inset-fed antenna and antennas array with corporate feed network based on accurate modified transmission line model. The model developed is simple, accurate and takes into account all the characteristics of the antenna array and their feed system. To test this proposed model, the results obtained are compared with those obtained by the moment’s method (Agilent Momentum). The paper confirms the validity of the developed model by presenting several simulation results. The results obtained are then exposed and discussed.

This paper presents the solution of three phases power flow in unbalanced electrical network. The main objective of the three flow analysis of power is to calculate the active and reactive powers flowing in each phase with the magnitude and the angle of the voltage at each bus of the system for the specific loading conditions. In this work, the negative- and zero-sequence components are presented using nodal voltage equations. The three phase power flow is formulated and solved by using Gauss-Seidel and Newton-Raphson methods and has been tested using IEEE 5 bus system. The wind power in this work represented by wind electric system which made up of a wind turbine mounted on a tower to provide better access to stronger winds, after that, we inject wind power generator to show the effect of the wind energy in the power flow for unbalanced electrical power system. The solar unit is considered in this work by adding two energy types in one bus.

This paper proposes a robust sliding mode controller based on an indirect vector control of Dual stator Induction Generator (DSIG) for a variable speed wind integrated into the network. The main goal of this paper is to improve and to optimize the performances of power system using a wind energy conversion system based on DSIG. In first step, The modeling of variable-speed wind energy conversion system is presented. In second step, a field-oriented control of a DSIG is proposed. In the last step, in order to ensure an optimum operating point and a Maximum Power Point Track (MPPT) giving online a maximum production of electric power for different wind speeds, a sliding mode controller have been suggested . The efficiency and validity of the proposed control strategy are illustrated by simulation results.