Prof. Wagdy Mohamed Mansour :: Publications:

Due to the benefits of wind power in the ecological enhancement, energy cost reduction and energy security, the use of wind power is spreading. In this paper, the impact of wind power on the dynamic stability of weakly interconnected power systems is considered. Two situations are covered. The first one is the replacement of conventional power by wind power while the second one includes the addition of wind power to an existing conventional power generation system. The considered system is composed of two weakly interconnected areas. The objectives of wind power are to reduce the dependency between the two areas and the reduction of conventional fuel use while keeping acceptable damping levels. Two popular wind energy technologies are considered which are fixed speed SCIGs and the variable speed DFIGs. The results show that the wind power causes reduction in the damping of power system oscillations. Therefore, power oscillation damping controllers (POD) are integrated with the available SVCs. These POD controllers are designed for improving the system dynamic stability to an acceptable level. The POD design is based on the frequency response method. The modal analysis and the time-domain simulation are used for validating the POD efficient design.