Reliability assessment of wind integration in operating and planning of generation systems

The integration of large amount of wind generation will have significant impact on both long-term planning and real-time operation of power systems. The intermittent and energy-limited characteristics are important factors in wind generation integration modeling. In terms of probabilistic reliability, new wind generation interconnection cannot meet the adequacy requirement by itself as load increases. Addition of conventional capacity is needed to compensate the intermittency of wind generation. The same is also true in real time operation. Scheduling wind generation in real-time can result in the reduction of system security; hence the requirement of operating reserve may increase. Reliability assessment based on probabilistic method is used in this paper to evaluate the impacts of wind integration from different aspects of planning and operation of a power system. Different reliability models of wind generation are presented. The IEEE Reliability Test System (IEEE-RTS) system is used to demonstrate the developed wind modeling.