Effect of hourly wind trends on the peak load-carrying capability of wind-integrated power systems

Wind power is gaining serious consideration as an important source of electric power generation. The output power of a wind turbine generator is, however, dependent on the wind speed, which is uncertain, intermittent, and variable. It is therefore necessary to develop suitable wind power integration models to assess the load-carrying capability benefits of added wind power. The present paper discusses the concept of short-term wind speed probability distributions and unit commitment risk, and examines the peak load-carrying capability and increase in peak load-carrying capability due to added wind power. The effects of hourly changes in wind speed on the estimation of these benefits are illustrated by evaluating the operating situations at two different times of the day in two different seasons of the year.