Study on active power balance in Inner Mongolia power grid with large-scale wind power

Wind power variation affects active power balance in power system and challenges power grid operation. This paper studies two problems of active power balance in different time scales: peak regulation and frequency control in Inner Mongolia power grid with large-scale wind power, and discusses general measures to increase ability of wind power integration and to settle active power balance problem with large-scale wind power. In this paper, Inner Mongolia power grid´s installed generator capacity and structure, load character and wind power variations are introduced, typical operation patterns according to load levels and generation limits in different seasons are established, and then the ability of peak regulation and frequency control are assessed. Finally, the measures to increase the operations flexibility of Inner Mongolia power grid with large-scale wind power and to solve the active power balance problem in system range are discussed.