Effects of Large-Scale Wind Integration on China Northwest Regional Power System and Future Solutions

摘要

The paper introduces the current planning integration situation of the wind power in Northwest Grid of China. The large-scale wind power integration, characterized by concentrated and high voltage level interconnection, makes appreciable effects on power system in stability control, frequency control, load tracking and voltage control. In this situation, the paper studies new requirements of power generation scheduling, dispatch, operation management, power market modelling, grid-connecting operation management, ancillary service management and so on. Finally, the paper introduces the solutions and strategies such as to strengthen the 750 kV grid construction, increase power export of the region, develop a Wind EMS, improve wind power forecasting, explore combined dispatching of wind power and other power plants, and introduce new power market mechanisms.