Status quo of AGC in Zhejiang Power Grid and solutions to problems concerned

This paper introduces the basic system configuration of automatic generation control (AGC) of both master and slave station in Zhejiang power system and the units having AGC function in Zhejiang Province. It summarizes the problems encountered during AGC operation from both power grid and plants, which involve technologies, coordination between grid and plant, grid operation mode and load characteristics etc. It puts forward solutions for the problems and methods and suggestions for making full use of AGC as viewed from management and technology, including enhancing monitoring and evaluation on units to be integrated into the grid, raising accuracy in ultra-short-term load forecasting, realizing combined AGC adjustment of hydropower plants with thermal power plants, setting AGC period reasonably, optimizing control system at AGC master station, and etc.