Modeling and dynamic simulation of 300MW variable speed pumped storage unit based on BPA

Different from constant-speed pumped-storage hydropower plant (CSPSH), variable-speed pumped-storage hydropower (VSPSH) have obvious advantages in frequency regulation and voltage regulation as well as efficiency improvement. This paper introduces the mathematical model of 300MW VSPSH and the control model. A three machine nine node system model with VSPSH is established in BPA. During the experiment, through the combination of different working conditions such as turbine and pump, frequency regulation and voltage regulation of VSPSH, the simulation results conform to its operating characteristics, show the dynamic response under grid disturbance, which lays a solid foundation for in-depth research.