Modeling and Simulation of the Startup of a Pumped Storage Power Plant Unit

This paper presents the modeling and simulation study of the startup of a 250 MVA synchronous machine driven by a static frequency convertor (SFC) at a Pumped Storage Power Plant by utilizing EMTP-RV. The new synchronous machine (SM) module of EMTP-RV enables the simulation of the machine from standstill to rated speed, and therefore, makes it possible utilizing EMTP-RV for the electrical starting of pumped storage units. For the validation of the new SM module, the startup of an existing pumped storage power plant is simulated for the period from standstill to line operation including the synchronization of the machine to the grid. The simulation results and the field measurements demonstrate that the new SM module represents the machine behavior in a satisfying manner.