Simulation of the start-up of a hydro power plant for the emergency power supply of a nuclear power station

A hydro power plant and a nuclear power plant's auxiliaries are modeled usi ng the Electromagnetic Transients Program (EMTP), The computer models allow for the Simulation of a hydro generator start-up and the following energiz ation of a nuclear power station's auxiliary motors under off-nominal volta ge and frequency conditions. The paper describes the derivation of generato r, turbine, exciter, and induction motor models, and their individual valid ation through field measurements. The complete power system model is verifi ed by comparing simulation results to measurements, as obtained during an E ngineered Safeguards Functions (ESF) test of the emergency power system of Oconee nuclear power plant.