Insights into Digital Twin Based on Finite Element Simulation of a Large Hydro Generator

Abstract

This paper presents an insight into a digital twin concept based on finite element simulator of a large hydro generator. The digital twin is created using finite element technique to design, study, monitor and to perform tests including analysis of a large hydro generator operating in normal and both margins of the capability curve. A three-phase synchronous machine generator of 310MVA, 56 poles, 13.8kV was considered for the case study. The created model was validated according to the IEEE standard 115. The presented and discussed results are related to the air gap magnetic flux density distribution and damper bar currents for operation in both under and over excitation modes.