Title :
Determination of dynamic parameters of large hydro-generators by finite-element simulation of three-phase sudden short-circuit tests
Author_Institution :
Generator Eng., GE Hydro, Peterborough, Ont., Canada
Abstract :
A salient-pole synchronous machine model based on a time-stepping finite-element (FE) formulation implementing rotor motion and external circuit elements is presented. It is applied to the numerical simulation of three-phase sudden short-circuit tests of large hydro-generators to determine the dependence of dynamic reactances and time constants on prefault voltage levels and saturation
Keywords :
electric reactance; finite element analysis; hydroelectric generators; rotors; short-circuit currents; simulation; synchronous generators; dynamic parameters determination; dynamic reactances; external circuit elements; finite-element simulation; hydro-generators; prefault voltage levels; rotor motion; saturation; three-phase sudden short-circuit tests; time constants; Circuit simulation; Circuit testing; Conducting materials; Conductors; Equations; Finite element methods; Iron; Magnetic analysis; Rotors; Voltage;
Conference_Titel :
Electric Machines and Drives Conference Record, 1997. IEEE International
Conference_Location :
Milwaukee, WI
Print_ISBN :
0-7803-3946-0
DOI :
10.1109/IEMDC.1997.604162
