Title :
Synchronous Machine Parameters Estimation Considering the Field Flux Leakage Saturation
Author :
Xinli, Zhang ; Yingli, Luo ; Liang, Meng
Author_Institution :
Dept. of Electr. Eng., North China Electr. Power Univ., Beijing
Abstract :
The magnetic field distributions of a 300 MW generator under various operating conditions are obtained based on finite element method. Through analysis we find that the exciting leakage field is highly saturated when the machine is heavy loaded. Based on these study, new saturable parameters and model are developed. The small and large disturbance data are simulated by a time-stepping finite element model of a synchronous generator connected to infinite bus via a transformer with delta-star wiring. The data provided by the simulation are used to estimate the linear and saturable parameters. Since the disturbance data is not easily obtained online especially for heavy loaded conditions, FEM based simulation offers a new approach to solve this problem
Keywords :
finite element analysis; magnetic leakage; parameter estimation; power transformers; synchronous generators; FEM based simulation; delta-star wiring; disturbance data; field flux leakage saturation; finite element method; magnetic field distributions; synchronous generator; synchronous machine parameters estimation; time-stepping finite element model; transformers; Circuit faults; Finite element methods; Magnetic analysis; Magnetic fields; Parameter estimation; Power generation; Power system modeling; Power system simulation; Synchronous generators; Synchronous machines;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1633282
