Title :
Impact of system faults on turbine-generator shafts torsional dynamics in AC/DC power system
Author :
Liu, K.Z. ; Shu, H.C. ; Liu, Z.J. ; Yu, J.L.
Author_Institution :
Dept. of Electr. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
The impact of different types of line faults on the turbine-generator (T-G) shaft torsional dynamics in AC/DC power system, including three-phase to ground fault, one-phase to ground fault on sending end bus and receiving end bus are analyzed by PSCAD/EMTDC time-domain simulation. The simulation results shows that three-phase to ground fault on the sending end bus will cause shock electromagnetic torque vibration. The LP2 to GEN shaft torsional torque of T-G is most severe and special attention should be paid to.
Keywords :
fault diagnosis; matrix algebra; power systems; shafts; turbogenerators; AC-DC power system; PSCAD-EMTDC time-domain simulation; ground fault; line faults; receiving end bus; sending end bus; shock electromagnetic torque vibration; three-phase fault; turbine-generator shafts torsional dynamics; Analytical models; EMTDC; PSCAD; Power system analysis computing; Power system dynamics; Power system faults; Power system simulation; Shafts; Time domain analysis; Torque; AC/DC Power System; Electromagnetic Torque; Shaft Torsional Torque; System Fault;
Conference_Titel :
Sustainable Power Generation and Supply, 2009. SUPERGEN '09. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-4934-7
DOI :
10.1109/SUPERGEN.2009.5348278
