Title :
Air cooled turbogenerators superseding hydrogen cooling domain
Abstract :
Air cooled turbogenerators have been keeping pace with the evolution in gas turbine unit rating. The latest developments are described which have led to a unit rating of 500 MVA, so far exclusively the domain of hydrogen-cooled turbogenerators. The advantages of both technologies are compared and listed in a cost comparison, resulting in a considerable cost benefit for air-cooling. It is shown that there is still potential for further increase in unit rating of air-cooled turbogenerators
Keywords :
cooling; turbogenerators; air cooled turbogenerators; air-cooling; cost benefit; gas turbine unit rating; hydrogen-cooled turbogenerators; Cooling; Costs; Hydraulic turbines; Induction generators; Insulation; Power generation; Rotors; Stator cores; Stator windings; Turbogenerators;
Conference_Titel :
Electric Machines and Drives Conference, 2001. IEMDC 2001. IEEE International
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-7091-0
DOI :
10.1109/IEMDC.2001.939367