US 11,671,040 B2
Turbomachine with an electric machine assembly and method for operation
Justin Paul Smith, Montgomery, OH (US); Kurt David Murrow, Liberty Township, OH (US); Darek Tomasz Zatorski, Fort Wright, KY (US); and Patrick Michael Marrinan, Mason, OH (US)
Assigned to General Electric Company, Schenectady, NY (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Apr. 28, 2021, as Appl. No. 17/242,386.
Application 17/242,386 is a continuation of application No. 16/838,165, filed on Apr. 2, 2020, granted, now 10,998,837.
Application 16/838,165 is a continuation of application No. 15/823,952, filed on Nov. 28, 2017, granted, now 10,644,630, issued on May 5, 2020.
Prior Publication US 2021/0249978 A1, Aug. 12, 2021
Int. Cl. H02P 9/04 (2006.01); F02C 7/36 (2006.01); F02C 9/32 (2006.01); H02P 9/00 (2006.01); F01D 15/10 (2006.01); F01D 19/00 (2006.01)
CPC H02P 9/04 (2013.01) [F01D 15/10 (2013.01); F01D 19/00 (2013.01); F02C 7/36 (2013.01); F02C 9/32 (2013.01); H02P 9/008 (2013.01); F05D 2220/32 (2013.01); F05D 2220/76 (2013.01); F05D 2270/023 (2013.01); F05D 2270/101 (2013.01); F05D 2270/20 (2013.01); F05D 2270/303 (2013.01); F05D 2270/304 (2013.01); F05D 2270/3013 (2013.01); F05D 2270/62 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method for operating a turbomachine, the method comprising:
rotating a first rotatable component at a first speed, wherein the first rotatable component comprises a first compressor, and wherein the first rotatable component is operably coupled to a first electric machine having a first rotor assembly and a first stator assembly, the first stator assembly constituting a portion of a fixed stator assembly;
rotating a second rotatable component at a second speed, wherein the second rotatable component comprises a second compressor, and wherein the second rotatable component is operably coupled to a second electric machine having a second rotor assembly and a second stator assembly, the second stator assembly constituting another portion of the fixed stator assembly, the fixed stator assembly disposed between the first rotatable rotor assembly and the second rotatable rotor assembly; and
transferring energy generated from at least one of the first electric machine or the second electric machine to adjust the first speed or the second speed based on a compressor map determinative of a desired operating condition relative to one or more of a stall margin, a surge margin, an operating pressure ratio, or an operating speed.