1
Gregory I Rozman, Jacek F Gieras, Steven J Moss: Systems for wound field synchronous machines with zero speed rotor position detection during start for motoring and improved transient response for generation. Hamilton Sundstrand Corporation, Edwards Wildman Palmer, Scott D Wofsy, Joshua L Jones, January 6, 2015: US08928293 (8 worldwide citation)

An electrical machine includes a stator having a main armature winding, an exciter field winding, and a transformer primary winding. A rotor is operatively connected to rotate relative to the stator, wherein the rotor includes an exciter armature winding operatively connected to the exciter armature ...


2
Gregory I Rozman, Jacek F Gieras, Steven J Moss: Direct current generating, management and distribution system. Hamilton Sundstrand Corporation, Cantor Colburn, April 15, 2014: US08699251 (8 worldwide citation)

A direct current generating, management and distribution system includes a first armature winding, a first active rectifier having a first controller and coupled to the first armature winding, a first direct current bus coupled to the first active rectifier, a second armature winding, a second activ ...


3
Gregory I Rozman, Steven J Moss: Electric power generating and distribution system comprising a decoupling filter and a solid state power controller. Hamilton Sundstrand Corporation, Cantor Colburn, September 17, 2013: US08536730 (7 worldwide citation)

A method for operating an electric power generating system (EPGS) includes, in one aspect, detecting current limiting conditions in the SSPC, wherein the SSPC includes a main solid state switch in series with an output filter that includes a first solid state switch, and wherein a decoupling filter ...


4
Gregory I Rozman, Steven J Moss: Solid state power controller for high voltage direct current systems. Hamilton Sundstrand Corporation, Cantor Colburn, October 8, 2013: US08553373 (6 worldwide citation)

A solid state power controller system can include a direct current load, a solid state power controller apparatus including an alternating current sensor coupled to the direct current load, a direct current sensor coupled to the direct current load, a voltage sensor coupled to the direct current loa ...


5
Gregory I Rozman, Steven J Moss: Electric power generating system with boost converter/synchronous active filter. Hamilton Sundstrand Corporation, Cantor Colburn, February 19, 2013: US08378641 (6 worldwide citation)

A method of startup of an electric start electrical power generating system (EPGS) is provided. The EPGS includes a generator configured to power a direct current (DC) load via a DC bus. The method includes: disconnecting the DC load from the DC bus; connecting a battery to a boost converter, the bo ...


6
Gregory I Rozman, Jacek F Gieras, Steven J Moss: Generator architecture with PMG exciter and main field rotating power converter. Hamilton Sundstrand Corporation, Kinney & Lange P A, April 26, 2016: US09325229 (5 worldwide citation)

A generator includes a stationary portion and a rotating portion. The stationary portion includes a permanent magnet and a main armature winding. The rotating portion includes a main field winding and a main field rotating power converter that regulates current through the main field winding.


7
Gregory I Rozman, Steven J Moss: Multi-functional solid state power controller. Hamilton Sundstrand Corporation, Cantor Colburn, January 7, 2014: US08625243 (5 worldwide citation)

A solid state power controller apparatus can include an on/off-current limit controller, a pre-charge controller coupled to the on/off-current limit controller, an active damper controller coupled to the on/off-current limit controller and a main switch coupled to and responsive to on/off and protec ...


8
Gregory I Rozman, Steven J Moss: Method of controlling rotating main field converter. Hamilton Sunstrand Corporation, Cantor Colburn, March 10, 2015: US08975876 (5 worldwide citation)

A generator system includes a generator having a stationary portion and a rotating portion. An exciter field winding and a main armature winding are disposed on the stationary portion. An exciter armature winding and a main field winding are disposed on the rotating portion. A frequency demodulator ...


9
Gregory I Rozman, Jacek F Gieras, Steven J Moss: Variable speed constant frequency system with generator and rotating power converter. Hamilton Sundstrand Corporation, Cantor Colburn, September 16, 2014: US08836293 (5 worldwide citation)

An electric power generating system includes a brushless wound field synchronous generator with n-number of power generating channels and n-number of bidirectional switches alternatively controlled to provide ac power at the output. Each power generating channel includes a control rotating transform ...


10
Ricardo Ardila, Dean L Farnham, Nick Feng, Robert Scott Ferguson, Patrick Gerald Krohn, Steven J Moss: Method for providing terrain alerts and display utilizing temperature compensated and GPS altitude data. Universal Avionics Systems Corporation, Quarles & Brady, George E Haas, October 6, 2009: US07599766 (5 worldwide citation)

A method of accounting for errors in the altitude reporting of a terrain alert and warning system (TAWS) is disclosed wherein errors due to non-standard atmospheric conditions, incorrect altimeter setting and air data computer (ADC) sensor error are detected and corrected for by compensating ADC alt ...