1
Thomas A Wilkins, Nagwa M Elkachouty, Reigh A Walling, James P Lyons, Robert W Delmerico, Sumit Bose, Nicholas Wright Miller: Continuous reactive power support for wind turbine generators. General Electric Company, Blakely Sokoloff Taylor & Zafman, August 2, 2005: US06924565 (60 worldwide citation)

Real and reactive power control for wind turbine generator systems. The technique described herein provides the potential to utilize the total capacity of a wind turbine generator system (e.g., a wind farm) to provide dynamic VAR (reactive power support). The VAR support provided by individual wind ...


2
Einar V Larsen, Robert W Delmerico: Battery energy storage power conditioning system. General Electric Company, Enrique J Mora, August 25, 1998: US05798633 (59 worldwide citation)

A method and apparatus for controlling a battery energy storage system of the type in which an inverter is coupled to convert direct current power from a DC source to a controlled frequency AC power suitable for supplementing utility power or for replacing utility power includes a control mechanism ...


3
Haiqing Weng, Robert A Seymour, John D D Atre, Allen M Ritter, Xiaoming Yuan, Renchang Dai, Robert W Delmerico: Method, apparatus and computer program product for injecting current. General Electric Company, Cantor Colburn, September 9, 2008: US07423412 (49 worldwide citation)

Method and apparatus that provide a response to the negative sequence current demands during a disturbance of the grid system connected to power-generating equipment, such as a wind turbine system, provide for tracking components in the grid signal, orienting at least a portion of the signal, and in ...


4
Mark E Cardinal, Robert W Delmerico, Nicholas W Miller, Reigh A Walling: Windfarm collector system loss optimization. General Electric Company, Ernest G Cusick, Frank A Landgraff, August 9, 2011: US07994658 (7 worldwide citation)

A windfarm system is provided that is optimized for minimizing electrical loss. The windfarm system includes a plurality of wind turbine generators and a collector system including a conductor or network of conductors. The collector system also including a plurality of transformers with one or more ...


5
Alfredo S Achilles, Parag Vyas, Robert W Delmerico: Wide area transmission control of windfarms. General Electric Company, Dority & Manning P A, November 15, 2011: US08058753 (6 worldwide citation)

A means for improving the dynamic and voltage stability of utility transmission systems is provided by the coordinated control of windfarms. Electrical measurements of the system, which may include synchronized phasors, are supplied to one or more windfarm controllers, which in turn perform a regula ...


6
Haiqing Weng, John D D Atre, Robert A Seymour, Allen M Ritter, Xiaoming Yuan, Renchang Dai, Robert W Delmerico: Apparatus, method and computer program product for tracking information in an electric grid. General Electric Company, Cantor Colburn, November 25, 2008: US07456695 (4 worldwide citation)

An apparatus for rapidly tracking fundamental frequency information in the signal of an electric grid is a cross-coupled phase-lock loop filter (CCPLL) that includes the use of a phase-lock-loop (PLL) apparatus having a plurality individual filters, wherein an input for a first filter in the plurali ...


7
Haiqing Weng, John D D Atre, Robert A Seymour, Allen M Ritter, Xiaoming Yuan, Renchang Dai, Robert W Delmerico: Apparatus, method and computer program product for tracking information in an electric grid. General Electric Company, Cantor Colburn, May 10, 2011: US07940131 (3 worldwide citation)

An apparatus for rapidly tracking fundamental frequency information in the signal of an electric grid is a cross-coupled phase-lock loop filter (CCPLL) that includes the use of a phase-lock-loop (PLL) apparatus having a plurality individual filters, wherein an input for a first filter in the plurali ...


8
Robert W Delmerico, Paul M Espelage: Cross tie for induction motor drive. General Electric Company, Arnold E Renner, April 18, 1989: US04823068 (3 worldwide citation)

An induction motor drive having source and load side converters with individual control channels for the respective converters includes a cross tie arrangement between the channels for increased system stability.


9
Thomas A Wilkins, Nagwa M Elkachouty, Reigh A Walling, James P Lyons, Robert W Delmerico, Sumit Bose, Nicholas Wright Miller: Continuous reactive power support for wind turbine generators. Blakely Sokoloff Taylor & Zafman, February 24, 2005: US20050040655-A1

Real and reactive power control for wind turbine generator systems. The technique described herein provides the potential to utilize the total capacity of a wind turbine generator system (e.g., a wind farm) to provide dynamic VAR (reactive power support). The VAR support provided by individual wind ...


10
Haiqing Weng, Robert A Seymour, John D D Atre, Allen M Ritter, Xiaoming Yuan, Renchang Dai, Robert W Delmerico: Method, apparatus and computer program product for injection current. Cantor Colburn, August 2, 2007: US20070177314-A1

Method and apparatus that provide a response to the negative sequence current demands during a disturbance of the grid system connected to power-generating equipment, such as a wind turbine system, provide for tracking components in the grid signal, orienting at least a portion of the signal, and in ...



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