ROBERT M NELSON, MD
Medical Practice at Bruce B Downs Blvd, Tampa, FL

5469044, Nov 21, 1995

Jan 5, 1995

8/368947

Laszlo Gyugyi - Penn Hills Township PA
Robert J. Nelson - Orlando FL

Westinghouse Electric Corporation - Pittsburgh PA

G05F 170, H02M 112, H02J 102

323207

A bias voltage vectorially added to the controllable voltage injected in series with the line voltage of a transmission line reduces the required MVA rating for a unified power flow controller (UPFC) in applications where the power in the transmission line only flows in a single direction, or where the range of the transmission angle is otherwise unequal about zero.

6798079, Sep 28, 2004

Jul 11, 2002

10/193399

Robert J. Nelson - Orlando FL
Kim M. McCreight - Oviedo FL
Bobby A. Warren - Chuluota FL
James F. Lau - Orlando FL

Siemens Westinghouse Power Corporation - Orlando FL

F01D 1510

290 2, 310 58

A turbine power generator includes a housing a shaft a turbine to drive the shaft, a shaft-driven generator rotor and generator stator within the housing and surrounding the rotor. A main cooling gas blower includes at least one blade driven by the shaft for causing a main flow of cooling gas to cool the rotor and/or stator A supplemental cooling gas blower is connected in parallel with the main cooling gas blower for causing a supplemental flow of cooling gas through the housing in addition to the main flow of cooling gas to cool the rotor and/or stator The supplemental cooling gas blower may include an electric motor and at least one blade driven thereby. A controller may be connected to the electric motor to permit selective operation of the supplemental cooling gas blower.

2004021, Oct 28, 2004

Apr 25, 2003

10/423529

Robert Nelson - Orlando FL, US

Siemens Westinghouse Power Corporation

H02P009/00

322/045000

A power system () comprising an electrical generator () connected to a transmission/distribution system () via a circuit breaker (). The circuit breaker () further comprises a shorting element () and an impedance () in parallel thereto. The impedance () is closed immediately prior to closure of the shorting element (), thereby inserting the impedance () into the circuit to reduce the switching transients caused by an out-of-phase condition between the current generated by the electrical generator () and the current carried by the transmission/distribution system ().

2013034, Dec 26, 2013

Jun 20, 2012

13/527690

Robert J. Nelson - Orlando FL, US

H02M 5/16

363171

A power generation and transmission system, including: a wind turbine having an electrical generator () producing AC electrical power at a production frequency; a converter connected to the electrical generator () and configured to convert the AC electrical power to a transmission frequency below a grid frequency; an insulated transmission cable () connected to the converter and disposed at least partly submarine or subterranean; and a synchronous frequency converter () remote from the wind turbine and configured to receive the AC electrical power from the insulated transmission cable () and to convert it to the grid frequency for supply to a grid.

8301311, Oct 30, 2012

Jul 6, 2009

12/497772

Robert J. Nelson - Orlando FL, US

Siemens Aktiengesellschaft - Munich

H02P 9/04, G05D 17/00

700287, 290 44, 290 55

A wind farm () may include a plurality of variable speed wind turbines (). A centralized controller () may be configured to selectively adjust a respective electrical output power from each of the wind turbines. The controller may include a monitor () configured to monitor a correlation between a deviation from a grid frequency and a wind power change. The controller may be configured to adjust a response of the electrical output power based on the monitored correlation. The electrical output power response may be configured to meet a grid frequency regulation notwithstanding of random occurrences of wind power changes.

2013011, May 16, 2013

Nov 14, 2011

13/295370

Robert J. Nelson - Orlando FL, US

G05F 1/70

323210, 323205

An apparatus for compensating a power system transmission line (). The apparatus comprises an autotransformer () disposed in series with the transmission line (). An autotransformer series winding (A) extends from an input terminal () to a neutral terminal () and a common winding (B) extends from an output terminal () to the neutral terminal (). A compensating device () is connected between the neutral terminal () and ground. Although connected in shunt with the transmission line (), the compensating device () operates as a series-connected compensating device relative to the transmission line (). The autotransformer () can be connected in a buck or a boost configuration with a fixed or moveable winding tap (). Also, two autotransformers () can be connected in a back-to-back configuration with the compensating device () connected to either autotransformer ().