1
Travis B Bashaw, Robert T Carpenter, David A Torrey: Inverter control methodology for distributed generation sources connected to a utility grid. Advanced Energy Conversion, John A Merecki, Hoffman Warnick & D Alessandro, July 24, 2007: US07248946 (170 worldwide citation)

The present invention provides an improved control methodology for maximum power point tracking (MPPT), anti-islanding, and output current regulation for distributed generation sources connected to a utility grid. The control includes enhancements for MPPT and regulating the inverter output-current ...


2
David A Torrey, Edward C Kirchner: Fluid pump/generator with integrated motor and related stator and rotor and method of pumping fluid. Advanced Energy Conversion, Hoffman Warnick & D Alessandro, April 4, 2006: US07021905 (58 worldwide citation)

A fluid pump integrated with a motor, a fluid pump/generator device, a rotor for a fluid pump/generator device, a stator for a fluid pump/generator device and a method for pumping fluid are disclosed. Specifically, a fluid pump includes a motor rotor having a plurality of magnetic vanes that electro ...


3
Robert C Degeneff, Friedrich K Schaeffer, Robert H Frazer, David A Torrey, Osman Demirci: Tap changing system having discrete cycle modulation and fault rotation for coupling to an inductive device. Utility Systems Technologies, Heslin & Rothenberg P C, February 18, 1997: US05604423 (17 worldwide citation)

A tap changing system for operation with a transformer and featuring a special group of gate-controlled electronic devices that operate as a circuit breaker and recloser such that, after half-cycle of short-circuit current, said special group is transferred to the OFF-state, whereby the tap changer ...


4
Martin Kaplan, James M Kokernak, Erkan Meese, Yilmaz Sozer, David A Torrey: Method for operating a switched reluctance electrical generator using data mapping. Dana Corporation, MacMillian Sobanski & Todd, November 16, 2004: US06819008 (10 worldwide citation)

A method for operating a switched reluctance electrical generator in a manner that is highly efficient involves initially performing a mapping technique to obtain data relating to all of the possible operating conditions of the generator system that generate the desired output power. This mapping te ...


5
David A Torrey, Yilmaz Sozer: Closed loop control of excitation parameters for high speed switched-reluctance generators. Dana Corporation, Berenato White & Stavish, July 4, 2006: US07071659 (9 worldwide citation)

The method is directed to controlling a switched reluctance generator operating in a high speed single pulse mode. The turn-off angle is selected according to an analytic fit optimal efficiency curve and the turn-on angle is used as the variable parameter to control power output of the switched relu ...


6
David A Torrey, Yilmaz Sozer: Closed loop control of excitation parameters for switch-reluctance motors. Advanced Energy Conversion, Michael F Hoffman, Hoffman Warnick & D Alessandro, March 8, 2005: US06864658 (9 worldwide citation)

A system and method for controlling the turn-on and turn-off angles of a switch reluctance motor. A control system is provided that comprises: a turn-on controller that includes a first component for controlling a turn-on angle during low speed operations and a second component for controlling the t ...


7
Yilmaz Sozer, David A Torrey, Erkan Mese: Control method for switched reluctance motor. Dana Corporation, Liniak Berenato & White, September 7, 2004: US06788021 (8 worldwide citation)

A control algorithm provides automatic control of the turn-on angle used to excite the switched-reluctance motor (SRM). The control algorithm determines the turn-on angle that supports the most efficient operation of the motor drive system, and consists of two pieces. The first piece of the control ...


8
David A Torrey: Single-phase active power filter for multiple nonlinear loads and method therefor. Rensselaer Polytechnic Institute, Notaro & Michalos, January 9, 1996: US05483148 (5 worldwide citation)

An active filter and method for stabilizing a single-phase ac line to which multiple nonlinear loads are connected, comprises two pairs of switches connected in two switching loops across a capacitor. One loop is connected to one leg of the line through an inductor and the other loop is connected to ...


9
David A Torrey, Edward C Kirchner: Fluid pump/generator with integrated motor and related stator and rotor and method of pumping fluid. Hoffman Warnick & D Alessandro, December 30, 2004: US20040265153-A1

A fluid pump integrated with a motor, a fluid pump/generator device, a rotor for a fluid pump/generator device, a stator for a fluid pump/generator device and a method for pumping fluid are disclosed. Specifically, a fluid pump includes a motor rotor having a plurality of magnetic vanes that electro ...


10
Yilmaz Sozer, David A Torrey, Erkan Mese: Control method for switched reluctance motor. Liniak Berenato Longacre & White, October 16, 2003: US20030193309-A1

A control algorithm provides automatic control of the turn-on angle used to excite the switched-reluctance motor (SRM). The control algorithm determines the turn-on angle that supports the most efficient operation of the motor drive system, and consists of two pieces. The first piece of the control ...