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
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 ...


4
Erkan Mese, David Allan Torrey: Method and apparatus for space vector modulation in multi-level inverters. Advanced Energy Conversion, July 7, 2009: US07558089 (4 worldwide citation)

An apparatus for space vector modulation of a multi-level inverter, the apparatus comprising: a triangle generator for finding a modulation triangle enclosing a reference voltage vector, the modulation triangle comprising vertex vectors; a duty ratio calculator for determining duty ratios for the ve ...


5
Erkan Mese, David Allan Torrey: Method and apparatus for space vector modulation in multi-level inverters. Advanced Energy Conversion, David A Torrey, June 21, 2007: US20070139970-A1

An apparatus for space vector modulation of a multi-level inverter, the apparatus comprising: a triangle generator for finding a modulation triangle enclosing a reference voltage vector, the modulation triangle comprising vertex vectors; a duty ratio calculator for determining duty ratios for the ve ...