Abstract: A system includes a gas turbine engine, a generator coupled with the gas turbine engine, and controller circuitry. The generator may be rotatable by the gas turbine engine to generate electric power on a load bus. The controller circuitry may control the load bus to manage an output torque of the gas turbine engine in accordance with a load demand present on the generator. The controller circuitry may dynamically alternate supply of electric power from the load bus to a first load and a second load to maintain operational transient parameters of the gas turbine engine within a predetermined range.
Type:
Grant
Filed:
November 21, 2019
Date of Patent:
June 8, 2021
Assignee:
ROLLS-ROYCE MARINE NORTH AMERICA INC.
Inventors:
Ivan Troitsky, Ainsmar Brown, James Greg Steinrock, Donald Silverstein
Abstract: A system includes a gas turbine engine, a generator coupled with the gas turbine engine, and controller circuitry. The generator may be rotatable by the gas turbine engine to generate electric power on a load bus. The controller circuitry may control the load bus to manage an output torque of the gas turbine engine in accordance with a load demand present on the generator. The controller circuitry may dynamically alternate supply of electric power from the load bus to a first load and a second load to maintain operational transient parameters of the gas turbine engine within a predetermined range.
Type:
Application
Filed:
November 21, 2019
Publication date:
May 27, 2021
Applicant:
Rolls-Royce Marine North America Inc.
Inventors:
Ivan Troitsky, Ainsmar Brown, James Greg Steinrock, Donald Silverstein
Abstract: A power management system may include an energy source and a generator driven by a gas turbine engine to output generator power to a common bus. A source power converter is electrically coupled between the energy source and the common bus. A controller circuitry includes an adaptive filter to filter a power signal indicative of power consumption of a variable load on the common bus, and outputs a filtered signal as a load demand signal to the generator. A source demand error signal is also output to control the source power converter to supply power from the energy source to the common bus. The controller circuitry is further configured to automatically adjust the adaptive low pass filter in accordance with the power consumption of the dynamic load and the load demand signal of the generator.
Type:
Grant
Filed:
November 22, 2019
Date of Patent:
November 10, 2020
Assignee:
Rolls-Royce Marine North America Inc.
Inventors:
Donald Silverstein, Ainsmar Brown, Ivan Troitsky, James Greg Steinrock
Abstract: A towable antenna system is deployable and retrievable from and tetherable to an underwater vehicle while the underwater vehicle is submerged under water. An underwater vehicle having a towable antenna system is capable of communicating with one or more remote communication systems, the towable antenna system acting as an intermediary for communications between a submerged underwater vehicle and the one or more remote communication systems.
Type:
Grant
Filed:
June 9, 2010
Date of Patent:
August 26, 2014
Assignee:
Rolls-Royce Marine North America, Inc.
Inventors:
Roger E. Race, Jacob C. Piskura, David S. Sanford