Patents Examined by Pedro J. Cuevas
  • Patent number: 10443569
    Abstract: A wind operated electrical power generating system integrating a wind powered turbine with an electric power generator. The generator is capable of outputting a power level that is greater than a power level obtained by the turbine when the system is operating at an operational rotational speed. The power output is optimized by increasing a load upon the generator. The optimization is based upon the rotational speed of the elements of the system. The system adjusts the load applied to the generator as the system meets each of a plurality of predetermined rotational speeds. The load adjustment can be provided by manual or automated intervention. The system can integrated the generator directly within the turbine or remotely. In a remote configuration, a hydraulic pump obtains power from the turbine and transfers the power by flow of hydraulic fluid to a hydraulic motor. The hydraulic motor drives the generator.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 15, 2019
    Inventor: Alfred Finnell
  • Patent number: 10443511
    Abstract: A power generating unit, control unit and modular power generating system. A power generating unit includes an engine-generator set including an engine that produces mechanical power and a generator mechanically coupled to the engine. The generator converts the mechanical power to electrical power provided to a DC link. The control unit includes at least one controller configured to control fuel flow to the engine based on a voltage of the DC link.
    Type: Grant
    Filed: February 21, 2018
    Date of Patent: October 15, 2019
    Assignee: Dynamo Micropower Corporation
    Inventors: Jason How-Ring Ethier, Ivan Wang, German Lakov
  • Patent number: 10439474
    Abstract: A turbine includes a rotor. The rotor is connected to at least one blade. The blade is at least partially ultrahard material.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: October 8, 2019
    Inventors: David R. Hall, Jonathan D. Marshall, Jordan Dane Englund
  • Patent number: 10436167
    Abstract: A starter system for a powertrain comprises a brushless electric starter motor operatively connectable to an internal combustion engine. The starter system includes both an ultracapacitor power pack and a battery power pack. A nominal voltage of the ultracapacitor power pack is greater than that of the battery power pack. A DC-DC converter operatively connects the battery power pack and the ultracapacitor power pack and converts direct current at a first voltage level of the battery power pack to direct current at a greater second voltage level of the ultracapacitor power pack. An electronic control system is operable to control the brushless electric starter motor to start the engine using power provided from the ultracapacitor power pack, and to control the DC-DC converter to recharge the ultracapacitor power pack using power provided from the battery power pack through the DC-DC converter. A method of controlling the starter system is included.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: October 8, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Chandra S. Namuduri, Venkata Prasad Atluri, Lei Hao
  • Patent number: 10427527
    Abstract: The present disclosure provides an apparatus with a prime mover coupled to a generator that is directly electrically coupled to an electric motor. A propeller or fan may be coupled to and driven by the electric motor. A bi-directional power converter may be coupled to the generator and further coupled to an energy storage device. The energy storage device may be selectively coupled to the electric motor. Methods of using the apparatus are also provided.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: October 1, 2019
    Assignees: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.
    Inventors: William L. Siegel, Rigoberto J. Rodriguez, Mark J. Blackwelder, John T. Alt
  • Patent number: 10432119
    Abstract: A gas turbine control device for a gas turbine system includes a sensing unit for measuring the rotor speed and the output of the power generator; a speed regulation rate setting unit for calculating an actual speed regulation rate based on the measured rotor speed and the measured output of the power generator, and for setting a reference speed regulation rate based on the actual speed regulation rate and the target speed regulation rate; and a fuel amount control unit for controlling an amount of fuel supplied to the combustor based on the set reference speed regulation rate. Stable system operation is secured by a method of controlling the gas turbine system to satisfy a target speed regulation rate if additional power should be supplied due to sudden load fluctuations or a failure at another power plant.
    Type: Grant
    Filed: April 14, 2018
    Date of Patent: October 1, 2019
    Assignee: Doosan Heavy Industries Construction Co., Ltd.
    Inventor: Byung Hee Choi
  • Patent number: 10422311
    Abstract: A hydroelectricity generating unit capturing marine current energy includes a floating hull, at least one paddle wheel assembly, at least one generator assembly, a torque transmission system, and an anti-drift mooring system. The at least one paddle wheel assembly is rotatably mounted to the floating hull and operatively coupled with the at least one generator assembly by the torque transmission system, wherein a kinetic energy of the at least one paddle wheel assembly is transferred to the at least one generator assembly by the torque transmission system to generate hydroelectricity. The torque transmission system can be a hydraulic system, a pulley system, a multiple gearbox system, or a direct driveshaft. The floating hull is tensionably coupled to a subsurface environment by the anti-drift mooring system, enabling the least one paddle wheel assembly to capture water current.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: September 24, 2019
    Inventor: Donald Hollis Gehring
  • Patent number: 10418926
    Abstract: A main field circuit of an electrical generator and associated system and method are disclosed. The main field circuit comprises a main field winding configured to conduct a main field current, and a counter-field winding arranged proximate to the main field winding. The main field circuit further comprises a switch element configured to selectively couple at least a portion of the main field current into the counter-field winding to reduce a magnitude of the main field current. Coupling at least a portion of the main field current into the counter-field winding may be performed responsive to one or predefined conditions, such as a predefined load fault condition and enabling a predefined field weakening operation.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: September 17, 2019
    Inventors: Lijun Gao, Shengyi Liu
  • Patent number: 10411627
    Abstract: An AC excitation synchronous condenser and a control method, an AC-excitation induction machine, a full-controlled AC excitation converter, a grid-side converter and a controller. The AC-excitation induction machine is the core power converting device, and its stator and rotor windings are AC windings with terminals. The controller is configured to control the full-controlled AC excitation converter to perform excitation and speed regulation on the AC-excitation induction machine and also control the grid-side converter to ensure the excitation capability of the full-controlled AC excitation converter, so that support and regulation of the active power and reactive power are achieved.
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: September 10, 2019
    Assignee: Huazhong University of Science and Technology
    Inventors: Jiabing Hu, Yuanzhu Chang, Enbo Zhang, Xiaoming Yuan
  • Patent number: 10408187
    Abstract: A wave energy converter has blades (54, 56, 57, 59) on frames (51, 52) rotating about a pivot joint (53) on a structure (4, 52, 502, 505, 86). There is reciprocating rotary motion of the frame with respect to the structure, providing reciprocating rotary input power to a mechanism (73, 94, 98). The mechanism (98) may be arranged so that the reciprocating input power is transferred to uni-directional power via pulleys (101, 106) and sprag clutches (102, 107).
    Type: Grant
    Filed: August 9, 2016
    Date of Patent: September 10, 2019
    Assignee: JOSPA LIMITED
    Inventors: Patrick Joseph Duffy, Jocelyn Raymond Fitzsimons
  • Patent number: 10411625
    Abstract: A method for determining a speed (nG) of a generator unit which has an electric machine (100) with a rotor winding (110) and a stator winding (120) and a rectifier (130) connected thereto, via which rectifier the electric machine (100) is connected to an electrical system (150) of a motor vehicle, the speed (nG) being determined depending on the plot of an excitation current (IE) flowing through the rotor winding (110) of the electric machine (100). In particular, the speed is determined from a known relationship between the speed, the frequency of the excitation current, the number of pole pairs and optionally the number of phases when there is an error that leads to a constant phase voltage being output.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: September 10, 2019
    Assignee: Robert Bosch GmbH
    Inventors: Fabio Magini, Manuel Mueller, Michael Wohlfarth, Miriam Riederer
  • Patent number: 10400751
    Abstract: A method for operating a wind turbine, the method including, in response to receiving a request for a system start of the wind turbine, monitoring at least one measured value over a predetermined monitoring period; and effecting the system start in response to determining that the at least one measured value in the monitoring period corresponds to defined specifications, wherein: the at least one measured value is stored continuously in a data storage and a storage period in the data storage corresponds to at least the predetermined monitoring period, and monitoring the at least one measured value in response to receiving the request for the system start comprises checking, on the basis of the data storage, whether the at least one measured value in a storage period corresponding to the monitoring period before the request corresponds to the defined specifications.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: September 3, 2019
    Assignee: SENVION GmbH
    Inventor: Tobias Schäfer
  • Patent number: 10393082
    Abstract: Systems and methods are disclosed of an engine driven power system that includes a permanent magnet generator coupled to the engine. An energy storage device is connected to the permanent magnet generator. A controller controls the energy storage device to provide power to the permanent magnet generator to start the engine.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: August 27, 2019
    Assignee: Illinois Tool Works Inc.
    Inventor: Jeffery R. Ihde
  • Patent number: 10384559
    Abstract: A method includes selecting a link voltage based on voltage efficiencies of components in an electric drive motor system, and applying the link voltage to an inverter electrically coupled to a drive motor to increase system efficiency.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: August 20, 2019
    Inventors: Jason Daniel Kuttenkuler, Henry Todd Young, Jeffrey John Wolff
  • Patent number: 10377225
    Abstract: A mining machine including a bi-directional electrical bus, a power source coupled to the bi-directional electrical bus, a motor coupled to the bi-directional electrical bus, the motor powered by energy available on the bi-directional electrical bus, a kinetic energy storage system coupled to the bi-directional electrical bus and a controller. The controller is configured to communicate with the kinetic energy storage system and the power source. Wherein the controller is configured to operate the kinetic energy storage system as a primary power source for the bi-directional electrical bus and to operate the power source as a secondary power source for the bi-directional electrical bus when the kinetic energy storage system cannot satisfy an energy demand on the bi-directional electrical bus.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: August 13, 2019
    Assignee: Joy Global Longview Operations LLC
    Inventors: William A. Dorsett, James B. Dillinger, Michael John Lyten, Marcus N. Barr, Bradley Maxwell Neilson, Don F. Owings
  • Patent number: 10378506
    Abstract: Three controls, three variable gear assemblies, an optional hatch or variable propeller pitch, and a variable overlap generator (VO generator), as well as one or more commutator and brush-less free direct current generators may be used independently and together to provide constant frequency and voltage output power and to increase the amount of output power generated with the same input water flow or wind speed in a plurality of embodiments useful in wind power generation and water renewable energy generators for any of tidal and ocean current or wave conditions. Two Transgear™ assemblies side-by-side and sharing the same central shaft may comprise a constant speed motor control, produce required constant frequency and voltage and be reduced in part count and complexity.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: August 13, 2019
    Assignee: Differential Dynamics Corporation
    Inventor: Kyung Soo Han
  • Patent number: 10364797
    Abstract: The invention relates to a method for controlling a wind turbine in partial and full load. In order to avoid disadvantages of switching between partial and full load controllers, the wind turbine control system is configured so that both the partial and full load controller provides control action during partial and full load. For that purpose, the partial and full load controllers are configured with variable gains, wherein gain scheduling is performed so that the gain of partial load controller is larger than the gain of the full load controller during partial load and vice verso so that the gain of the full load controller is larger than the gain of the partial load controller during full load.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: July 30, 2019
    Inventors: Fabio Caponetti, Jesper Sandberg Thomsen, Jacob Deleuran Grunnet
  • Patent number: 10364802
    Abstract: A method for heating a wind turbine facility includes: charging a DC link of an electrical converter connected with a wind turbine of the wind turbine facility; heating air inside the wind turbine facility with heat generated by a voltage limiting unit interconnected with the DC link, which includes a resistor adapted for dissipating electrical energy into heat for reducing a voltage in the DC link, when the voltage is above a threshold voltage; wherein the voltage limiting unit is controlled, such that the voltage limiting unit generates heat according to settings defined in a controller of the voltage limiting unit. The heating settings are changed based upon commands from a user interface. Furthermore, the DC link is charged by a grid side converter of the wind turbine facility with power from an electrical grid.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: July 30, 2019
    Assignee: ABB Schweiz
    Inventors: Matthias Schult, Stephan Ebner, Christian Schlegel, Dominik Flum
  • Patent number: 10359023
    Abstract: An articulating wave energy conversion system (AWECS) formed of a forward barge hingedly-coupled to a two-part aft barge configuration for reducing the attenuation of available wave energy along the length of the AWECS. The two-part aft barge includes a buoyant section that is either rigidly-connected, or unitized with, a lever-arm barge. The lever-arm barge includes a draft that is much smaller than the drafts of the forward barge and buoyant section. In addition, the lever-arm barge includes a large waterplane area that results in large hydrostatic forces as the waves pass. One or more intermediate barges may be hingedly-coupled between the forward barge and the aft barge. Pumps can be positioned across every hinge to convert the barge articulations into mechanical energy for driving the pumps based on wave motion for a variety of functions, such as water desalination, electrical energy generation, etc.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: July 23, 2019
    Assignee: MURTECH, INC.
    Inventors: Robert C. Murtha, Jr., Michael E. McCormick
  • Patent number: 10352290
    Abstract: A wave energy conversion cylinder includes an outer cylinder and a center rod disposed along an axis of the outer cylinder. A plurality of electrically-conductive windings are disposed about an inner circumference of the outer cylinder. A magnet is slidably disposed on the center rod. A buoyancy cylinder is disposed outwardly of the outer cylinder. A first moveable ring weight may be slidably disposed along the axis of the center rod and a second moveable ring weight may be slidably disposed along the axis of the center rod. The first moveable ring weight and the second moveable ring weight facilitate control to tune a mass moment of inertia of the wave energy conversion cylinder.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: July 16, 2019
    Assignee: The Texas A&M University System
    Inventors: Heonyong Kang, Moohyun Kim