Patents Examined by Pedro J. Cuevas
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Patent number: 11959452Abstract: A wave energy capture, storage, and conversion assembly, comprising at least one pump assembly, and a point absorber operatively arranged to displace the at least one pump assembly in a first circumferential direction.Type: GrantFiled: November 25, 2022Date of Patent: April 16, 2024Inventor: Loubert S. Suddaby
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Patent number: 11952976Abstract: A runner for a hydraulic turbine configured to reduce fish mortality. The runner includes a hub and a plurality of blades extending from the hub. Each blade includes a root connected to the hub and a tip opposite the root. Each blade further includes a leading edge opposite a trailing edge, and a ratio of a thickness of the leading edge to a diameter of the runner can range from about 0.06 to about 0.35. Further, each blade has a leading edge that is curved relative to a radial axis of the runner.Type: GrantFiled: February 28, 2023Date of Patent: April 9, 2024Assignee: Natel Energy Holdings, Inc.Inventors: Abraham D. Schneider, Sterling Marina Watson
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Patent number: 11955800Abstract: Aspects of the present invention relate to a method of voltage control for at least one wind turbine generator configured to absorb and supply reactive power on demand, the method comprises: receiving a dispatch signal from a power plant controller indicating a reactive power set point; determining a terminal voltage level of the at least one wind turbine generator; generating a reactive power correction value based on a deviation of the terminal voltage level from a voltage set point; adjusting the reactive power set point by the reactive power correction value; and controlling the at least one wind turbine generator according to the adjusted reactive power set point.Type: GrantFiled: May 6, 2021Date of Patent: April 9, 2024Assignee: VESTAS WIND SYSTEMS A/SInventors: Torsten Lund, Germán Claudio Tarnowski, John Godsk Nielsen, Per Hagen Nielsen
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Patent number: 11952974Abstract: A wave energy converter is provided which includes a nacelle having a starboard side and a port side axis, and housing a power take-off. The wave energy converter also includes at least one buoyancy member coupled to the nacelle, and a ballast tank coupled to the nacelle. The ballast tank, the at least one buoyancy member, and the nacelle, together form a first body, where the first body is coupled to the power take-off. The wave energy converter further includes a float and a drive arm forming a second body, where the second body is rotatably coupled to the first body about a coupling axis, and the second body is coupled to the power take-off. The second body is configured to rotate relative to the first body about the coupling axis within a radial span bounded by a proximal end of the float and a radially distal end of the float.Type: GrantFiled: September 9, 2022Date of Patent: April 9, 2024Assignee: Columbia Power Technologies, Inc.Inventors: Pukha Lenee-Bluhm, Michael L. Ondusko, Zhe Zhang
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Patent number: 11946453Abstract: A damping device and a wind turbine generator system comprising the damping device. The damping device comprises: damping components; structural supports, the structural supports connecting the damping components to a mass block provided on an object to be damped, each structural support comprising a gear, and the gear being rotatably provided on the structural support; and guide rails, wherein each guide rail has a predetermined curvature, each guide rail has a first end used for being rotatably connected to the object to be damped and a second end supported on the corresponding structural support, a tooth portion engaged with a gear is formed on a side portion of each guide rail, and when the mass block swings, the swing of the mass block is converted into transmission by means of the engagement transmission between the guide rail and the gear for input into the corresponding damping component.Type: GrantFiled: September 10, 2020Date of Patent: April 2, 2024Assignee: BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD.Inventors: Yan Liu, Liang Bai, Shuanghu Li, Jiankun Chu, Wensi Ren
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Patent number: 11946442Abstract: Underwater vehicles capable of self-propulsion are described. An underwater vehicle includes a cross-flow turbine including two or more foils spaced apart from a main shaft. The foils have a pitch that is adjustable under control of a pitch control mechanism. The underwater vehicle also includes a frame supporting the main shaft. The frame enables rotation of the cross-flow turbine. The underwater vehicle additionally includes a generator-motor set including rotor and stator elements. The rotor element is in rotary communication with the main shaft.Type: GrantFiled: March 1, 2018Date of Patent: April 2, 2024Inventors: Jarlath McEntee, Nathanial Hayes, Millard Firebaugh
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Patent number: 11946455Abstract: A wind energy generation system includes a tower, a nacelle provided in an upper portion of the tower to be rotatable around a central axis of the tower, a hub provided in front of the nacelle to be rotatable around an axis orthogonal to the central axis, and one or more blades provided in the hub. The hub includes a hub body portion to which the blades are attached, and a fitting protruding portion that protrudes from a back surface side of the hub body portion. A fitting portion having an opening portion is provided in front of the nacelle, and the fitting protruding portion is fitted into the fitting portion from the opening portion. In the wind energy generation system, outflow of oil to the outside of the generation system can be inhibited.Type: GrantFiled: December 22, 2020Date of Patent: April 2, 2024Assignee: ELECTRIC POWER DEVELOPMENT CO., LTD.Inventor: Takeshi Sasakawa
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Patent number: 11942873Abstract: A secondary magnetic excitation generator-motor device that inputs a first ignition pulse command to a three-level NPC power converter such that a detected excitation current value corresponds with an excitation current command value, the secondary magnetic excitation generator-motor device having a function of identifying a first phase, a second phase, or a third phase in descending order of a current absolute value, wherein a pulse switch to output an ignition pulse command to the three-level NPC power converter switches the ignition pulse command to the second ignition pulse command when a current absolute value exceeds a set overcurrent level 1, and switches the ignition pulse command to the first ignition pulse command when current absolute values for three phases are all equal to or smaller than a set overcurrent level 2.Type: GrantFiled: August 8, 2019Date of Patent: March 26, 2024Assignees: HITACHI MITSUBISHI HYDRO CORPORATION, HITACHI, LTD.Inventors: Akira Bando, Hironari Kawazoe, Akira Kikuchi
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Patent number: 11933266Abstract: Thus there is provided a method of installing rotor blades of a wind turbine to a rotor hub of the wind turbine. The wind turbine has a tower having a tower longitudinal axis. The rotor hub has a first, a second and a third rotor blade connection. The rotor hub is rotated until the first rotor blade connection is at an angle of 90° or 270° with respect to the tower longitudinal axis. The first rotor blade is lifted substantially horizontally and fixed to the rotor blade connection. The rotor hub is rotated so that the second rotor blade connection is at an angle of 90° or 270° with respect to the tower longitudinal axis. The second rotor blade is lifted substantially horizontally and fixed to the second rotor blade connection. The rotor hub is further rotated until the third rotor blade connection is at an angle of 60° or 300° with respect to the tower longitudinal axis. The third rotor blade is lifted at an angle of ?=30° with respect to a horizontal and fixed to the third rotor blade connection.Type: GrantFiled: March 18, 2020Date of Patent: March 19, 2024Assignee: Wobben Properties GmbHInventors: Florian Rubner, Klaas Schumann, Felix Fettback, Wolfgang Meyer-Stöver, Frank Knoop, Klaus Bünting, Frank Zimmermann, Martin Hüller, Thomas Rehberger
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Patent number: 11936327Abstract: A hybrid power-generator system includes an engine, an electric generator, first and second rectifiers, first and second DC-DC voltage converters, a DC bus, an inverter, and one or more controllers. The system provides a unique method of joining two power sources such that the relative proportion utilized can be changed to any value seamlessly, such as to avoid daily and/or seasonal variations in utility charges. Since the AC output portion of the circuit is independent of the utility grid, power can be supplied at variable frequencies to motor loads with significant positive impacts in load efficiency. Power increases required by the load(s) that occur rapidly can utilize the electrical grid to assist for the brief transient, allowing the engine, which is maintained at a fixed and wide-open-throttle position, to continue operation and in a more gradual process to resume its blend target for power generation.Type: GrantFiled: June 23, 2022Date of Patent: March 19, 2024Assignee: Tecogen Inc.Inventors: Joseph Gehret, Robert A. Panora, Jian Wen
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Patent number: 11923719Abstract: The present disclosure relates to the field of vehicle technology and provides an energy recovery control method, a system, and a vehicle. The method is applied in a vehicle, and the vehicle comprises a drive motor and a battery electrically connected to the drive motor; a first energy recovery torque curve with respect to the drive motor is pre-configured in the vehicle, and the first energy recovery torque curve is used to indicate a correspondence relationship between vehicle speed and energy recovery torque of the drive motor. The present disclosure performs reduction on a first energy recovery torque curve by means of utilizing a reduction ratio, allowing energy recovery in accordance with a relatively low torque strength when a usable charge power of the battery is unable to satisfy a preset power requirement corresponding to the first energy recovery torque curve.Type: GrantFiled: January 11, 2021Date of Patent: March 5, 2024Assignee: GREAT WALL MOTOR COMPANY LIMITEDInventors: Yinlei Wang, Tong Kang, Gengnan Zhang, Zhenmin Jiang, Baogang Wang, Xiu Liu
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Patent number: 11916430Abstract: A disclosed information handling system is coupled to a power adapter that is coupled to an AC line power source. The system includes an embedded controller storing instructions executable to determine that a trigger condition for limiting electrical power drawn by the system from the power adapter is met and, in response to the determination and in accordance with a low power operating mode, to limit electrical power drawn from the power adapter by the system to an amount less than or equal to the lesser of a power rating of the power adapter and a capacity of the AC line power source to supply electrical power. Limiting the electrical power drawn from the power adapter may include limiting the electrical power consumed by operation of the system or limiting a rate at which an internal battery of the system is charged by electrical power supplied by the power adapter.Type: GrantFiled: January 21, 2021Date of Patent: February 27, 2024Assignee: Dell Products L.P.Inventors: Andrew Thomas Sultenfuss, Richard Christopher Thompson, Mohammed K. Hijazi
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Patent number: 11916467Abstract: A slip ring system of an electrically excited dynamoelectric machine can be designed to be closed or open and includes a carrier segment configured to include a brush holder which includes a brush pocket for receiving a brush. The brush holder includes means for cooling the brush in the brush holder and/or for cooling the brush holder and has a surface-enlarging structure so as to enable a cooling air flow to be guided within the slip ring system and thereby cool the brush holder and/or brush pocket.Type: GrantFiled: April 3, 2020Date of Patent: February 27, 2024Assignee: Flender GmbHInventors: Herbert Binder, Daniel Friedl, Robert Gruber, Oliver Memminger, Andrej Raskopf, Klaus Schifferer
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Patent number: 11905931Abstract: Provided is controller for a wind turbine including a power controller unit for controlling a power output of an electric generator included in the wind turbine. The power controller unit operates the electric generator according to a speed reference value and a power reference value, the speed reference value and a power reference value being chosen along a linear operating trajectory in a power vs speed graph, the linear operating trajectory including a point corresponding to the nominal power and the nominal generator speed. The power controller unit includes a slider command for selecting the angular position of the linear operating trajectory in the power vs speed graph.Type: GrantFiled: March 16, 2020Date of Patent: February 20, 2024Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/SInventors: Per Egedal, Michael Stoettrup
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Patent number: 11898531Abstract: A variable speed pumping system includes a generator motor including a frequency converter, in which the variable speed pumping system, in the pumping mode, supply a power command to the generator motor to perform power control, and the power control correction signal generator adds a value obtained by multiplying a signal based on a difference between the power input command and an actual power input measured by a power detector in the pumping mode by a constant gain to a signal based on the deviation and inputs the added value to an integration control element to generate the power control correction signal based on an output signal of the integration control element.Type: GrantFiled: February 10, 2020Date of Patent: February 13, 2024Assignee: HITACHI MITSUBISHI HYDRO CORPORATIONInventor: Masahiro Yoshida
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Patent number: 11881754Abstract: Disclosed is an electrically conductive rigid bar (80) for electrically connecting an electric machine (70) of an aircraft turbine engine, characterised in that it comprises: —an elongate body (80a) made from electrically conductive material having a polygonal cross-section greater than or equal to 50 mm2, and— an electrical insulation sheath (80b) that surrounds the body, at least one of the longitudinal ends (84a) of the body not being covered by the sheath and comprising a through-hole (86) in which a bolt (88) for fastening and electrically connecting this end is mounted.Type: GrantFiled: November 24, 2020Date of Patent: January 23, 2024Assignees: SAFRAN AIRCRAFT ENGINES, SAFRAN ELECTRICAL & POWERInventors: Vincent Francois Georges Millier, Loic Paul Yves Guillotel, Philippe Delbosc
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Patent number: 11879429Abstract: A steel tower ring segment for a wind turbine tower section, to a wind turbine tower section, to a wind turbine tower and to a wind turbine, and also to methods for producing a steel tower ring segment and a wind turbine tower section. A steel tower ring segment for a wind turbine tower section, comprising a first casing segment with a segment height, a segment length in the segment circumferential direction, a first segment thickness, and a first horizontal joint side, wherein the first casing segment has a first thickening region in a region adjoining the first horizontal joint side, wherein the first thickening region has a first thickening thickness, and the first thickening thickness is larger than the first segment thickness, wherein the first thickening region has a first cutout, wherein the first cutout is arranged spaced apart from the first horizontal joint side, and wherein a first passage opening leads from the first cutout to the first horizontal joint side.Type: GrantFiled: February 13, 2020Date of Patent: January 23, 2024Assignee: Wobben Properties GmbHInventors: Alexander Hoffmann, Harro Harms, Rene Mertens, Daniel Haase
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Patent number: 11872867Abstract: A reefer truck power unit employs a plurality of power sources including roof mounted solar panels, momentum generation, shore power and high capacity storage batteries. The refrigeration system is configured for refrigerating a payload area of the vehicle utilizing power from the power sources, and employs a voltage converter for augmenting the power from the propulsion vehicle source for use with a native vehicle charging//starting system, and a transport load transformer for converting power from the power sources to 3 phase power for powering the refrigeration system. A bank of batteries stores power from the sources for subsequent dispersal to the refrigeration unit.Type: GrantFiled: January 26, 2021Date of Patent: January 16, 2024Assignee: eNOW Systems LLCInventors: Gerald Larson, Jeffrey C. Flath, Robert W. Doane, Philip R. Pierce, Stephen Lasher, Ryan Kennedy Kemmet
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Patent number: 11867144Abstract: A wave energy capture, storage, and conversion assembly, including a first screw pump assembly, including a screw including a first end and a second end, and a tube at least partially encircling the screw, the tube including a third end and a fourth end, and a first point absorber operatively arranged to displace the screw in a first circumferential direction.Type: GrantFiled: October 31, 2022Date of Patent: January 9, 2024Inventor: Loubert S. Suddaby
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Patent number: 11867119Abstract: An electric generator equipped in a multi-shaft gas turbine engine for aircraft, includes: a rotor attached to the rear end portion of a low-pressure shaft rotatably supported by a bearing in the gas turbine engine; a stator provided around the rotor; wherein the electric generator has no structure to support the low-pressure shaft and the rotor.Type: GrantFiled: February 10, 2022Date of Patent: January 9, 2024Assignee: IHI CorporationInventor: Naoki Seki