Patents Assigned to Power Systems, Inc.
  • Patent number: 12206081
    Abstract: A battery module includes features to optimize cooling while providing electrical isolation and cell gas-venting channels. The battery module can include the integration of a heatsink in order to improve thermal performance. Thermally conductive pads can be provided to create an electrically isolated interface between a plurality of series-connected battery-cell lead plates, at different potentials, and the heatsink. Optimization, by stacking thin and thick thermally conductive pads, allows for creation of gas-venting channels along the positive cell terminal locations. In some arrangements, a plurality of fluid paths are disposed between the inlet and the outlet of the battery module to provide heat convective airflow through the battery module.
    Type: Grant
    Filed: October 25, 2022
    Date of Patent: January 21, 2025
    Assignee: Generac Power Systems, Inc.
    Inventors: Joel Hooper, Peter Lex, Tod Tesch, Benjamin Francis Polito, Joshua Daniel Kaufman
  • Publication number: 20250023458
    Abstract: A photovoltaic inverter and a control method and apparatus therefor, and a readable storage medium, which relate to the technical field of information. The control method is applied to a multi-channel photovoltaic inverter. Separate power limitation is simultaneously performed on the power of the whole machine of the inverter and the power of each channel of the inverter, such that there is no need to fix the operation power of a single channel, and it is only necessary to determine whether the operation power exceeds a safety range. Compared with previous control methods for a photovoltaic inverter, when the same input energy is acquired, the maximum power that matches the whole machine is acquired first, such that the whole machine is prevented from being damaged.
    Type: Application
    Filed: June 12, 2023
    Publication date: January 16, 2025
    Applicant: ALTENERGY POWER SYSTEM INC.
    Inventors: Yuhao LUO, Guoliang WU, Biaojie QI, Yongchun YANG
  • Patent number: 12199517
    Abstract: A power converter includes a controller for driving a corresponding power switch in the power converter. The controller may have a current sense terminal adapted to sense/receive a current sense signal indicative of a current flowing through the corresponding power switch and a current limit terminal adapted to receive a reference current sense signal indicative of a current flowing through another power switch in the power converter. The controller may turn off the corresponding power switch once the current sense signal reaches a peak value of the reference current sense signal.
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: January 14, 2025
    Assignee: Monolithic Power Systems, Inc.
    Inventor: Yan-Cun Li
  • Publication number: 20250015755
    Abstract: A photovoltaic solar assembly and a switching method therefor. The photovoltaic solar assembly includes an execution junction box, a single master control junction box, and a plurality of solar cell strings that are connected in series; the execution junction box includes a corresponding bypass diode; the master control junction box includes a corresponding bypass diode and a control assembly, and the control assembly is merely arranged in the master control junction box; the solar cell strings are connected in series with each other by means of the corresponding bypass diode of the execution junction box or the corresponding bypass diode of the master control junction box; and the control assembly is used for controlling connection and disconnection between the solar cell strings and a main power circuit.
    Type: Application
    Filed: April 29, 2022
    Publication date: January 9, 2025
    Applicant: ALTENERGY POWER SYSTEM INC.
    Inventors: Dongming ZHOU, Yuhao LUO
  • Publication number: 20250007291
    Abstract: A distributed photovoltaic system includes N first photovoltaic modules each configured to convert solar energy into direct current power, N energy storage modules, and N inverters. Output terminals of the N first photovoltaic modules are connected to input terminals of the N energy storage modules in one-to-one correspondence. Output terminals of the N energy storage modules are connected to first input terminals of the N inverters in one-to-one correspondence. Output terminals of the N inverters are connected in parallel at a joint connected to a power grid or load. That is, a single energy storage module is connected to a single photovoltaic module and a single inverter, so that the single energy storage module is small in capacity and low in power. In addition, different energy storage modules are scattered.
    Type: Application
    Filed: February 21, 2022
    Publication date: January 2, 2025
    Applicant: ALTENERGY POWER SYSTEM INC.
    Inventors: Yuhao LUO, Zhimin LING
  • Publication number: 20250007064
    Abstract: A battery module can comprise: an end plate; a pressure plate spaced apart from the end plate by a distance; an array of pouch cells disposed between the end plate and the pressure plate; and an expansion protection system configured to allow the distance to increase from a first length to a second length in response to charging the array of pouch cells, and/or decrease from a second length to the first length or a third length in response to discharging the array of pouch cells.
    Type: Application
    Filed: September 13, 2024
    Publication date: January 2, 2025
    Applicant: Electric Power Systems, Inc.
    Inventors: James Banwell, Randy Dunn
  • Patent number: 12183905
    Abstract: A system and method for a safe and reliable high voltage battery module is disclosed. A weight and cost efficient structure to connect a plurality of cell-brick assemblies in series and/or parallel and protect against a thermal runaway event, resulting in improved manufacturability and reliability.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: December 31, 2024
    Assignee: Electric Power Systems, Inc.
    Inventors: Randy Dunn, James Barnwell
  • Patent number: 12176719
    Abstract: Various enhancements to grid-interactive inverters in accordance with embodiments of the invention are disclosed. One embodiment includes input terminals configured to receive a direct current, output terminals configured to provide an alternating output current to the utility grid, a controller, an output current sensor, and a DC-AC inverter stage comprising a plurality of switches controlled by control signals generated by the controller. In addition, the controller is configured to: generate control signals that cause the switches in the DC-AC inverter stage to switch a direct current in a bidirectional manner; measure the alternating output current; perform frequency decomposition of the output current; and generate control signals that cause the switches in the DC-AC inverter stage to switch current in a way that the magnitude of a plurality of unwanted current components is subtracted from the resulting output current.
    Type: Grant
    Filed: September 1, 2023
    Date of Patent: December 24, 2024
    Assignee: Generac Power Systems, Inc.
    Inventors: Christopher Richard Jones, Alexandre Rudolf Kral
  • Publication number: 20240413643
    Abstract: This disclosure is directed to generator systems and methods for monitoring a direct current bus and automatically operating in response to a power level of the direct current bus dropping below a desired power level or to a threshold before dropping below the power level. The automatic operation of the generator system may raise or keep the actual power level of the system above the desired power level or threshold.
    Type: Application
    Filed: June 12, 2024
    Publication date: December 12, 2024
    Applicant: Generac Power Systems, Inc.
    Inventors: Tin Luu, Robert Ricciardelli, Teresa Nash, Matthew Ellis
  • Publication number: 20240405717
    Abstract: A shutdown device control method, system and apparatus, and a shutdown controller. If the shutdown controller detects that an input voltage of the shutdown controller is reduced, when the input voltage of the shutdown controller is reduced to a preset protection voltage but has not been reduced to an undervoltage protection threshold voltage, the shutdown controller controls the shutdown of a shutdown device connected to a power supply photovoltaic assembly that supplies power to the shutdown controller, so that a bypass diode connected to the power supply photovoltaic assembly bypasses the power supply photovoltaic assembly, so that the power supply photovoltaic assembly only supplies power to the shutdown controller.
    Type: Application
    Filed: March 14, 2022
    Publication date: December 5, 2024
    Applicant: ALTENERGY POWER SYSTEM INC.
    Inventors: Dongming ZHOU, Yuhao LUO
  • Publication number: 20240405570
    Abstract: A method and a device for a current source to respond, and a computer-readable storage medium are provided. Parallel control for the current source and a voltage source is established, and a voltage across an alternating-current bus is acquired. When the voltage is lower than a first threshold, the current source outputs a current to increase the voltage across the alternating-current bus. Then, it is determined whether the voltage exceeds a second threshold. When the voltage exceeds the second threshold, the current source stops outputting the current. When the voltage does not exceed the second threshold, power is distributed between the current source and the voltage source after power synchronization. The current source directly outputs the current, and therefore unnecessarily wait for the power from the voltage source.
    Type: Application
    Filed: February 23, 2022
    Publication date: December 5, 2024
    Applicant: ALTENERGY POWER SYSTEM INC.
    Inventors: Kaifeng JIN, Dongming ZHOU, Yuhao LUO
  • Publication number: 20240405526
    Abstract: A cable-shaving tool for midspan shaving of a cable jacket includes a housing bottom having a first hinge member along an upper edge, a cavity, and a cable groove extending through a length of the housing bottom. The cable-shaving tool includes a second housing shell having an interior portion having a recess with an upper control surface, an exterior portion, and a second hinge member along a second housing shell edge engageable with the first hinge member. The second housing shell is rotatable about the first hinge member. The cable-shaving tool includes a blade removably securable between a blade holder and a blade support surface on the housing lid, the blade extending within a portion of the recess and a movable cable ramp disposed in the cavity of the bottom housing for urging the cable toward the blade when the second housing shell is in a closed position.
    Type: Application
    Filed: August 11, 2024
    Publication date: December 5, 2024
    Applicant: Hubbell Power Systems Inc.
    Inventors: Will Eisele, Brian Bourgoin, Mark Fowler
  • Patent number: 12152529
    Abstract: A method of operating a forced induction gaseous-fueled engine includes mixing gaseous-fuel and engine intake air to form a mixture at a fuel mixer. The method includes delivering the mixture to an intake manifold by at least partially bypassing a charge air cooler.
    Type: Grant
    Filed: February 5, 2024
    Date of Patent: November 26, 2024
    Assignee: Generac Power Systems, Inc.
    Inventors: Steven W. Craig, Andrew P. Sibrel, Aaron J. Baska, Douglas R. Clement
  • Patent number: 12146780
    Abstract: A vehicle includes a vehicle mass estimator circuit. The vehicle mass estimator circuit is configurable to estimate a mass of vehicle during real-time operation of the vehicle without employing a scale or dedicated mass sensing system. The vehicle mass estimator circuit generates the vehicle mass Mv from: (1) an estimated torque or sensed torque, (2) an estimated motor angular velocity or sensed motor angular velocity, and (3) sensed acceleration or without any sensed acceleration. In one embodiment, the vehicle mass estimator circuit senses motor current during vehicle operation and estimates a mass of the vehicle using the motor current without any dedicated acceleration sensor such as an accelerometer. A motor angular velocity is estimated from the motor current. In another embodiment, the vehicle mass estimator circuit senses motor current during vehicle operation and estimates a mass of the vehicle using the motor current and acceleration information provided by an accelerometer.
    Type: Grant
    Filed: September 12, 2023
    Date of Patent: November 19, 2024
    Assignee: Motiv Power Systems, Inc.
    Inventors: Tai-Sik Hwang, Justin Tomlin, Elias Stein, James Michael Castelaz
  • Publication number: 20240380206
    Abstract: Systems and methods are provided for managing Electric Vehicle Supply Equipment (EVSE) for use with a generator back-up. The EVSE can receive electrical power to generate an electrical load while monitoring a frequency of electrical power. The EVSE and/or another system may determine the generator back-up is supplying power based on the frequency. In response to determining the generator back-up is supplying power, the EVSE can operate at percentage of full power. The EVSE may attempt to reconnect and/or increase the percentage of full power in multiple ways based on a mode the EVSE is operating in. In a lock-out disabled priority mode, the EVSE can attempt to reconnect and begin operating at full power. In a lock-out mode, the EVSE can attempt to reconnect at a percentage of full power and incrementally increase the percentage of full power until full power has been reached.
    Type: Application
    Filed: May 9, 2024
    Publication date: November 14, 2024
    Applicant: Generac Power Systems, Inc.
    Inventors: Austin George Baeten, Nicholas Scott Karfonta, Brandon Michael Schmidt, Daniel Luke Kempema, Samuel Benjamin Desens, Nicholas James Schmidling
  • Publication number: 20240372447
    Abstract: An electric machine includes a housing enclosing a radial motor producing radial flux in a first direction that influences a first magnetic unit to produce a first torque on a rotor arm attached to a common motor shaft. The electric machine also includes a first axial motor located on a first side of the radial motor inside the housing and inside the radial motor that produces a first axial flux to produce a second torque on the rotor arm. The electric machine also includes a second axial motor located on a second, opposing side of the radial motor inside the housing and inside the radial motor that produces a second axial flux to produce a third torque on the rotor arm. The electric machine also includes a controller to control the first torque, the second torque, and the third torque.
    Type: Application
    Filed: July 17, 2024
    Publication date: November 7, 2024
    Applicant: DRS Naval Power Systems, Inc.
    Inventors: Calvin H. Corey, III, Edgar S. Thaxton
  • Publication number: 20240368912
    Abstract: A telescoping mast assembly with stop device. The telescoping mast assembly includes multiple pillars, one or more of which is able to be moved between an extended position and a retracted position. The stop device is mountable to the telescoping mast assembly and functions to prevent the rapid movement of the telescoping mast assembly from the extended position to the retracted position. The stop device includes a pin coupled to a pulley and is movable between an engaged position, in which the stop device restricts the movement a pillar, and a disengaged position in which the stop device does not restrict the movement of the pillar.
    Type: Application
    Filed: May 3, 2024
    Publication date: November 7, 2024
    Applicant: Generac Power Systems, Inc.
    Inventors: Nicholas Charles Lentz, Michael Joseph Finley
  • Patent number: 12119660
    Abstract: The present disclosure is directed to self-synchronizing devices that can connect and self-synchronizes voltage, frequency and phase of two or more power sources. The disclosed embodiments enable a modular power system to serve as the primary or secondary source of power for applications requiring loads from a few kilowatts (KW) to the scale of megawatts (MW). The modular system is generalized to use either a single or multiple power generation sources at once, with the ability to connect and self-synchronize voltage, frequency, and phase of a variety of different types of power sources. Power control systems designed to function with self-synchronizing technology enable a modular power system to satisfy a wide variety of needs, simplifying the existing method of achieving synchronization and enabling new features of resiliency and expandability. The self-synchronization can be implemented into a wide variety of electronics including but not limited to inverters and generator controllers.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: October 15, 2024
    Assignee: Renew Power Systems Inc.
    Inventors: Gregory S. Mowry, Zachary J. Emond, Daniel J. O'Connor, Victoria D. Farias, Carol D. Mikhael
  • Patent number: 12120822
    Abstract: A power module has a printed circuit board (PCB) having an output inductor substrate layer and an output capacitor substrate layer. Power converters of the power module are implemented using monolithic integrated circuit (IC) switch blocks that are mounted on a surface of the power module. Output voltages of the power converters are provided at output voltage nodes. The power converters include output inductors that are embedded within the output inductor substrate layer and output capacitors that are embedded within the output capacitor substrate layer. Embedded output inductors and capacitors are connected to corresponding output voltage nodes.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: October 15, 2024
    Assignee: Monolithic Power Systems, Inc.
    Inventors: Daocheng Huang, Xinmin Zhang, Yishi Su, Yingxin Zhou, Wenyang Huang
  • Patent number: 12119705
    Abstract: A load shed module configured to be connected in series between a power supply and a load is disclosed. A separate load shed module is connected in series between each load and the power supply. The load shed module determines the frequency of the voltage supplied from the power supply. Based on the frequency, the load shed module determines if utility power is connected or if a generator is connected. If the generator is connected and the frequency of the voltage goes outside of a desired operating range for a preset time, the load shed module disconnects the load from the power supply. Each load shed module includes a priority setting and reconnects its corresponding load after a predetermined time corresponding to the priority setting.
    Type: Grant
    Filed: October 17, 2023
    Date of Patent: October 15, 2024
    Assignee: Generac Power Systems, Inc.
    Inventors: Brendan Pancheri, Greg Wischstadt, Robert Iles, Andy Phillips, Taesik Yu, Sungmin Lee