Patents Assigned to Doosan GridTech, Inc.
  • Patent number: 12155221
    Abstract: A facility receives an indication of a rate of energy output sought from a production array of solar panels. The facility controls a power inverter to which the production array is connected to deliver to an electrical grid to which the power inverter is connected a rate of energy output that is based on the indicated rate of energy output.
    Type: Grant
    Filed: January 30, 2023
    Date of Patent: November 26, 2024
    Assignee: Doosan GridTech, Inc.
    Inventors: Dan Sowder, David Schroeder
  • Patent number: 12034302
    Abstract: Methods and systems are provided for optimizing energy management of an energy resource site. For instance, a hierarchical energy management system can provide optimized management of energy resource sites with large numbers of energy resources. In particular, the hierarchical energy management system can effectively control energy resources by allocating functionality using different tiers. For instance, one or more energy resources devices can comprise the lowest tier of the hierarchical energy management system. The next tier of the hierarchical energy management system can comprise one or more controllers that can manage the energy resource devices. The next tier of the hierarchical energy management system, a resource manager, generally manages the set of controllers.
    Type: Grant
    Filed: February 14, 2022
    Date of Patent: July 9, 2024
    Assignee: Doosan GridTech, Inc.
    Inventors: Nate Diamond, Sam Skrivan, Jacob Hansen, Krysta Suzanne Yousoufian, Paydon Wilinchery
  • Patent number: 11569665
    Abstract: A facility receives an indication of a rate of energy output sought from a production array of solar panels. The facility controls a power inverter to which the production array is connected to deliver to an electrical grid to which the power inverter is connected a rate of energy output that is based on the indicated rate of energy output.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: January 31, 2023
    Assignee: DOOSAN GRIDTECH, INC.
    Inventors: Dan Sowder, David Schroeder
  • Patent number: 11258266
    Abstract: The disclosed system provides an adaptive control system technique generally related to distributed energy resources (DERs) located in distribution circuits. More specifically, the system technique relates to a DER with both active and reactive generation capability. In an embodiment, the system measures a voltage phase angle and a current phase angle of distribution feeder circuit, and measures a voltage value output by a power converter. The system calculates an active power setpoint value and a reactive power setpoint value of the power converter based on the measured voltage value, and the measured voltage phase angle and current phase angle. The system then sets the active and reactive power setpoint values on the power converter. The disclosed system automatically adjusts the setpoints to real-time load characteristics of the distribution feeder circuit, increases distribution feeder hosting capacity, and enables DERs to integrate in distribution feeders more efficiently.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: February 22, 2022
    Assignee: Doosan GridTech, Inc.
    Inventors: Farshid Shariatzadeh, Troy Nergaard, David Kaplan
  • Patent number: 10439401
    Abstract: A facility receives an indication of a rate of energy output sought from a production array of solar panels. The facility controls a power inverter to which the production array is connected to deliver to an electrical grid to which the power inverter is connected a rate of energy output that is based on the indicated rate of energy output.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: October 8, 2019
    Assignee: Doosan GridTech, Inc.
    Inventors: Dan Sowder, David Schroeder
  • Patent number: 9537318
    Abstract: An energy storage system includes modular energy storage equipment that may be connected to an external system, such as a power grid. In at least one embodiment, the energy storage system includes a power transfer control system comprising a power transfer network and a processing module or controller. The power transfer network has a first interface coupleable to one or more energy storage units and a second interface coupleable to one or more power conversion units. One or more conductors in the power transfer network are selectively coupleable to the first interface and the second interface for transferring power between the energy storage units and the power conversion units based at least in part on information indicating a power or energy supply or demand of an external system or information indicating an amount of energy stored in the energy storage units. The energy storage system is scalable for different implementations.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: January 3, 2017
    Assignee: Doosan GridTech, Inc.
    Inventors: David L. Kaplan, Joshua I. Kaplan, Gregory P. Darlington