Patents by Inventor Dmitry Ishchenko

Dmitry Ishchenko has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12162369
    Abstract: Network constraint energy management system for electric vehicle (EV) depot charging and scheduling. In an embodiment, a power schedule is received from an economic dispatch application for a charging depot comprising EV charging station(s) and distributed energy resource(s). The power schedule may be simulated on a distribution network model of the charging depot, according to load flow analysis, to determine whether any grid-code violations occur. In response to the detection of violation(s), a constraint may be generated for each violating node, and the economic dispatch application may be re-executed with the constraint(s) to produce a new power schedule, until no violations are detected. When not all load demand can be satisfied by the power schedule, a charging schedule may be adjusted to ensure that critical energy requirements are satisfied. The final power and charging schedules may be used to schedule and control power generation and charging in the charging depot.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: December 10, 2024
    Assignee: HITACHI ENERGY LTD
    Inventors: Faeza Hafiz, Dmitry Ishchenko
  • Patent number: 12149070
    Abstract: Systems, methods, techniques and apparatuses of nested microgrids are disclosed. One exemplary embodiment is a method for removing false data in a nested microgrid system, the method comprising: calculating a first local state estimation using a first plurality of local measurements and a second local state estimation using a second plurality of local measurements; calculating, with a central control system, a plurality of global state estimations including a first global state estimation a second global state estimation; performing a first false data detection test using the first local state estimation and one global state estimation of the plurality of global state estimations; performing a second false data detection test using the first global state estimation and the second global state estimation; detecting false data; and updating the first global state estimation, the second global state estimation, or the first local state estimation in response to detecting the false data.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: November 19, 2024
    Assignee: Hitachi Energy Ltd.
    Inventors: Junho Hong, Dmitry Ishchenko, Reynaldo Nuqui
  • Publication number: 20230382260
    Abstract: As the use of renewable energy resources increases within charging infrastructures, the risk that charging an additional load within the charging infrastructure will create a violation of the applicable grid code also increases. In an embodiment, a charging location is selected for an incoming load based on a load flow analysis, to thereby mitigate the risk of a violation. This selection process may also account for the charging schedule of the load and the capacity of available charging stations (e.g., fast charging vs. slow charging).
    Type: Application
    Filed: May 27, 2022
    Publication date: November 30, 2023
    Inventors: Faeza HAFIZ, Dmitry ISHCHENKO, Pablo ALMALECK
  • Publication number: 20230275963
    Abstract: Systems, methods, techniques and apparatuses of asynchronous communication is distributed systems are disclosed. One exemplary embodiment is a method determining, with a plurality of agent nodes structured to communicate asynchronously in a distributed system, a first set of iterations including an iteration determined by each of the plurality of agent nodes; determining, with a first agent node of the plurality of agent nodes, a local vector clock; receiving, with the first agent node, a first iteration of the first set of iterations and a remote vector clock determined based on the first iteration; updating, with the first agent node, the local vector clock based on the received remote vector clock; and determining a first iteration of a second set of iterations based on the first set of iterations after determining all iterations of the first set of iterations have been received based on the local vector clock.
    Type: Application
    Filed: May 3, 2023
    Publication date: August 31, 2023
    Inventors: Mehmet H. Cintuglu, Dmitry Ishchenko
  • Patent number: 11728640
    Abstract: Systems and methods for fault detection and protection in electric power systems that evaluates electromagnetic transients caused by faults. A fault can be detected using sampled data from a first monitored point in the power system. Detection of fault transients and associated characteristics, including transient direction, can also be extracted through evaluation of sample data from other monitored points in the power system. A monitoring device can evaluate whether to trip a switching device in response to the detection of the fault and based on confirmation of an indication of detection of fault transients at the other monitored points of the power system. The determination of whether to trip or activate the switching device can also be based on other factors, including the timing of receipt of an indication of the detection of the fault transients and/or an evaluation of the characteristics of the detected transients.
    Type: Grant
    Filed: April 2, 2020
    Date of Patent: August 15, 2023
    Assignee: HITACHI ENERGY SWITZERLAND AG
    Inventors: Tao Cui, Reynaldo Nuqui, Dmitry Ishchenko, Zhenyuan Wang
  • Patent number: 11689618
    Abstract: Systems, methods, techniques and apparatuses of asynchronous communication is distributed systems are disclosed. One exemplary embodiment is a method determining, with a plurality of agent nodes structured to communicate asynchronously in a distributed system, a first set of iterations including an iteration determined by each of the plurality of agent nodes; determining, with a first agent node of the plurality of agent nodes, a local vector clock; receiving, with the first agent node, a first iteration of the first set of iterations and a remote vector clock determined based on the first iteration; updating, with the first agent node, the local vector clock based on the received remote vector clock; and determining a first iteration of a second set of iterations based on the first set of iterations after determining all iterations of the first set of iterations have been received based on the local vector clock.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: June 27, 2023
    Assignee: HITACHI ENERGY SWITZERLAND AG
    Inventors: Mehmet H. Cintuglu, Dmitry Ishchenko
  • Publication number: 20230182605
    Abstract: Network constraint energy management system for electric vehicle (EV) depot charging and scheduling. In an embodiment, a power schedule is received from an economic dispatch application for a charging depot comprising EV charging station(s) and distributed energy resource(s). The power schedule may be simulated on a distribution network model of the charging depot, according to load flow analysis, to determine whether any grid-code violations occur. In response to the detection of violation(s), a constraint may be generated for each violating node, and the economic dispatch application may be re-executed with the constraint(s) to produce a new power schedule, until no violations are detected. When not all load demand can be satisfied by the power schedule, a charging schedule may be adjusted to ensure that critical energy requirements are satisfied. The final power and charging schedules may be used to schedule and control power generation and charging in the charging depot.
    Type: Application
    Filed: December 15, 2021
    Publication date: June 15, 2023
    Inventors: Faeza HAFIZ, Dmitry ISHCHENKO
  • Patent number: 11327123
    Abstract: A method includes detecting a fault in a grid coupled to a distribution power network, the distribution power network comprising a distribution feeder, a plurality of distributed energy resources (DERs) coupled to the distribution feeder and a reference point of applicability (RPA) associated with the plurality of DERs, and in response to detecting the fault, determining an error voltage at the RPA, converting the error voltage into an error signal, broadcasting the error signal to the plurality of DERs, and based on the error signal, reducing the error voltage at the RPA by injecting a plurality of currents from the plurality of DERs to the distribution feeder.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: May 10, 2022
    Assignee: Hitachi Energy Switzerland AG
    Inventors: Mehmet H. Cintuglu, Dmitry Ishchenko
  • Publication number: 20220099754
    Abstract: A method includes detecting a fault in a grid coupled to a distribution power network, the distribution power network comprising a distribution feeder, a plurality of distributed energy resources (DERs) coupled to the distribution feeder and a reference point of applicability (RPA) associated with the plurality of DERs, and in response to detecting the fault, determining an error voltage at the RPA, converting the error voltage into an error signal, broadcasting the error signal to the plurality of DERs, and based on the error signal, reducing the error voltage at the RPA by injecting a plurality of currents from the plurality of DERs to the distribution feeder.
    Type: Application
    Filed: September 28, 2020
    Publication date: March 31, 2022
    Inventors: Mehmet H. Cintuglu, Dmitry Ishchenko
  • Patent number: 11121537
    Abstract: An intelligent fuse provides the operational status of the power network upon which the fuse is installed to a mobile device of a remote user. A fuse electronic circuit embedded in the fuse holder of the fuse captures the characteristic values of the power network and transmits the data to the mobile device. The mobile device has an application installed thereon to calculate the distance to fault location from the recording fuse using the fuse electronic circuit-captured data. The fuse electronic circuit-captured data is further used to visualize the data collected at the measurement points of the electrical system upon which the fuse is installed.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: September 14, 2021
    Assignee: ABB Schweiz AG
    Inventors: James D. Stoupis, Bernhard Deck, Mirrasoul Mousavi, Dmitry Ishchenko
  • Publication number: 20210194955
    Abstract: Systems, methods, techniques and apparatuses of asynchronous communication is distributed systems are disclosed. One exemplary embodiment is a method determining, with a plurality of agent nodes structured to communicate asynchronously in a distributed system, a first set of iterations including an iteration determined by each of the plurality of agent nodes; determining, with a first agent node of the plurality of agent nodes, a local vector clock; receiving, with the first agent node, a first iteration of the first set of iterations and a remote vector clock determined based on the first iteration; updating, with the first agent node, the local vector clock based on the received remote vector clock; and determining a first iteration of a second set of iterations based on the first set of iterations after determining all iterations of the first set of iterations have been received based on the local vector clock.
    Type: Application
    Filed: December 18, 2019
    Publication date: June 24, 2021
    Inventors: Mehmet H. Cintuglu, Dmitry Ishchenko
  • Patent number: 10892938
    Abstract: Systems, methods, techniques and apparatuses for managing distributed applications of networked intelligent agents are disclosed. The agents are operably to autonomously discover semantic profiles and associated data of other agents in a networked system participating in a given application. The agents need not be in direct communication with or known to all the other agents in the networked system.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: January 12, 2021
    Assignee: ABB Power Grids Switzerland AG
    Inventors: Alexander Brissette, Mehmet H. Cintuglu, Dmitry Ishchenko
  • Publication number: 20200358283
    Abstract: Systems and methods for fault detection and protection in electric power systems that evaluates electromagnetic transients caused by faults. A fault can be detected using sampled data from a first monitored point in the power system. Detection of fault transients and associated characteristics, including transient direction, can also be extracted through evaluation of sample data from other monitored points in the power system. A monitoring device can evaluate whether to trip a switching device in response to the detection of the fault and based on confirmation of an indication of detection of fault transients at the other monitored points of the power system. The determination of whether to trip or activate the switching device can also be based on other factors, including the timing of receipt of an indication of the detection of the fault transients and/or an evaluation of the characteristics of the detected transients.
    Type: Application
    Filed: April 2, 2020
    Publication date: November 12, 2020
    Inventors: Tao Cui, Reynaldo Nuqui, Dmitry Ishchenko, Zhenyuan Wang
  • Publication number: 20200194991
    Abstract: An intelligent fuse provides the operational status of the power network upon which the fuse is installed to a mobile device of a remote user. A fuse electronic circuit embedded in the fuse holder of the fuse captures the characteristic values of the power network and transmits the data to the mobile device. The mobile device has an application installed thereon to calculate the distance to fault location from the recording fuse using the fuse electronic circuit-captured data. The fuse electronic circuit-captured data is further used to visualize the data collected at the measurement points of the electrical system upon which the fuse is installed.
    Type: Application
    Filed: September 24, 2019
    Publication date: June 18, 2020
    Inventors: James D. Stoupis, Bernhard Deck, Mirrasoul Mousavi, Dmitry Ishchenko
  • Patent number: 10651645
    Abstract: Systems and methods for fault detection and protection in electric power systems that evaluates electromagnetic transients caused by faults. A fault can be detected using sampled data from a first monitored point in the power system. Detection of fault transients and associated characteristics, including transient direction, can also be extracted through evaluation of sample data from other monitored points in the power system. A monitoring device can evaluate whether to trip a switching device in response to the detection of the fault and based on confirmation of an indication of detection of fault transients at the other monitored points of the power system. The determination of whether to trip or activate the switching device can also be based on other factors, including the timing of receipt of an indication of the detection of the fault transients and/or an evaluation of the characteristics of the detected transients.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: May 12, 2020
    Assignee: ABB Inc.
    Inventors: Tao Cui, Reynaldo Nuqui, Dmitry Ishchenko, Zhenyuan Wang
  • Patent number: 10622805
    Abstract: Unique systems, methods, techniques and apparatuses of a power grid control system. One exemplary embodiment is a nested microgrid system comprising a first microgrid including a network controller, a second microgrid, a third microgrid, a first restoration path selectively coupled between the second portion of the first microgrid and the second microgrid, and a second restoration path selectively coupled between the second portion of the first microgrid and the third microgrid. The network controller is configured isolate the first portion of the first microgrid from the second portion of the first microgrid, calculate weighting factors for the first and second restoration paths, select the first restoration path using the first weighting factor and the second weighting factor, and couple the second portion of the first microgrid to the second microgrid using the first restoration path.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: April 14, 2020
    Assignee: ABB SCHWEIZ AG
    Inventors: Dmitry Ishchenko, Junho Hong, Anil Kondabathini, Abrez Mondal
  • Publication number: 20200106301
    Abstract: Systems, methods, techniques and apparatuses of nested microgrids are disclosed. One exemplary embodiment is a method for removing false data in a nested microgrid system, the method comprising: calculating a first local state estimation using a first plurality of local measurements and a second local state estimation using a second plurality of local measurements; calculating, with a central control system, a plurality of global state estimations including a first global state estimation a second global state estimation; performing a first false data detection test using the first local state estimation and one global state estimation of the plurality of global state estimations; performing a second false data detection test using the first global state estimation and the second global state estimation; detecting false data; and updating the first global state estimation, the second global state estimation, or the first local state estimation in response to detecting the false data.
    Type: Application
    Filed: October 1, 2018
    Publication date: April 2, 2020
    Inventors: Junho Hong, Dmitry Ishchenko, Reynaldo Nuqui
  • Publication number: 20200099252
    Abstract: Systems, methods, techniques and apparatuses of networked microgrids are disclosed.
    Type: Application
    Filed: September 26, 2018
    Publication date: March 26, 2020
    Inventors: Mehmet H. Cintuglu, Dmitry Ishchenko
  • Patent number: 10483754
    Abstract: Unique systems, methods, techniques and apparatuses of a power grid control system. One exemplary embodiment is a microgrid comprising a plurality of switching devices, a plurality of distribution line segments, a plurality of measuring devices, each measuring device corresponding to one of the plurality of switching devices, and a network controller. The network controller is configured to: receive measurements from the plurality of measurement devices, determine a fault is occurring within the microgrid using the measurements, assign a topology classification to each of the plurality of distribution line segments, assign a proximity classification to each of the plurality of distribution line segments, determine fault location using the topology classification and the proximity classification, and isolate the fault by transmitting open commands to the two switching devices of the plurality of switching devices closest to the fault.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: November 19, 2019
    Assignee: ABB Schweiz AG
    Inventors: Junho Hong, Anil Kondabathini, Dmitry Ishchenko
  • Patent number: 10424909
    Abstract: An intelligent fuse provides the operational status of the power network upon which the fuse is installed to a mobile device of a remote user. A fuse electronic circuit embedded in the fuse holder of the fuse captures the characteristic values of the power network and transmits the data to the mobile device. The mobile device has an application installed thereon to calculate the distance to fault location from the recording fuse using the fuse electronic circuit-captured data. The fuse electronic circuit-captured data is further used to visualize the data collected at the measurement points of the electrical system upon which the fuse is installed.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: September 24, 2019
    Assignee: ABB Schweiz AG
    Inventors: James D. Stoupis, Bernhard Deck, Mirrasoul Mousavi, Dmitry Ishchenko