Patents by Inventor Antonis Marinopoulos

Antonis Marinopoulos 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: 10389123
    Abstract: A method for controlling power in a microgrid that includes power sources, loads and at least one connection to a main grid where a transformer is arranged to transfer electric power between the microgrid and the main grid is disclosed. The method includes: monitoring the power balance within the microgrid; monitoring the transformer, including monitoring the transformer temperature; and detecting a need for overloading the transformer based on the power balance within the microgrid. Especially, the method includes: determining a load profile for the transformer based on the power balance within the microgrid; determining a prognosis of the transformer temperature based on the load profile; and determining a schedule for power control of the microgrid, which determining of a schedule for power control includes analyzing the prognosis of the transformer temperature.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: August 20, 2019
    Assignee: ABB Schweiz AG
    Inventors: Robert Saers, Ritwik Majumder, Antonis Marinopoulos
  • Publication number: 20190027932
    Abstract: A method for controlling power in a microgrid that includes power sources, loads and at least one connection to a main grid where a transformer is arranged to transfer electric power between the microgrid and the main grid is disclosed. The method includes: monitoring the power balance within the microgrid; monitoring the transformer, including monitoring the transformer temperature; and detecting a need for overloading the transformer based on the power balance within the microgrid. Especially, the method includes: determining a load profile for the transformer based on the power balance within the microgrid; determining a prognosis of the transformer temperature based on the load profile; and determining a schedule for power control of the microgrid, which determining of a schedule for power control includes analyzing the prognosis of the transformer temperature.
    Type: Application
    Filed: March 3, 2016
    Publication date: January 24, 2019
    Applicant: ABB Schweiz AG
    Inventors: Robert SAERS, Ritwik MAJUMDER, Antonis MARINOPOULOS
  • Publication number: 20180301903
    Abstract: A method of controlling a microgrid arrangement including a microgrid having a plurality of switches, and a plurality of Distributed Generators arranged for being connected to the microgrid. The method includes obtaining information about the microgrid arrangement. The method also includes, based on the obtained information, dynamically linking a first group of switches, of the plurality of switches, to each other. The method also includes detecting an event in the microgrid, and in response to the detection, automatically opening closed switches in the first group, whereby a first segment of the microgrid is disconnected from a second segment of the microgrid.
    Type: Application
    Filed: December 11, 2015
    Publication date: October 18, 2018
    Inventors: Ritwik Majumder, Antonis Marinopoulos
  • Patent number: 9748772
    Abstract: A solar power plant including a power conversion system and a method of controlling the power conversion system. Implemented in a DC/AC inverter, the plant includes photovoltaic modules (PV modules) arranged in arrays connected to a respective DC/DC converters. A power collecting grid interfaces between the DC/DC converters and the DC/AC inverter. The method includes monitoring the performance of each PV array by adjusting the voltage level of each interface between a PV array and the corresponding DC/DC converter, and includes monitoring the output power of each DC/DC converter as a feedback for the regulating.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: August 29, 2017
    Assignee: ABB Schweiz AG
    Inventors: Panagiotis Bakas, Sara Ahmed, Michal Lazarczyk, Radoslaw Nalepa, Antonis Marinopoulos, Dimitrios Doukas, Jyoti Sastry
  • Patent number: 9276407
    Abstract: A power system includes a power generating plant including a plurality of power generators, and an AC collection grid adapted to interconnect the power generating plant and an HVDC converter station. The AC collection grid is adapted to operate outside network regulations, whereby advantages such as simplified control and electronics are achieved. A method of operating a power system is also provided.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: March 1, 2016
    Assignee: ABB RESEARCH LTD
    Inventors: Staffan Norrga, Antonis Marinopoulos, Konstantinos Papastergiou, Panagiotis Bakas
  • Publication number: 20150372490
    Abstract: A solar power plant including a power conversion system and a method of controlling the power conversion system. Implemented in a DC/AC inverter, the plant includes photovoltaic modules (PV modules) arranged in arrays connected to a respective DC/DC converters. A power collecting grid interfaces between the DC/DC converters and the DC/AC inverter. The method includes monitoring the performance of each PV array by adjusting the voltage level of each interface between a PV array and the corresponding DC/DC converter, and includes monitoring the output power of each DC/DC converter as a feedback for the regulating.
    Type: Application
    Filed: February 14, 2013
    Publication date: December 24, 2015
    Inventors: Panagiotis Bakas, Sara Ahmed, Michal Lazarczyk, Radoslaw Nalepa, Antonis Marinopoulos, Dimitrios Doukas, Jyoti Sastry
  • Publication number: 20150115721
    Abstract: A power system includes a power generating plant including a plurality of power generators, and an AC collection grid adapted to interconnect the power generating plant and an HVDC converter station. The AC collection grid is adapted to operate outside network regulations, whereby advantages such as simplified control and electronics are achieved. A method of operating a power system is also provided.
    Type: Application
    Filed: June 5, 2012
    Publication date: April 30, 2015
    Applicant: ABB RESEARCH LTD
    Inventors: Staffan Norrga, Antonis Marinopoulos, Konstantinos Papastergiou, Panagiotis Bakas
  • Publication number: 20140336833
    Abstract: A system for producing electrical power based on wind energy is capable of predicting its power output. The system includes a set of wind turbine units, a first plurality of sensors each adapted to sense at least one wind characteristic at some of the wind turbine units, and a second plurality of sensors remotely located. At least one wind characteristic is estimated at the wind turbines not having one of the first plurality of sensors based on sensing by the first plurality of sensors and an estimate of changes in wind characteristic at wind turbine units caused by presence of other wind turbine units. The magnitude of electrical power production by the set of wind turbine units at at least one predefined point in time in the future is predicted based on the estimated wind characteristics and sensed wind characteristics.
    Type: Application
    Filed: July 25, 2014
    Publication date: November 13, 2014
    Inventors: Antonis Marinopoulos, Heinz Lendenmann, Jiuping Pan, Kailash Srivastava, Mahyar Zarghami, Muhamad Reza
  • Patent number: 8823307
    Abstract: A system, method and computer program product for monitoring including detecting internal faults especially inter-turn faults of a synchronous generator and thus protecting the synchronous generator. The synchronous generator includes a winding for each phase of a power network, a terminal for each phase arranged on a terminal side of the synchronous generator, and connected to the respective winding, the terminals on the terminal side are connected to an electrical power network, and the synchronous generator is arranged to input power to the electrical power network by means of the terminals.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: September 2, 2014
    Assignee: ABB Research Ltd.
    Inventors: Zoran Gajic, Mustafa Ibrahim, Antonis Marinopoulos, Pedro Rodriguez, Jianping Wang, Liwei Wang
  • Publication number: 20140117912
    Abstract: A system, method and computer program product for monitoring including detecting internal faults especially inter-turn faults of a synchronous generator and thus protecting the synchronous generator. The synchronous generator includes a winding for each phase of a power network, a terminal for each phase arranged on a terminal side of the synchronous generator, and connected to the respective winding, the terminals on the terminal side are connected to an electrical power network, and the synchronous generator is arranged to input power to the electrical power network by means of the terminals.
    Type: Application
    Filed: January 3, 2014
    Publication date: May 1, 2014
    Inventors: Zoran Gajic, Mustafa Ibrahim, Antonis Marinopoulos, Pedro Rodriguez, Jianping Wang, Liwei Wang