Patents by Inventor Saed Ehsani

Saed Ehsani 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: 10161261
    Abstract: To identify abnormal behavior in a turbine blade, a failure detection system generates a “fingerprint” for each blade on a turbine. The fingerprint may be a grouping a dynamic, physical characteristics of the blade such as its mass, strain ratio, damping ratio, and the like. While the turbine is operating, the failure detection system receives updated sensor information that is used to determine the current characteristics of the blade. If the current characteristics deviate from the characteristics in the blade's fingerprint, the failure detection system may compare the characteristics of the blade that deviates from the fingerprint to characteristics of another blade on the turbine. If the current characteristics of the blade are different from the characteristics of the other blade, the failure detection system may change the operational mode of the turbine such as disconnecting the turbine from the utility grid or stopping the rotor.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: December 25, 2018
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Saed Ehsani, Erik Carl Lehnskov Miranda, Ib Svend Olesen, Martin Møller Sørensen
  • Patent number: 9556852
    Abstract: This invention relates to a method and a power plant controller arranged to carry out the method. The method is on an intelligent dispatching of the power production to wind turbines and optional compensation equipment of a wind power plant, as the power producing units of a wind power plant. The invention relates to a case where the requested produced power (both active and reactive) is less than the total capacity of the power plant, and the invention relates to utilizing this situation to dispatch set points to the wind turbines and the compensation equipment based on correction factors relating to the operating conditions of the wind park. This method may increase the wind turbines' life time, help in scheduling maintenance and expand the electrical operating range of the wind power plant.
    Type: Grant
    Filed: September 3, 2013
    Date of Patent: January 31, 2017
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Mehrdad Babazadeh, Saed Ehsani, Martin Ansbjerg Kjær, Henrik B. Møller
  • Patent number: 9407186
    Abstract: This invention relates to a method and a power plant controller arranged to carry out the method. The method is on an intelligent dispatching of the power production to wind turbines and optional compensation equipment of a wind power plant, as the power producing units of a wind power plant. The invention relates to a case where the requested produced power is less than the total capacity of the power plant, and the invention relates to utilizing this situation to dispatch set points to the wind turbines and the compensation equipment in a flexible way. This flexibility may increase the wind turbines' life time, help in scheduling maintenance and expand the electrical operating range of the wind power plant. The determination of the set points on active and reactive power is a combined determination of both set points for each of the energy producing units of the wind power plant.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: August 2, 2016
    Assignee: Vestas Wind Systems, A/S
    Inventors: Mehrdad Babazadeh, Saed Ehsani, Martin Ansbjerg Kjær, Henrik B. Møller
  • Publication number: 20150354402
    Abstract: To identify abnormal behavior in a turbine blade, a failure detection system generates a “fingerprint” for each blade on a turbine. The fingerprint may be a grouping a dynamic, physical characteristics of the blade such as its mass, strain ratio, damping ratio, and the like. While the turbine is operating, the failure detection system receives updated sensor information that is used to determine the current characteristics of the blade. If the current characteristics deviate from the characteristics in the blade's fingerprint, the failure detection system may compare the characteristics of the blade that deviates from the fingerprint to characteristics of another blade on the turbine. If the current characteristics of the blade are different from the characteristics of the other blade, the failure detection system may change the operational mode of the turbine such as disconnecting the turbine from the utility grid or stopping the rotor.
    Type: Application
    Filed: February 14, 2013
    Publication date: December 10, 2015
    Inventors: Saed EHSANI, Erik Carl Lehnskov MIRANDA, Ib Svend OLESEN, Martin Møller SØRENSEN
  • Publication number: 20150275862
    Abstract: This invention relates to a method and a power plant controller arranged to carry out the method. The method is on an intelligent dispatching of the power production to wind turbines and optional compensation equipment of a wind power plant, as the power producing units of a wind power plant. The invention relates to a case where the requested produced power (both active and reactive) is less than the total capacity of the power plant, and the invention relates to utilizing this situation to dispatch set points to the wind turbines and the compensation equipment based on correction factors relating to the operating conditions of the wind park. This method may increase the wind turbines' life time, help in scheduling maintenance and expand the electrical operating range of the wind power plant.
    Type: Application
    Filed: September 3, 2013
    Publication date: October 1, 2015
    Inventors: Mehrdad Babazadeh, Saed Ehsani, Martin Ansbjerg Kjær, Henrik Møller
  • Publication number: 20150249415
    Abstract: This invention relates to a method and a power plant controller arranged to carry out the method. The method is on an intelligent dispatching of the power production to wind turbines and optional compensation equipment of a wind power plant, as the power producing units of a wind power plant. The invention relates to a case where the requested produced power is less than the total capacity of the power plant, and the invention relates to utilizing this situation to dispatch set points to the wind turbines and the compensation equipment in a flexible way. This flexibility may increase the wind turbines' life time, help in scheduling maintenance and expand the electrical operating range of the wind power plant. The determination of the set points on active and reactive power is a combined determination of both set points for each of the energy producing units of the wind power plant.
    Type: Application
    Filed: September 5, 2013
    Publication date: September 3, 2015
    Inventors: Mehrdad Babazadeh, Saed Ehsani, Martin Ansbjerg Kjær, Henrik B. Møller
  • Patent number: 7601929
    Abstract: A system for detecting an alignment of a sensor mounted on a vehicle and a method of making the same is disclosed. The system includes a vehicle windshield having the sensor mounted thereto at a predetermined location. At least one conductive strip is included having a first and a second end, wherein the conductive strip is attached to the windshield. The system further includes at least one conductive point disposed between the windshield and the sensor and mounted at the first and the second end. The conductive point establishes a closed circuit between the conductive strip and the sensor so long as the sensor is mounted to the windshield at the predetermined location. Upon displacement of the sensor from the predetermined location, an open circuit occurs between the conductive strip and the conductive point. Accordingly, the sensor generates signals indicating the misalignment of the sensor.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: October 13, 2009
    Assignee: Ford Global Technologies, LLC
    Inventors: Saed Ehsani, Gyu Myeong Joh, Hubert Szawarski
  • Publication number: 20070114218
    Abstract: A system for detecting an alignment of a sensor mounted on a vehicle and a method of making the same is disclosed. The system includes a vehicle windshield having the sensor mounted thereto at a predetermined location. At least one conductive strip is included having a first and a second end, wherein the conductive strip is attached to the windshield. The system further includes at least one conductive point disposed between the windshield and the sensor and mounted at the first and the second end. The conductive point establishes a closed circuit between the conductive strip and the sensor so long as the sensor is mounted to the windshield at the predetermined location. Upon displacement of the sensor from the predetermined location, an open circuit occurs between the conductive strip and the conductive point. Accordingly, the sensor generates signals indicating the misalignment of the sensor.
    Type: Application
    Filed: November 21, 2005
    Publication date: May 24, 2007
    Applicant: Ford Global Technologies, LLC
    Inventors: Saed Ehsani, Gyu Myeong Joh, Hubert Szawarski