Patents by Inventor Mustafa Tekin Dokucu
Mustafa Tekin Dokucu 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).
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Publication number: 20230385186Abstract: According to some embodiments, a system, method and non-transitory computer-readable medium are provided to protect a cyber-physical system having a plurality of monitoring nodes comprising: a normal space data source storing, for each of the plurality of monitoring nodes, a series of normal monitoring node values over time that represent normal operation of the cyber-physical system; a situational awareness module including an abnormal data generation platform, wherein the abnormal data generation platform is operative to generate abnormal data to represent abnormal operation of the cyber-physical system using values in the normal space data source and a generative model; a memory for storing program instructions; and a situational awareness processor, coupled to the memory, and in communication with the situational awareness module and operative to execute the program instructions to: receive a data signal, wherein the received data signal is an aggregation of data signals received from one or more of the pType: ApplicationFiled: May 22, 2023Publication date: November 30, 2023Inventors: Hema K Achanta, Masoud Abbaszadeh, Weizhong Yan, Mustafa Tekin Dokucu
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Patent number: 11790081Abstract: Systems and methods are provided for the control of an industrial asset, such as a power generating asset. Accordingly, a cyber-attack model predicts a plurality of operational impacts on the industrial asset resulting from a plurality of potential cyber-attacks. The cyber-attack model also predicts a corresponding plurality of potential mitigation responses. In operation, a cyber-attack impacting at least one component of the industrial asset is detected via the cyber-attack neutralization module and a protected operational impact of the cyber-attack is identified based on the cyber-attack model. The cyber-attack neutralization module selects at least one mitigation response of the plurality of mitigation responses based on the predicted operational impact and an operating state of the industrial asset is altered based on the selected mitigation response.Type: GrantFiled: April 14, 2021Date of Patent: October 17, 2023Assignee: General Electric CompanyInventors: Fernando Javier D'Amato, Mustafa Tekin Dokucu, Hema Kumari Achanta, III, Kalpesh Singal, Masoud Abbaszadeh, Yuh-Shyang Wang, Karla Kvaternik, Souransu Nandi, Georgios Boutselis
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Publication number: 20230296078Abstract: A method for providing backup control for a supervisory controller of at least one wind turbine includes observing, via a learning-based backup controller of the at least one wind turbine, at least one operating parameter of the supervisory controller under normal operation. The method also includes learning, via the learning-based backup controller, one or more control actions of the at least one wind turbine based on the operating parameter(s). Further, the method includes receiving, via the learning-based backup controller, an indication that the supervisory controller is unavailable to continue the normal operation. Upon receipt of the indication, the method includes controlling, via the learning-based backup controller, the wind turbine(s) using the learned one or more control actions until the supervisory controller becomes available again. Moreover, the control action(s) defines a delta that one or more setpoints of the wind turbine(s) should be adjusted by to achieve a desired outcome.Type: ApplicationFiled: March 18, 2022Publication date: September 21, 2023Inventors: Kalpesh Singal, Mustafa Tekin Dokucu, Fernando Javier D′Amato, Georgios Boutselis
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Patent number: 11729190Abstract: An industrial asset may have monitoring nodes that generate current monitoring node values. A dynamic, resilient estimator may split a temporal monitoring node space into normal and one or more abnormal subspaces associated with different kinds of attack vectors. According to some embodiments, a neutralization model is constructed and trained for each attack vector using supervised learning and the associated abnormal subspace. In other embodiments, a single model is created using out-of-range values for abnormal monitoring nodes. Responsive to an indication of a particular abnormal monitoring node or nodes, the system may automatically invoke the appropriate neutralization model to determine estimated values of the particular abnormal monitoring node or nodes (e.g., by selecting the correct model or using out-of-range values). The series of current monitoring node values from the abnormal monitoring node or nodes may then be replaced with the estimated values.Type: GrantFiled: October 29, 2019Date of Patent: August 15, 2023Assignee: GENERAL ELECTRIC COMPANYInventors: Subhrajit Roychowdhury, Masoud Abbaszadeh, Mustafa Tekin Dokucu
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Patent number: 11693763Abstract: According to some embodiments, a system, method and non-transitory computer-readable medium are provided to protect a cyber-physical system having a plurality of monitoring nodes comprising: a normal space data source storing, for each of the plurality of monitoring nodes, a series of normal monitoring node values over time that represent normal operation of the cyber-physical system; a situational awareness module including an abnormal data generation platform, wherein the abnormal data generation platform is operative to generate abnormal data to represent abnormal operation of the cyber-physical system using values in the normal space data source and a generative model; a memory for storing program instructions; and a situational awareness processor, coupled to the memory, and in communication with the situational awareness module and operative to execute the program instructions to: receive a data signal, wherein the received data signal is an aggregation of data signals received from one or more of the pType: GrantFiled: July 30, 2019Date of Patent: July 4, 2023Assignee: General Electric CompanyInventors: Hema K Achanta, Masoud Abbaszadeh, Weizhong Yan, Mustafa Tekin Dokucu
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Patent number: 11487598Abstract: An industrial asset may have a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time representing current operation of the industrial asset. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing a fault. An autonomous, resilient estimator may continuously execute an adaptive learning process to create or update virtual sensor models for that monitoring node. Responsive to an indication that a monitoring node is currently being attacked or experiencing a fault, a level of neutralization may be automatically determined. The autonomous, resilient estimator may then be dynamically reconfigured to estimate a series of virtual node values based on information from normal monitoring nodes, appropriate virtual sensor models, and the determined level of neutralization.Type: GrantFiled: September 18, 2019Date of Patent: November 1, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: Masoud Abbaszadeh, Mustafa Tekin Dokucu, Justin Varkey John
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Publication number: 20220334540Abstract: Systems and methods are provided for the control of an industrial asset, such as a power generating asset. Accordingly, a cyber-attack model predicts a plurality of operational impacts on the industrial asset resulting from a plurality of potential cyber-attacks. The cyber-attack model also predicts a corresponding plurality of potential mitigation responses. In operation, a cyber-attack impacting at least one component of the industrial asset is detected via the cyber-attack neutralization module and a protected operational impact of the cyber-attack is identified based on the cyber-attack model. The cyber-attack neutralization module selects at least one mitigation response of the plurality of mitigation responses based on the predicted operational impact and an operating state of the industrial asset is altered based on the selected mitigation response.Type: ApplicationFiled: April 14, 2021Publication date: October 20, 2022Inventors: Fernando Javier D'Amato, Mustafa Tekin Dokucu, Hema Kumari Achanta, III, Kalpesh Singal, Masoud Abbaszadeh, Yuh-Shyang Wang, Karla Kvaternik, Souransu Nandi, Georgios Boutselis
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Patent number: 11468164Abstract: An industrial asset may have monitoring nodes (e.g., sensor or actuator nodes) that generate current monitoring node values. An abnormality detection and localization computer may receive the series of current monitoring node values and output an indication of at least one abnormal monitoring node that is currently being attacked or experiencing a fault. An actor-critic platform may tune a dynamic, resilient state estimator for a sensor node and output tuning parameters for a controller that improve operation of the industrial asset during the current attack or fault. The actor-critic platform may include, for example, a dynamic, resilient state estimator, an actor model, and a critic model. According to some embodiments, a value function of the critic model is updated for each action of the actor model and each action of the actor model is evaluated by the critic model to update a policy of the actor-critic platform.Type: GrantFiled: December 11, 2019Date of Patent: October 11, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: Subhrajit Roychowdhury, Masoud Abbaszadeh, Mustafa Tekin Dokucu
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Patent number: 11411983Abstract: An industrial asset may have monitoring nodes that generate current monitoring node values. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing fault. A dynamic, resilient estimator constructs, using normal monitoring node values, a latent feature space (of lower dimensionality as compared to a temporal space) associated with latent features. The system also constructs, using normal monitoring node values, functions to project values into the latent feature space. Responsive to an indication that a node is currently being attacked or experiencing fault, the system may compute optimal values of the latent features to minimize a reconstruction error of the nodes not currently being attacked or experiencing a fault. The optimal values may then be projected back into the temporal space to provide estimated values and the current monitoring node values from the abnormal monitoring node are replaced with the estimated values.Type: GrantFiled: October 16, 2019Date of Patent: August 9, 2022Assignee: GENERAL ELECTRIC COMPANYInventors: Mustafa Tekin Dokucu, Subhrajit Roychowdhury, Olugbenga Anubi, Masoud Abbaszadeh, Justin Varkey John
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Patent number: 11343266Abstract: Methods and systems for self-certifying secure operation of a cyber-physical system having a plurality of monitoring nodes. In an embodiment, an artificial intelligence (AI) watchdog computer platform obtains, using the output of a local features extraction process of time series data of a plurality of monitoring nodes of a cyber-physical system and a global features extraction process, global features extraction data. The AI watchdog computer platform then obtains reduced dimensional data, generates an updated decision boundary, compares the updated decision boundary to a certification manifold, determines based on the comparison that the updated decision boundary is certified, and determines, based on an anomaly detection process, whether the cyber-physical system is behaving normally or abnormally.Type: GrantFiled: June 10, 2019Date of Patent: May 24, 2022Assignee: General Electric CompanyInventors: Masoud Abbaszadeh, Hema K. Achanta, Mustafa Tekin Dokucu, Matthew Nielsen, Justin Varkey John
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Publication number: 20210399546Abstract: A dynamic simulation engine, having system parameters, may be provided for a component of an electrical power system (e.g., a generator, wind turbine, etc.). A model parameter tuning engine may receive, from a measurement data store, measurement data measured by an electrical power system measurement unit (e.g., a phasor measurement unit or digital fault recorder measuring a disturbance event). The model parameter tuning engine may then pre-condition the measurement data and set-up an optimization problem based on a result of the pre-conditioning. The system parameters of the dynamic simulation engine may be determined by solving the optimization problem with an iterative method until at least one convergence criteria is met. According to some embodiments, solving the optimization problem includes a Jacobian approximation that does not call the dynamic simulation engine if an improvement of residual meets a pre-defined criteria.Type: ApplicationFiled: November 5, 2018Publication date: December 23, 2021Inventors: Anup MENON, Chaitanya Ashok BAONE, Honggang WANG, Mustafa Tekin DOKUCU
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Patent number: 11067592Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to perform prognostic health monitoring of a turbine engine.Type: GrantFiled: November 10, 2017Date of Patent: July 20, 2021Assignee: General Electric CompanyInventors: William Edwin Hurst, Mei Gao, Vivek Gandhi, Donald Horn, Gregory Jon Chiaramonte, Katherine Tharp Nowicki, Steven Richard Levin, Michael William Bailey, Ronald Plybon, Mustafa Tekin Dokucu, Aditya Kumar
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Patent number: 11070584Abstract: A procedure for neutralizing an attack on a control system of an industrial asset includes detecting an anomaly in a first sensor node associated with a first unit operating in a first operational mode, and receiving time series data associated with the first sensor node. A subset of the time series data is provided to each of a plurality of virtual sensor models A first virtual sensor model is selected from among a plurality of virtual sensor models based upon the subset of the time series data received by each of the plurality of virtual sensor models. A first confidence level of the first virtual sensor is determined. Responsive to determining that the first confidence level is below a first confidence level threshold, the first unit is transferred to a second operational mode using sensor readings associated with a second sensor node of a second unit of the industrial asset.Type: GrantFiled: January 6, 2020Date of Patent: July 20, 2021Assignee: GENERAL ELECTRIC COMPANYInventors: Honggang Wang, Masoud Abbaszadeh, Mustafa Tekin Dokucu
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Publication number: 20210211455Abstract: A procedure for neutralizing an attack on a control system of an industrial asset includes detecting an anomaly in a first sensor node associated with a first unit operating in a first operational mode, and receiving time series data associated with the first sensor node. A subset of the time series data is provided to each of a plurality of virtual sensor models A first virtual sensor model is selected from among a plurality of virtual sensor models based upon the subset of the time series data received by each of the plurality of virtual sensor models. A first confidence level of the first virtual sensor is determined. Responsive to determining that the first confidence level is below a first confidence level threshold, the first unit is transferred to a second operational mode using sensor readings associated with a second sensor node of a second unit of the industrial asset.Type: ApplicationFiled: January 6, 2020Publication date: July 8, 2021Inventors: Honggang Wang, Masoud Abbaszadeh, Mustafa Tekin Dokucu
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Publication number: 20210182385Abstract: An industrial asset may have monitoring nodes (e.g., sensor or actuator nodes) that generate current monitoring node values. An abnormality detection and localization computer may receive the series of current monitoring node values and output an indication of at least one abnormal monitoring node that is currently being attacked or experiencing a fault. An actor-critic platform may tune a dynamic, resilient state estimator for a sensor node and output tuning parameters for a controller that improve operation of the industrial asset during the current attack or fault. The actor-critic platform may include, for example, a dynamic, resilient state estimator, an actor model, and a critic model. According to some embodiments, a value function of the critic model is updated for each action of the actor model and each action of the actor model is evaluated by the critic model to update a policy of the actor-critic platform.Type: ApplicationFiled: December 11, 2019Publication date: June 17, 2021Inventors: Subhrajit Roychowdhury, Masoud Abbaszadeh, Mustafa Tekin Dokucu
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Publication number: 20210126943Abstract: An industrial asset may have monitoring nodes that generate current monitoring node values. A dynamic, resilient estimator may split a temporal monitoring node space into normal and one or more abnormal subspaces associated with different kinds of attack vectors. According to some embodiments, a neutralization model is constructed and trained for each attack vector using supervised learning and the associated abnormal subspace. In other embodiments, a single model is created using out-of-range values for abnormal monitoring nodes. Responsive to an indication of a particular abnormal monitoring node or nodes, the system may automatically invoke the appropriate neutralization model to determine estimated values of the particular abnormal monitoring node or nodes (e.g., by selecting the correct model or using out-of-range values). The series of current monitoring node values from the abnormal monitoring node or nodes may then be replaced with the estimated values.Type: ApplicationFiled: October 29, 2019Publication date: April 29, 2021Inventors: Subhrajit Roychowdhury, Masoud Abbaszadeh, Mustafa Tekin Dokucu
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Publication number: 20210120031Abstract: An industrial asset may have monitoring nodes that generate current monitoring node values. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing fault. A dynamic, resilient estimator constructs, using normal monitoring node values, a latent feature space (of lower dimensionality as compared to a temporal space) associated with latent features. The system also constructs, using normal monitoring node values, functions to project values into the latent feature space. Responsive to an indication that a node is currently being attacked or experiencing fault, the system may compute optimal values of the latent features to minimize a reconstruction error of the nodes not currently being attacked or experiencing a fault. The optimal values may then be projected back into the temporal space to provide estimated values and the current monitoring node values from the abnormal monitoring node are replaced with the estimated values.Type: ApplicationFiled: October 16, 2019Publication date: April 22, 2021Inventors: Mustafa Tekin Dokucu, Subhrajit Roychowdhury, Olugbenga Anubi, Masoud Abbaszadeh, Justin Varkey John
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Patent number: 10954812Abstract: A flutter control system for a turbine includes a processor. The processor is configured to detect blade flutter of a turbine. The blade flutter indicates that blades of the turbine are in a deflected position different from a nominal operating position. The processor is configured to control operational parameters of the turbine that reduce or eliminate the blade flutter to improve the reliability and efficiency of the turbine.Type: GrantFiled: December 11, 2015Date of Patent: March 23, 2021Assignee: General Electric CompanyInventors: William Forrester Seely, Xu Fu, Mustafa Tekin Dokucu, Ronghui Zhou
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Publication number: 20210081270Abstract: An industrial asset may have a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time representing current operation of the industrial asset. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing a fault. An autonomous, resilient estimator may continuously execute an adaptive learning process to create or update virtual sensor models for that monitoring node. Responsive to an indication that a monitoring node is currently being attacked or experiencing a fault, a level of neutralization may be automatically determined. The autonomous, resilient estimator may then be dynamically reconfigured to estimate a series of virtual node values based on information from normal monitoring nodes, appropriate virtual sensor models, and the determined level of neutralization.Type: ApplicationFiled: September 18, 2019Publication date: March 18, 2021Inventors: Masoud ABBASZADEH, Mustafa Tekin DOKUCU, Justin Varkey JOHN
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Publication number: 20210084056Abstract: An industrial asset may have a plurality of monitoring nodes, each monitoring node generating a series of monitoring node values over time representing current operation of the industrial asset. An abnormality detection computer may determine that an abnormal monitoring node is currently being attacked or experiencing a fault. Responsive to an indication that a monitoring node is currently being attacked or experiencing a fault, the system may automatically replace monitoring node values from the at least one abnormal monitoring node currently being attacked or experiencing a fault with virtual node values. The system may also determine when the abnormal monitoring node or nodes will switch from the virtual node values back to monitoring node values.Type: ApplicationFiled: September 18, 2019Publication date: March 18, 2021Inventors: Masoud ABBASZADEH, Mustafa Tekin DOKUCU, Justin Varkey JOHN