Patents by Inventor Harjeet Johal
Harjeet Johal 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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Patent number: 9979192Abstract: An electrical power system includes an electrical power distribution network and a control device configured to regulate at least one attribute of said electrical power system. The electrical power system further includes a processor coupled to the control device configured to identify an out-of-bound condition on said electrical power distribution network at a first time. The out-of-bound condition is associated with the at least one attribute. The processor is also configured to determine a trend for the at least one attribute at a second time that is later than the first time after a predetermined delay time elapses. The trend indicates a direction away from at least one of a predetermined range and a predetermined value. The processor is also configured to transmit a control action to said control device based at least in part on the trend.Type: GrantFiled: July 29, 2014Date of Patent: May 22, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Miaolei Shao, Harjeet Johal, Jovan Z. Bebic, Naresh Acharya
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Publication number: 20160036229Abstract: An electrical power system includes an electrical power distribution network and a control device configured to regulate at least one attribute of said electrical power system. The electrical power system further includes a processor coupled to the control device configured to identify an out-of-bound condition on said electrical power distribution network at a first time. The out-of-bound condition is associated with the at least one attribute. The processor is also configured to determine a trend for the at least one attribute at a second time that is later than the first time after a predetermined delay time elapses. The trend indicates a direction away from at least one of a predetermined range and a predetermined value. The processor is also configured to transmit a control action to said control device based at least in part on the trend.Type: ApplicationFiled: July 29, 2014Publication date: February 4, 2016Inventors: Miaolei Shao, Harjeet Johal, Jovan Z. Bebic, Naresh Acharya
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Patent number: 9252633Abstract: A system for accelerated assessment of operational uncertainties in an electrical power distribution system includes a plurality of utility assets, and a distribution analysis (“DA”) system. DA system includes a preparation module configured to identify a first network model and a reduced network model for the electrical power distribution system. DA system also includes an input module configured to identify a plurality of scenarios, and a reduced-model-analysis module configured to analyze the reduced network model using the plurality of scenarios, generating a first set of results, and to select a subset of scenarios based on the first set of results. DA system further includes a full-model-analysis module configured to analyze the first network model using the subset of scenarios, generating a second set of results. DA system also includes a command module configured to dispatch configuration commands to utility assets based on the second set of results.Type: GrantFiled: December 21, 2012Date of Patent: February 2, 2016Assignee: General Electric CompanyInventors: Naresh Acharya, Jovan Z. Bebic, Harjeet Johal, Kathleen Ann O'Brien
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Publication number: 20150364920Abstract: Provided is a power plant that is connected to a transmission grid. The power plant includes a synchronous generator and a synchronous condenser connected in parallel. The power plant is configured to increase the rotor angle stability of the synchronous generator to ride through fault conditions and frequency deviations on the transmission grid.Type: ApplicationFiled: June 11, 2014Publication date: December 17, 2015Inventors: Ryan James Konopinski, John Paul Skliutas, Murray Alan Eitzmann, Harjeet Johal
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Patent number: 9041246Abstract: A phase balancing system includes a load forecasting module, a phase unbalance identification module and a demand response module. The load forecasting module determines a load forecast for the distribution system for the period of interest and the phase unbalance identification module determines voltage unbalance on the distribution system for the period of interest. The demand response module estimates an available demand response on the distribution system for the period of interest and allocates an optimized demand response from the available demand response to minimize the voltage unbalance on the distribution system for the period of interest.Type: GrantFiled: September 29, 2010Date of Patent: May 26, 2015Assignee: General Electric CompanyInventors: Jason Wayne Black, Kannan Natarajan Tinnium, Ronald Ray Larson, Xiaofeng Wang, Harjeet Johal
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Patent number: 9006925Abstract: A protection system for a power distribution system includes a bus voltage sensing unit to measure a bus voltage or a load voltage and a demand response module for estimating available demand resources on the distribution system for a period of interest. A distribution system analyzer is provided in the system for analyzing the bus voltage or the load voltage and system parameters to obtain voltage trip points for the available demand resources. A load control circuit controls the available demand resources based on the voltage trip points.Type: GrantFiled: May 31, 2011Date of Patent: April 14, 2015Assignee: General Electric CompanyInventors: Jason Wayne Black, Harjeet Johal, Zhenhua Jiang, David Joseph Najewicz
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Publication number: 20140180663Abstract: A system for accelerated assessment of operational uncertainties in an electrical power distribution system includes a plurality of utility assets, and a distribution analysis (“DA”) system. DA system includes a preparation module configured to identify a first network model and a reduced network model for the electrical power distribution system. DA system also includes an input module configured to identify a plurality of scenarios, and a reduced-model-analysis module configured to analyze the reduced network model using the plurality of scenarios, generating a first set of results, and to select a subset of scenarios based on the first set of results. DA system further includes a full-model-analysis module configured to analyze the first network model using the subset of scenarios, generating a second set of results. DA system also includes a command module configured to dispatch configuration commands to utility assets based on the second set of results.Type: ApplicationFiled: December 21, 2012Publication date: June 26, 2014Applicant: General Electric CompanyInventors: Naresh Acharya, Jovan Z. Bebic, Harjeet Johal, Kathleen Ann O'Brien
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Publication number: 20130321040Abstract: A frequency regulation system includes a sensor to detect a power grid signal and a frequency deviation identification module to determine a power grid frequency deviation from the power grid signal. A demand response module identifies an operating schedule for available demand response resources based on frequency deviation set points and ramp rates and a load control module controls the available demand response resources based on the operating schedule.Type: ApplicationFiled: May 31, 2012Publication date: December 5, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Harjeet Johal, Krishna Kumar Anaparthi, Jason Wayne Black
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Patent number: 8600573Abstract: A system and method for simultaneously restoring power to loads in a distribution network that experienced an outage. The pickup load on the feeder in the distribution network is estimated and the load limit on the feeder is determined. The load on the feeder is divided into groups based on the load limit. A restoration load control process is determined, and power is restored to each of the groups simultaneously based on the power restoration control process.Type: GrantFiled: December 17, 2010Date of Patent: December 3, 2013Assignee: General Electric CompanyInventors: Jason Wayne Black, Harjeet Johal, Devon Leigh Manz, Reigh Allen Walling, William Jerome Burke
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Publication number: 20120310430Abstract: A protection system for a power distribution system includes a bus voltage sensing unit to measure a bus voltage or a load voltage and a demand response module for estimating available demand resources on the distribution system for a period of interest. A distribution system analyzer is provided in the system for analyzing the bus voltage or the load voltage and system parameters to obtain voltage trip points for the available demand resources. A load control circuit controls the available demand resources based on the voltage trip points.Type: ApplicationFiled: May 31, 2011Publication date: December 6, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Jason Wayne Black, Harjeet Johal, Zhenhua Jiang, David Joseph Najewicz
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Publication number: 20120158198Abstract: A system and method for simultaneously restoring power to loads in a distribution network that experienced an outage. The pickup load on the feeder in the distribution network is estimated and the load limit on the feeder is determined. The load on the feeder is divided into groups based on the load limit. A restoration load control process is determined, and power is restored to each of the groups simultaneously based on the power restoration control process.Type: ApplicationFiled: December 17, 2010Publication date: June 21, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Jason Wayne Black, Harjeet Johal, Devon Leigh Manz, Reigh Allen Walling, William Jerome Burke
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Publication number: 20120074779Abstract: A phase balancing system includes a load forecasting module, a phase unbalance identification module and a demand response module. The load forecasting module determines a load forecast for the distribution system for the period of interest and the phase unbalance identification module determines voltage unbalance on the distribution system for the period of interest. The demand response module estimates an available demand response on the distribution system for the period of interest and allocates an optimized demand response from the available demand response to minimize the voltage unbalance on the distribution system for the period of interest.Type: ApplicationFiled: September 29, 2010Publication date: March 29, 2012Applicant: GENERAL ELECTRIC COMPANYInventors: Jason Wayne Black, Kannan Natarajan Tinnium, Ronald Ray Larson, Xiaofeng Wang, Harjeet Johal
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Patent number: 7835128Abstract: Systems and methods for implementing line overload control via providing distributed series impedance are disclosed. One system, amongst others, comprises at least one distributed series reactor (DSR). Each DSR comprises a single turn transformer (SST) comprising two split-core sections (132), a winding (120), and an air-gap (138), the air-gap designed such that a magnetizing inductance is produced when the two split-core sections (132) are clamped around a conductor (108). Each DSR further comprises a contact switch (122) that short circuits the winding when the contact switch (122) is in a closed condition, a power supply (128) that derives power from conductor line current, and a controller (130) configured to open the contact switch when the conductor line current reaches a predetermined value, thus causing insertion of the magnetizing inductance into the conductor.Type: GrantFiled: January 30, 2006Date of Patent: November 16, 2010Assignee: Georgia Tech Research CorporationInventors: Deepakraj Malhar Divan, Harjeet Johal
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Publication number: 20080310069Abstract: Systems and methods for implementing line overload control via providing distributed series impedance are disclosed. One system, amongst others, comprises at least one distributed series reactor (DSR). Each DSR comprises a single turn transformer (SST) comprising two split-core sections (132), a winding (120), and an air-gap (138), the air-gap designed such that a magnetizing inductance is produced when the two split-core sections (132) are clamped around a conductor (108). Each DSR further comprises a contact switch (122) that short circuits the winding when the contact switch (122) is in a closed condition, a power supply (128) that derives power from conductor line current, and a controller (130) configured to open the contact switch when the conductor line current reaches a predetermined value, thus causing insertion of the magnetizing inductance into the conductor.Type: ApplicationFiled: January 30, 2006Publication date: December 18, 2008Inventors: Deepakraj Malhar Divan, Harjeet Johal