Patents by Inventor Mark Gerard Adamiak
Mark Gerard Adamiak 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: 10983150Abstract: Various embodiments described in this disclosure pertain to methods and systems for detecting and evaluating oscillations in an electrical power grid. The oscillations can include one or more oscillatory conditions, which can occur in one or more of five predefined frequency bands. Each of the five predefined frequency bands is categorized at least in part, by oscillations that are originated by uniquely different sources. In one embodiment, an oscillation detector can be used to detect the oscillatory condition and determine a magnitude characteristic, a phase characteristic, and/or a damping characteristic of at least one oscillation frequency that contributes to the oscillatory condition.Type: GrantFiled: August 28, 2017Date of Patent: April 20, 2021Assignee: General Electric Technology GmbHInventors: Zhiying Zhang, Ilia Voloh, Mark Gerard Adamiak
-
Patent number: 10254323Abstract: A monitoring system includes a capacitor can having one or more capacitors. The monitoring system includes an antenna. The monitoring system includes at least one sensor disposed within the capacitor can and configured to detect an operating characteristic associated with health of the one or more capacitors of the capacitor can. The monitoring system includes a processor configured to receive a first signal from the at least one sensor indicative of the operating characteristic. The processor is configured to send a second signal, via the antenna, indicative of a value of the operating characteristic to a receiving device outside of the capacitor can.Type: GrantFiled: June 30, 2016Date of Patent: April 9, 2019Assignee: GENERAL ELECTRIC COMPANYInventors: Ertugrul Berkcan, Mark Gerard Adamiak, Karim Younsi, Sachin N. Dekate, Kamala C. Raghavan
-
Publication number: 20190064232Abstract: Various embodiments described in this disclosure pertain to methods and systems for detecting and evaluating oscillations in an electrical power grid. The oscillations can include one or more oscillatory conditions, which can occur in one or more of five predefined frequency bands. Each of the five predefined frequency bands is categorized at least in part, by oscillations that are originated by uniquely different sources. In one embodiment, an oscillation detector can be used to detect the oscillatory condition and determine a magnitude characteristic, a phase characteristic, and/or a damping characteristic of at least one oscillation frequency that contributes to the oscillatory condition.Type: ApplicationFiled: August 28, 2017Publication date: February 28, 2019Inventors: Zhiying Zhang, Ilia Voloh, Mark Gerard Adamiak
-
Publication number: 20180003751Abstract: A monitoring system includes a capacitor can having one or more capacitors. The monitoring system includes an antenna. The monitoring system includes at least one sensor disposed within the capacitor can and configured to detect an operating characteristic associated with health of the one or more capacitors of the capacitor can. The monitoring system includes a processor configured to receive a first signal from the at least one sensor indicative of the operating characteristic. The processor is configured to send a second signal, via the antenna, indicative of a value of the operating characteristic to a receiving device outside of the capacitor can.Type: ApplicationFiled: June 30, 2016Publication date: January 4, 2018Inventors: Ertugrul Berkcan, Mark Gerard Adamiak, Karim Younsi, Sachin N. Dekate, Kamala Raghavan
-
Patent number: 9684700Abstract: A system includes a Synchrophasor Data Management System (SDMS), in which the SDMS includes a Synchrophasor Processor System (SPS). The SPS includes a Phasor Data Concentrator (PDC) configured to receive a first plurality of inputs from a first Phasor Measurement Unit (PMU), transform at least one of the first plurality of inputs into a first time aligned output by time aligning the at least one of the first plurality of inputs. The SPS further includes a virtual PMU configured to aggregate the first time aligned output into a PMU dataset, in which the SPS is configured to transmit the PMU dataset to a second PMU, an external PDC, a super PDC, or a combination thereof.Type: GrantFiled: February 29, 2016Date of Patent: June 20, 2017Assignee: General Electric CompanyInventors: Mitalkumar Gulabrai Kanabar, Oscar Lopez Aguirre, Rodrigo Gutierrez Argandona, Jason Antonio Rodrigues, Mark Gerard Adamiak
-
Publication number: 20160253396Abstract: A system includes a Synchrophasor Data Management System (SDMS), in which the SDMS includes a Synchrophasor Processor System (SPS). The SPS includes a Phasor Data Concentrator (PDC) configured to receive a first plurality of inputs from a first Phasor Measurement Unit (PMU), transform at least one of the first plurality of inputs into a first time aligned output by time aligning the at least one of the first plurality of inputs. The SPS further includes a virtual PMU configured to aggregate the first time aligned output into a PMU dataset, in which the SPS is configured to transmit the PMU dataset to a second PMU, an external PDC, a super PDC, or a combination thereof.Type: ApplicationFiled: February 29, 2016Publication date: September 1, 2016Inventors: Mitalkumar Gulabrai Kanabar, Oscar Lopez Aguirre, Rodrigo Gutierrez Argandona, Jason Antonio Rodrigues, Mark Gerard Adamiak
-
Patent number: 9274150Abstract: A system includes a Synchrophasor Data Management System (SDMS), in which the SDMS includes a Synchrophasor Processor System (SPS). The SPS includes a Phasor Data Concentrator (PDC) configured to receive a first plurality of inputs from a first Phasor Measurement Unit (PMU), transform at least one of the first plurality of inputs into a first time aligned output by time aligning the at least one of the first plurality of inputs. The SPS further includes a virtual PMU configured to aggregate the first time aligned output into a PMU dataset, in which the SPS is configured to transmit the PMU dataset to a second PMU, an external PDC, a super PDC, or a combination thereof.Type: GrantFiled: December 9, 2012Date of Patent: March 1, 2016Assignee: General Electric CompanyInventors: Mitalkumar Gulabrai Kanabar, Oscar Lopez Aguirre, Rodrigo Gutierrez Argandona, Jason Antonio Rodrigues, Mark Gerard Adamiak
-
Patent number: 9043040Abstract: A method of damping power system oscillations include obtaining a time synchronized damping control signal from a remote location and determining a communication time delay in receiving the time synchronized damping control signal from the remote location. The time synchronized damping control signal is then modified based on a phase compensation factor and an amplitude compensation factor determined from the time delay. Finally, a damping signal is generated based on the modified time synchronized damping control signal.Type: GrantFiled: January 31, 2012Date of Patent: May 26, 2015Assignee: General Electric CompanyInventors: Swakshar Ray, Mark Gerard Adamiak, Amol Rajaram Kolwalkar
-
Publication number: 20140164377Abstract: A system includes a Synchrophasor Data Management System (SDMS), in which the SDMS includes a Synchrophasor Processor System (SPS). The SPS includes a Phasor Data Concentrator (PDC) configured to receive a first plurality of inputs from a first Phasor Measurement Unit (PMU), transform at least one of the first plurality of inputs into a first time aligned output by time aligning the at least one of the first plurality of inputs. The SPS further includes a virtual PMU configured to aggregate the first time aligned output into a PMU dataset, in which the SPS is configured to transmit the PMU dataset to a second PMU, an external PDC, a super PDC, or a combination thereof.Type: ApplicationFiled: December 9, 2012Publication date: June 12, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Mitalkumar Gulabrai Kanabar, Oscar Lopez Aguirre, Rodrigo Gutierrez Argandona, Jason Antonio Rodrigues, Mark Gerard Adamiak
-
Publication number: 20130197705Abstract: A method of damping power system oscillations include obtaining a time synchronized damping control signal from a remote location and determining a communication time delay in receiving the time synchronized damping control signal from the remote location. The time synchronized damping control signal is then modified based on a phase compensation factor and an amplitude compensation factor determined from the time delay. Finally, a damping signal is generated based on the modified time synchronized damping control signal.Type: ApplicationFiled: January 31, 2012Publication date: August 1, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Swakshar Ray, Mark Gerard Adamiak, Amol Rajaram Kolwalkar
-
Patent number: 7444248Abstract: A phasor measurement system is provided for computing synchronized phasor measurements. The phasor measurement system includes acquisition circuitry for acquiring voltage or current values from a power line, sampling circuitry for sampling the voltage or current values, and processing circuitry for computing a phasor and at least one time derivative of the phasor based on the sampled voltage or current values and for computing a synchronized phasor value based on the phasor and the at least one time derivative of the phasor.Type: GrantFiled: April 29, 2005Date of Patent: October 28, 2008Assignee: General Electric CompanyInventors: William James Premerlani, Bogdan Zdzislaw Kasztenny, Mark Gerard Adamiak
-
Patent number: 6571182Abstract: A method of detecting faults on a power transmission line system includes simultaneously measuring phase current samples at each phase of each transmission terminal; calculating real and imaginary phaselets comprising partial sums of the phase current samples; for each phaselet, calculating a respective partial sum of squares of each phase current sample; calculating the sums of the real and imaginary phaselets over a variable size sliding sample window; calculating real and imaginary phasor components from the phaselets and a sum of the partial sums of the squares over the sample window; using the sums of the real and imaginary phaselets, the real and imaginary phasor components, and the sum of the partial sums of the squares to calculate a sum of squares of errors between the phase current samples and a fitted sine wave representative of the real and imaginary phasor components; using the sum of squares of errors to calculate a variance matrix defining an elliptical uncertainty region; determining whether aType: GrantFiled: February 5, 2001Date of Patent: May 27, 2003Assignee: General Electric CompanyInventors: Mark Gerard Adamiak, William James Premerlani
-
Patent number: 6456947Abstract: A method of detecting faults on a power transmission line system includes simultaneously measuring phase current samples at each phase of each transmission terminal; calculating real and imaginary phaselets comprising partial sums of the phase current samples; for each phaselet, calculating a respective partial sum of squares of each phase current sample; calculating the sums of the real and imaginary phaselets over a variable size sliding sample window; calculating real and imaginary phasor components from the phaselets and a sum of the partial sums of the squares over the sample window; using the sums of the real and imaginary phaselets, the real and imaginary phasor components, and the sum of the partial sums of the squares to calculate a sum of squares of errors between the phase current samples and a fitted sine wave representative of the real and imaginary phasor components; using the sum of squares of errors to calculate a variance matrix defining an elliptical uncertainty region; determining whether aType: GrantFiled: October 30, 2000Date of Patent: September 24, 2002Assignee: General Electric CompanyInventors: Mark Gerard Adamiak, George Edmund Alexander, William James Premerlani, Emilie Thorbjorg Saulnier, Birsen Yazici
-
Patent number: 6311307Abstract: A method of detecting faults on a power transmission line system includes simultaneously measuring phase current samples at each phase of each transmission terminal; calculating real and imaginary phaselets comprising partial sums of the phase current samples; for each phaselet, calculating a respective partial sum of squares of each phase current sample; calculating the sums of the real and imaginary phaselets over a variable size sliding sample window; calculating real and imaginary phasor components from the phaselets and a sum of the partial sums of the squares over the sample window; using the sums of the real and imaginary phaselets, the real and imaginary phasor components, and the sum of the partial sums of the squares to calculate a sum of squares of errors between the phase current samples and a fitted sine wave representative of the real and imaginary phasor components; using the sum of squares of errors to calculate a variance matrix defining an elliptical uncertainty region; determining whether aType: GrantFiled: June 25, 1998Date of Patent: October 30, 2001Assignee: General Electric CompanyInventors: Mark Gerard Adamiak, George Edmund Alexander, William James Premerlani, Emilie Thorbjorg Saulnier, Birsen Yazici
-
Publication number: 20010012984Abstract: A method of detecting faults on a power transmission line system includes simultaneously measuring phase current samples at each phase of each transmission terminal; calculating real and imaginary phaselets comprising partial sums of the phase current samples; for each phaselet, calculating a respective partial sum of squares of each phase current sample; calculating the sums of the real and imaginary phaselets over a variable size sliding sample window; calculating real and imaginary phasor components from the phaselets and a sum of the partial sums of the squares over the sample window; using the sums of the real and imaginary phaselets, the real and imaginary phasor components, and the sum of the partial sums of the squares to calculate a sum of squares of errors between the phase current samples and a fitted sine wave representative of the real and imaginary phasor components; using the sum of squares of errors to calculate a variance matrix defining an elliptical uncertainty region; determining whether aType: ApplicationFiled: February 5, 2001Publication date: August 9, 2001Inventors: Mark Gerard Adamiak, George Edmund Alexander, William James Premerlani
-
Patent number: 5809045Abstract: A method of detecting faults on a power transmission line system includes simultaneously measuring phase current samples at each phase of each transmission terminal; calculating real and imaginary phaselets comprising partial sums of the phase current samples; for each phaselet, calculating a respective partial sum of squares of each phase current sample; calculating the sums of the real and imaginary phaselets over a variable size sliding sample window; calculating real and imaginary phasor components from the phaselets and a sum of the partial sums of the squares over the sample window; using the sums of the real and imaginary phaselets, the real and imaginary phasor components, and the sum of the partial sums of the squares to calculate a sum of squares of errors between the phase current samples and a fitted sine wave representative of the real and imaginary phasor components; using the sum of squares of errors to calculate a variance matrix defining an elliptical uncertainty region; determining whether aType: GrantFiled: September 13, 1996Date of Patent: September 15, 1998Assignee: General Electric CompanyInventors: Mark Gerard Adamiak, George Edmund Alexander, William James Premerlani, Emilie Thorbjorg Saulnier, Birsen Yazici
-
Methods and apparatus for removing error due to decaying offsets from measured power system currents
Patent number: 5798932Abstract: A digital decaying current offset correction method and apparatus, in one aspect, separates the requirements of detecting fault existence from the requirements of detecting fault location. Once the decaying offset removal routine is initiated, current and voltage are sampled and, for each current and voltage sample, current and voltage phasors are generated. The current phasor values, which are not offset corrected, may be used to determine whether to trip a breaker. Once the breaker is tripped, the decaying offsets are removed from the current phasors. The offset corrected current phasors are then used to locate the fault.Type: GrantFiled: May 21, 1996Date of Patent: August 25, 1998Assignee: General Electric CompanyInventors: William James Premerlani, Mark Gerard Adamiak, Dingari Sreenivas, Eyyunni Venugopal