Patents by Inventor Ilia Voloh
Ilia Voloh 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: 11411389Abstract: Systems, methods, and computer-readable media are disclosed for identifying a fault using systems and methods for a controlled dynamic MHO characteristic. Particularly, the systems and methods described herein may automatically control the dynamic expansion of the MHO characteristic based on the estimation of uncontrolled dynamic MHO expansion estimation and maximum allowable expansion set by a user. This may provide flexibility in that, the MHO can be allowed to expand to a maximum level, when the estimated MHO expansion value is below the user defined maximum allowable expansion level, but also provides a controlled dynamic MHO when the estimated values are above the maximum allowable level.Type: GrantFiled: March 15, 2021Date of Patent: August 9, 2022Assignee: General Electric Technology GmbHInventors: Venkatesh Chakrapani, Ilia Voloh
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Publication number: 20220173587Abstract: A protection and monitoring system, device, and method for an electric power system, including a capacitor bank having multiple strings in each phase, voltage and current measuring devices, and relays to protect this capacitor bank. Each string can have multiple capacitor units and each unit can consist of multiple capacitor elements. The method may include: determining steady state operating condition using the obtained current and voltages, calculating and storing present time impedance value of each string into memory, calculating the string per unit impedance incremental quantity, detecting capacitor element failure based at least in part on this incremental quantity and calculating number of failed capacitor elements for each event, accumulating the number of failed capacitor elements, and performing a protection action when healthy capacitor elements are subject to an overvoltage limit.Type: ApplicationFiled: November 27, 2020Publication date: June 2, 2022Applicant: General Electric CompanyInventors: Hessamoddin JOUYBARI MOGHADDAM, Ilia VOLOH
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Patent number: 11336084Abstract: A protection and monitoring system, device, and method for an electric power system, including a capacitor bank having multiple strings in each phase, voltage and current measuring devices, and relays to protect this capacitor bank. Each string can have multiple capacitor units and each unit can consist of multiple capacitor elements. The method may include: determining steady state operating condition using the obtained current and voltages, calculating and storing present time impedance value of each string into memory, calculating the string per unit impedance incremental quantity, detecting capacitor element failure based at least in part on this incremental quantity and calculating number of failed capacitor elements for each event, accumulating the number of failed capacitor elements, and performing a protection action when healthy capacitor elements are subject to an overvoltage limit.Type: GrantFiled: November 27, 2020Date of Patent: May 17, 2022Assignee: General Electric Technology GmbHInventors: Hessamoddin Jouybari Moghaddam, Ilia Voloh
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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
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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
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Patent number: 9837812Abstract: An example method of operating a power distribution system including a plurality of source and tie circuit protection devices coupled between at least one source and a protection zone is disclosed. The protection zone includes a distribution bus and a plurality of feeder circuit protection devices coupled between the distribution bus and a plurality of loads. The method includes determining an electric current flowing through each source and tie circuit protection device, determining whether any of the feeder circuit protection devices is outputting a ZSI blocking signal, and controlling operation of the plurality of source and tie circuit protection devices according to an enhanced partial differential protection scheme based on a combination of the determined currents through the source and tie circuit protection devices and the determination of whether any of the feeder circuit protection devices is outputting a ZSI blocking signal.Type: GrantFiled: November 20, 2014Date of Patent: December 5, 2017Assignee: General Electric CompanyInventors: Marcelo Esteban Valdes, Ilia Voloh
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Patent number: 9800088Abstract: An electronic device configured to switchover power from a primary source to an alternate source to maintain continuity of power supplied to a load bus. The electronic device includes one or more processors configured to identify availability of the alternate source using source monitoring in order to measure and calculate a tracking frequency for controlling a variable sampling interval of the one or more processors. The processors are configured to store signal samples and associated time stamps into a variable length buffer and store new sample values and associated new time stamps into the fixed length buffer. The processors are configured to determine attributes from samples of the alternate source using the tracking frequency. The processors are configured to execute a source switchover signal when the primary source is unavailable based by comparing load bus attributes to alternate source attributes at an estimated instance of switchover.Type: GrantFiled: March 30, 2015Date of Patent: October 24, 2017Assignee: General Electric CompanyInventors: Ilia Voloh, Mitalkumar G. Kanabar, Tarlochan Sidhu, Mohammad Dadash Zadeh, Amin Zamani
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Patent number: 9673994Abstract: One embodiment describes a non-transitory tangible computer-readable medium storing a plurality of instructions executable by a processor of an electronic device in a wide area monitoring system. The instructions include instructions to receive a synchro-command from the wide area monitoring system via a network interface, in which the synchro-command is time synchronized with a global clock by a time stamp encoded on the synchro-command; accept or reject the synchro-command with an input handler based at least in part on a sender ID and a receiver ID encoded on the synchro-command; schedule execution of a control command encoded on the synchro-command with a synchro-command manager based at least in part on a scheduler time encoded on the synchro-command; and execute the control command encoded on the synchro-command with the processor based at least in part on an application ID encoded on the synchro-command.Type: GrantFiled: January 20, 2014Date of Patent: June 6, 2017Assignee: General Electric CompanyInventors: Mitalkumar G. Kanabar, Ilia Voloh, Sridevi Mutnuri, Ihab Hamour
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Patent number: 9488681Abstract: Systems, methods, and apparatus for providing a synchronized phasor in power system based on voltage and current measurements, sampling of the voltage and current measurements and convolving the samples with a function.Type: GrantFiled: January 27, 2012Date of Patent: November 8, 2016Assignee: General Electric CompanyInventors: Oleksandr Korovin, Ilia Voloh, Zhiying Zhang, Sridevi Mutnuri, Ihab Hamour
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Publication number: 20160294212Abstract: An electronic device configured to switchover power from a primary source to an alternate source to maintain continuity of power supplied to a load bus. The electronic device includes one or more processors configured to identify availability of the alternate source using source monitoring in order to measure and calculate a tracking frequency for controlling a variable sampling interval of the one or more processors. The processors are configured to store signal samples and associated time stamps into a variable length buffer and store new sample values and associated new time stamps into the fixed length buffer. The processors are configured to determine attributes from samples of the alternate source using the tracking frequency. The processors are configured to execute a source switchover signal when the primary source is unavailable based by comparing load bus attributes to alternate source attributes at an estimated instance of switchover.Type: ApplicationFiled: March 30, 2015Publication date: October 6, 2016Applicant: General Electric CompanyInventors: Ilia Voloh, Mitalkumar G. Kanabar, Tarlochan Sidhu, Mohammad Dadash Zadeh, Amin Zamani
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Patent number: 9442152Abstract: A fault location system for a distribution network is disclosed. The fault location system includes at least one sensor and a fault location evaluation apparatus. The at least one sensor is located on the distribution network, for sensing current and dividing the distribution network into at least two regions. The fault location evaluation apparatus includes a fault region determination unit for determining which one of the at least two regions is a fault region where a fault occurs therein by calculating the sensed current from the at least one sensor.Type: GrantFiled: August 13, 2014Date of Patent: September 13, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Zhilin Wu, Ilia Voloh, Lihan He, Zhihan Xu
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Publication number: 20160149393Abstract: An example method of operating a power distribution system including a plurality of source and tie circuit protection devices coupled between at least one source and a protection zone is disclosed. The protection zone includes a distribution bus and a plurality of feeder circuit protection devices coupled between the distribution bus and a plurality of loads. The method includes determining an electric current flowing through each source and tie circuit protection device, determining whether any of the feeder circuit protection devices is outputting a ZSI blocking signal, and controlling operation of the plurality of source and tie circuit protection devices according to an enhanced partial differential protection scheme based on a combination of the determined currents through the source and tie circuit protection devices and the determination of whether any of the feeder circuit protection devices is outputting a ZSI blocking signal.Type: ApplicationFiled: November 20, 2014Publication date: May 26, 2016Inventors: Marcelo Esteban Valdes, Ilia Voloh
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Patent number: 9350163Abstract: A device includes interface circuitry. The interface circuitry receives first input signals related to measurements of characteristics of electricity passing through a first power line. The device includes filtering circuitry that filters the first input signals to generate filtered data. The device also includes a processor that estimates an oscillation frequency of the filtered data via a time-domain frequency estimation method.Type: GrantFiled: October 19, 2011Date of Patent: May 24, 2016Assignee: General Electric CompanyInventors: Zhiying Zhang, Ilia Voloh, Jorge Eduardo Cardenas Medina
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Patent number: 9276396Abstract: Systems configured to analyze and/or respond to faults detected during the operation of a power transmission system are disclosed. In one embodiment, a system includes at least one computing device adapted to monitor operation of a power transmission system by performing actions comprising processing operational data from a set of line phases in the power transmission system to detect a faulted line phase; opening a circuit breaker for the faulted line phase in response to detecting the fault; determining whether the fault is transient or permanent; and determining if an arc associated with the fault has been extinguished.Type: GrantFiled: February 17, 2012Date of Patent: March 1, 2016Assignee: General Electric CompanyInventors: Mohammad Reza Dadash Zadeh, Ilia Voloh, Mitalkumar Gulabrai Kanabar
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Publication number: 20150207645Abstract: One embodiment describes a non-transitory tangible computer-readable medium storing a plurality of instructions executable by a processor of an electronic device in a wide area monitoring system. The instructions include instructions to receive a synchro-command from the wide area monitoring system via a network interface, in which the synchro-command is time synchronized with a global clock by a time stamp encoded on the synchro-command; accept or reject the synchro-command with an input handler based at least in part on a sender ID and a receiver ID encoded on the synchro-command; schedule execution of a control command encoded on the synchro-command with a synchro-command manager based at least in part on a scheduler time encoded on the synchro-command; and execute the control command encoded on the synchro-command with the processor based at least in part on an application ID encoded on the synchro-command.Type: ApplicationFiled: January 20, 2014Publication date: July 23, 2015Applicant: General Electric CompanyInventors: Mitalkumar G. Kanabar, Ilia Voloh, Sridevi Mutnuri, Ihab Hamour
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Publication number: 20150048841Abstract: A fault location system for a distribution network is disclosed. The fault location system includes at least one sensor and a fault location evaluation apparatus. The at least one sensor is located on the distribution network, for sensing current and dividing the distribution network into at least two regions. The fault location evaluation apparatus includes a fault region determination unit for determining which one of the at least two regions is a fault region where a fault occurs therein by calculating the sensed current from the at least one sensor.Type: ApplicationFiled: August 13, 2014Publication date: February 19, 2015Inventors: Lihan He, Ilia Voloh, Zhilin Wu, Zhihan Xu
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Publication number: 20130218359Abstract: Systems configured to analyze and/or respond to faults detected during the operation of a power transmission system are disclosed. In one embodiment, a system includes: at least one computing device adapted to monitor operation of a power transmission system by performing actions comprising: processing operational data from a set of line phases in the power transmission system to detect a faulted line phase; opening a circuit breaker for the faulted line phase in response to detecting the fault; determining whether the fault is transient or permanent; and determining if an arc associated with the fault has been extinguished.Type: ApplicationFiled: February 17, 2012Publication date: August 22, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Mohammad Reza Dadash Zadeh, Ilia Voloh, Mitalkumar Gulabrai Kanabar
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Publication number: 20130193951Abstract: Systems, methods, and apparatus for providing a synchronized phasor in power system based on voltage and current measurements, sampling of the voltage and current measurements and convolving the samples with a function.Type: ApplicationFiled: January 27, 2012Publication date: August 1, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Oleksandr Korovin, Ilia Voloh, Zhiying Zhang, Sridevi Mutnuri, Ihab Hamour
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Patent number: 7126800Abstract: A method for compensating for communications channel delay asymmetry in a current differential protection system includes determining an apparent sampling clock offset for a communications channel, the apparent sampling clock offset between a first sampling clock and a second sampling clock configured within the current differential protection system. An apparent global positioning system (GPS) clock offset is determined for the communications channel, the apparent GPS clock offset between a plurality of GPS time stamps corresponding to the first and said second sampling clocks. A compensated clock offset is determined by subtracting the apparent GPS clock offset from the apparent sampling clock offset so as to cancel out a channel asymmetry component of deviation in the apparent GPS and sampling clock off-sets.Type: GrantFiled: September 10, 2003Date of Patent: October 24, 2006Assignee: General Electric CompanyInventors: William J Premerlani, Bogdan Kasztenny, Ilia Voloh
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Publication number: 20050036254Abstract: A method for compensating for communications channel delay asymmetry in a current differential protection system includes determining an apparent sampling clock offset for a communications channel, the apparent sampling clock offset between a first sampling clock and a second sampling clock configured within the current differential protection system. An apparent global positioning system (GPS) clock offset is determined for the communications channel, the apparent GPS clock offset between a plurality of GPS time stamps corresponding to the first and said second sampling clocks. A compensated clock offset is determined by subtracting the apparent GPS clock offset from the apparent sampling clock offset so as to cancel out a channel asymmetry component of deviation in the apparent GPS and sampling clock off-sets.Type: ApplicationFiled: September 10, 2003Publication date: February 17, 2005Applicant: GENERAL ELECTRIC COMPANYInventors: William Premerlani, Bogdan Kasztenny, Ilia Voloh