Patents by Inventor Manikandan Padmanaban
Manikandan Padmanaban 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: 10408866Abstract: Methods and arrangements for power theft location in an electrical grid. A contemplated method includes: utilizing at least one processor to execute computer code that performs the steps of: receiving an indication of a voltage of a plurality of nodes in the branch of the electrical distribution grid; identifying voltage differences between at least of two of the plurality of the nodes over a predetermined number of days, relative to different time periods within each day, wherein the at least two of the plurality of the nodes are at a known relative position in the branch of the electrical distribution grid; and evaluating the identified voltage differences to determine whether the identified voltage differences satisfy a predetermined criterion indicating no power theft. Other variants and embodiments are broadly contemplated herein.Type: GrantFiled: August 6, 2015Date of Patent: September 10, 2019Assignee: Utopus Insights, Inc.Inventors: Kalyan Kanti Dasgupta, Jagabondhu Hazra, Manikandan Padmanaban
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Patent number: 10410385Abstract: Methods, systems and computer program products for generating hypergraph representations of dialog are provided herein. A computer-implemented method includes analyzing at least one dialog to identify one or more topics and one or more contributions by one or more persons to the one or more topics, tracking evolution of the identified topics over time in the at least one dialog, generating a hypergraph representation of the at least one dialog utilizing the identified topics, the identified contributions and the tracked evolution of the identified topics, and providing an interactive visualization tool based on the hypergraph representation of the at least one dialog.Type: GrantFiled: February 19, 2016Date of Patent: September 10, 2019Assignee: International Business Machines CorporationInventors: Prithu Banerjee, Manikandan Padmanaban, Biplav Srivastava, Srikanth G. Tamilselvam
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Patent number: 10394269Abstract: One embodiment provides a method, including: receiving photovoltaic output from a solar module, the solar module comprising a plurality of solar panels electronically connected together by a plurality of strings, wherein the photovoltaic output corresponding to any given one of the strings is limited by the lowest performing solar panel in said given one of the strings; determining a reflection profile for the solar module, wherein the reflection profile describes an illumination pattern of light incident onto the solar module; and increasing, based upon the determined reflection profile, the photovoltaic output of the solar module to match a requested photovoltaic output, wherein the increasing comprises electrically reassigning one or more solar panels within the solar module from one string to a different string, such that each string electrically ties together solar panels that produce a photovoltaic output within a predetermined range of each other.Type: GrantFiled: November 8, 2017Date of Patent: August 27, 2019Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Kalyan Kanti Dasgupta, Pankaj S. Dayama, Jagabondhu Hazra, Shivkumar Kalyanaraman, Manikandan Padmanaban
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Publication number: 20190242621Abstract: One embodiment provides a method, including: receiving configuration input for a solar structure; the configuration input comprising (i) a geographical location, (ii) module configuration input, and (iii) reflector configuration input; identifying the position of the sun; determining an angle between the solar reflector and the solar module corresponding to a predetermined power gain for the solar module, wherein the determining comprises (i) identifying the corresponding area of the solar module that is illuminated by the solar reflector and (ii) totaling the contributions from each of the solar reflectors to calculate an irradiance for each solar cell; adjusting the angles of at least some of the solar reflectors with respect to the solar module to angles determined to correspond to the predetermined power gain using at least one actuator; and dynamically changing how the solar cells are electrically connected together to form a plurality of strings.Type: ApplicationFiled: February 8, 2018Publication date: August 8, 2019Inventors: Kalyan Kanti Dasgupta, Manikandan Padmanaban, Jagabondhu Hazra, Amar Prakash Azad, Shivkumar Kalyanaraman
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Patent number: 10371862Abstract: A method of receiving a substorm activity data log from one or more remote sensors, where substorm activity is due to solar activity. The method also includes receiving a harmonic distortion data stream from one or more remote observatories monitoring disturbances on a power grid, where the distortion is due to geomagnetically induced currents. The method also includes applying a mathematical model to the harmonic distortion data stream to create a derived harmonic distortion data log, and comparing phase-to-phase similarity of the three phases from the derived harmonic distortion data log. The method also includes predicting future adverse events due to geomagnetically-induced currents on the power grid based at least in part on the comparison and the substorm activity data log, and creating a warning based on the prediction.Type: GrantFiled: February 15, 2017Date of Patent: August 6, 2019Assignees: INTERNATIONAL BUSINESS MACHINES CORPORATION, HYDRO-QUÉBECInventors: Chumki Basu, Luc Cauchon, Sébastien Guillon, Innocent Kamwa, Manikandan Padmanaban
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Publication number: 20190162572Abstract: An indication of water flowing into a fixture and down a drain of the fixture is received. A timer is started. A flow rate and attributes of the water flowing into the fixture are monitored. Attributes of the water flowing through the drain are monitored. A determination is made that the attributes of water flowing into the fixture match, within a threshold, the attributes of water flowing through the drain. A first duration of time of water being wasted is determined. A determination is made that water flowing into the fixture has stopped. A total duration of time of water being wasted, based on at least the first duration of time, is determined. A volume of water being wasted is determined based on the total duration of time and the flow rate.Type: ApplicationFiled: November 29, 2017Publication date: May 30, 2019Inventors: Vitobha Munigala, SRIKANTH G. TAMILSELVAM, Manikandan Padmanaban, Jagabondhu Hazra
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Publication number: 20190138042Abstract: One embodiment provides a method, including: receiving photovoltaic output from a solar module, the solar module comprising a plurality of solar panels electronically connected together by a plurality of strings, wherein the photovoltaic output corresponding to any given one of the strings is limited by the lowest performing solar panel in said given one of the strings; determining a reflection profile for the solar module, wherein the reflection profile describes an illumination pattern of light incident onto the solar module; and increasing, based upon the determined reflection profile, the photovoltaic output of the solar module to match a requested photovoltaic output, wherein the increasing comprises electrically reassigning one or more solar panels within the solar module from one string to a different string, such that each string electrically ties together solar panels that produce a photovoltaic output within a predetermined range of each other.Type: ApplicationFiled: November 8, 2017Publication date: May 9, 2019Inventors: Kalyan Kanti Dasgupta, Pankaj S. Dayama, Jagabondhu Hazra, Shivkumar Kalyanaraman, Manikandan Padmanaban
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Publication number: 20180284827Abstract: One embodiment provides a method, including: utilizing at least one processor to execute computer code that performs the steps of: receiving forecasted geomagnetic information caused by solar activity; estimating, using the forecasted geomagnetic information, a geomagnetically induced potential for each of a plurality of transformers operatively coupled to a transmission line, wherein the geomagnetically induced potential is created by geomagnetic disturbances identified using the forecasted geomagnetic information; determining an optimized compensation voltage to be applied to at least one of the plurality of transformers operatively coupled to the transmission line, wherein the optimized compensation voltage comprises a voltage that reduces the potential difference, caused by the induced potential, between neutral lines of the plurality of transformers; and applying the optimized compensation voltage to at least one of the plurality of transformers operatively coupled to the transmission line.Type: ApplicationFiled: March 31, 2017Publication date: October 4, 2018Inventors: Kalyan Kanti Dasgupta, Jagabondhu Hazra, Manikandan Padmanaban
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Publication number: 20180231686Abstract: A method of receiving a substorm activity data log from one or more remote sensors, where substorm activity is due to solar activity. The method also includes receiving a harmonic distortion data stream from one or more remote observatories monitoring disturbances on a power grid, where the distortion is due to geomagnetically induced currents. The method also includes applying a mathematical model to the harmonic distortion data stream to create a derived harmonic distortion data log, and comparing phase-to-phase similarity of the three phases from the derived harmonic distortion data log. The method also includes predicting future adverse events due to geomagnetically-induced currents on the power grid based at least in part on the comparison and the substorm activity data log, and creating a warning based on the prediction.Type: ApplicationFiled: February 15, 2017Publication date: August 16, 2018Inventors: Chumki Basu, Luc Cauchon, Sébastien Guillon, Innocent Kamwa, Manikandan Padmanaban
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Publication number: 20180013377Abstract: Methods, systems, and computer program products for mitigating the effects of shading in photovoltaic cells using flow batteries are provided herein. A computer-implemented method includes connecting at least one fuel stack to one or more photovoltaic cells, wherein each fuel stack comprises (i) one or more ports and (ii) one or more electrochemical cells; determining that one or more portions of the one or more photovoltaic cells are impacted by a shading effect; converting chemical energy stored in an electrolytic solution to electrical energy, by interacting the electrolytic solution with the electrochemical cells of each fuel stack connected to the portions of the impacted photovoltaic cells; automatically opening the ports of each fuel stack connected to the one or more portions of the impacted photovoltaic cells; and supplying the electrical energy to the portions of the impacted photovoltaic cells.Type: ApplicationFiled: July 11, 2016Publication date: January 11, 2018Inventors: Kalyan K. Dasgupta, Jagabondhu Hazra, Manikandan Padmanaban, Ashish Verma
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Publication number: 20170287663Abstract: An apparatus for toggling circuits includes a plurality of parallel channels each having a first end and a second end, a plurality of ports transverse to the plurality of parallel channels, wherein each port has a plurality of valves corresponding to the plurality of parallel channels, wherein each valve selectively opens and closes in response to an input and wherein opening a valve fills a portion of a port with a conducting fluid. The apparatus also includes a controller communicatively coupled to the input of each valve and configured to complete an electric circuit between the first end of the parallel channel and the port corresponding to the valve when the controller opens the valve. A method executed by a computer and a corresponding computer program product are also disclosed herein.Type: ApplicationFiled: March 31, 2016Publication date: October 5, 2017Inventors: Vijay Ekambaram, Manikandan Padmanaban, Sarbajit K. Rakshit
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Publication number: 20170243382Abstract: Methods, systems and computer program products for generating hypergraph representations of dialog are provided herein. A computer-implemented method includes analyzing at least one dialog to identify one or more topics and one or more contributions by one or more persons to the one or more topics, tracking evolution of the identified topics over time in the at least one dialog, generating a hypergraph representation of the at least one dialog utilizing the identified topics, the identified contributions and the tracked evolution of the identified topics, and providing an interactive visualization tool based on the hypergraph representation of the at least one dialog.Type: ApplicationFiled: February 19, 2016Publication date: August 24, 2017Inventors: Prithu Banerjee, Manikandan Padmanaban, Biplav Srivastava, Srikanth G. Tamilselvam
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Publication number: 20170124666Abstract: Methods, systems, and computer program products for determining intermittent renewable energy penetration limits in a grid are provided herein.Type: ApplicationFiled: October 29, 2015Publication date: May 4, 2017Inventors: Jagabondhu Hazra, Manikandan Padmanaban, Ashish Verma, Pg Dr. Mohammad Iskandar Pg Hj Petra, Sathyajith Mathew
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Publication number: 20170038415Abstract: Methods and arrangements for power theft location in an electrical grid. A contemplated method includes: utilizing at least one processor to execute computer code that performs the steps of: receiving an indication of a voltage of a plurality of nodes in the branch of the electrical distribution grid; identifying voltage differences between at least of two of the plurality of the nodes over a predetermined number of days, relative to different time periods within each day, wherein the at least two of the plurality of the nodes are at a known relative position in the branch of the electrical distribution grid; and evaluating the identified voltage differences to determine whether the identified voltage differences satisfy a predetermined criterion indicating no power theft. Other variants and embodiments are broadly contemplated herein.Type: ApplicationFiled: August 6, 2015Publication date: February 9, 2017Inventors: Kalyan Kanti Dasgupta, Jagabondhu Hazra, Manikandan Padmanaban
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Publication number: 20170003329Abstract: Methods and arrangements for computing disruptive current in a transformer. Transformer current is measured, and disruptive current is predicted. Based on the active transformer current and predicted disruptive current, a predicted reactive power and predicted neutral current are determined. At least one corrective action, to be taken with respect to the transformer, is thereupon identified. Other variants and embodiments are broadly contemplated herein.Type: ApplicationFiled: June 30, 2015Publication date: January 5, 2017Inventors: Chumki Basu, Manikandan Padmanaban