Patents by Inventor Yoon-Sung Cho
Yoon-Sung Cho 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: 11955625Abstract: Provided are a negative electrode active material including a three-dimensional composite. The three-dimensional composite includes secondary particles containing a silicon carbide-based (SiCx, 0<x?1) nanosheet having a bent portion and amorphous carbon. Also provided are a method of producing the same, and a negative electrode and a lithium secondary battery including the negative electrode active material.Type: GrantFiled: August 20, 2021Date of Patent: April 9, 2024Assignees: SK On Co., Ltd., UNIST (Ulsan National Institute of Science and Technology)Inventors: Eunjun Park, Joon-Sup Kim, Jaekyung Sung, Yoon Kwang Lee, Tae Yong Lee, Jae Phil Cho
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Patent number: 10444736Abstract: A communication system is provided. The communication system includes a communication device receiving a state signal from at least one remote terminal unit (RTU), generating signal quality data for the state signal, and transmitting, to a control device, the generated signal quality data and the received state signal. The control device generates state estimation data for each of the at least one RTU on a basis of the state signal received from the communication device, corrects the signal quality data transmitted from the communication device according to at least one preset condition, and changes the generated state estimation data on a basis of the corrected signal quality data and the received state signal.Type: GrantFiled: December 15, 2015Date of Patent: October 15, 2019Assignee: LSIS CO., LTD.Inventors: Young In Kim, Ae Kyoung Bae, Hong Joo Kim, Yoon Sung Cho
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Patent number: 10312682Abstract: A dynamic stability assessment device is provided. The dynamic stability assessment device includes an energy management system (EMS); and a dynamic stability assessment system for dynamic stability assessment on a power system of the energy management system. The EMS includes a plurality of facility names with respect to a single facility, and processes to power system data based on any one of the plurality of facility names according to a state of the power system.Type: GrantFiled: April 12, 2016Date of Patent: June 4, 2019Assignee: LSIS CO., LTD.Inventors: Hong Joo Kim, Ae Kyoung Bae, Young In Kim, Yoon Sung Cho
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Patent number: 10203675Abstract: A communication system includes a first remote terminal unit (RTU) outputting first RTU data, a second RTU outputting second RTU data, and a remote control center applying a first RTU weight, which is a weight for the first RTU, to the output first RTU data and a second RTU weight, which is a weight for the second RTU, to the output second RTU data, and generating state estimation information for the first and second RTUs on the basis of the first and second RTU data to which each of the first and second RTU weights are applied.Type: GrantFiled: December 3, 2015Date of Patent: February 12, 2019Assignee: LSIS CO., LTD.Inventors: Young In Kim, Ae Kyoung Bae, Hong Joo Kim, Yoon Sung Cho
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Patent number: 9979673Abstract: A communication system is provided. The communication system includes a plurality of remote terminal units (RTUs) outputting a state signal. The communication system includes a communication device receiving the output state signal from each of the plurality of RTUs and generating signal quality information, which is quality information on the received state signal. The communication system includes a control device obtaining the signal quality information and the state signal, determining at least one RTU among the plurality of RTUs as a load according to a preset condition in response to the obtained signal quality information, and generating system analysis information on the plurality of RTUs, which includes the at least one RTU determined as the load, on the basis of the state signal.Type: GrantFiled: December 15, 2015Date of Patent: May 22, 2018Assignee: LSIS CO., LTD.Inventors: Ae Kyoung Bae, Young In Kim, Hong Joo Kim, Yoon Sung Cho
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Publication number: 20160308780Abstract: A communication system is provided. The communication system includes a plurality of remote terminal units (RTUs) outputting a state signal. The communication system includes a communication device receiving the output state signal from each of the plurality of RTUs and generating signal quality information, which is quality information on the received state signal. The communication system includes a control device obtaining the signal quality information and the state signal, determining at least one RTU among the plurality of RTUs as a load according to a preset condition in response to the obtained signal quality information, and generating system analysis information on the plurality of RTUs, which includes the at least one RTU determined as the load, on the basis of the state signal.Type: ApplicationFiled: December 15, 2015Publication date: October 20, 2016Applicant: LSIS CO., LTD.Inventors: AE KYOUNG BAE, YOUNG IN KIM, HONG JOO KIM, YOON SUNG CHO
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Publication number: 20160306342Abstract: A communication system is provided. The communication system includes a communication device receiving a state signal from at least one remote terminal unit (RTU), generating signal quality data for the state signal, and transmitting, to a control device, the generated signal quality data and the received state signal. The control device generates state estimation data for each of the at least one RTU on a basis of the state signal received from the communication device, corrects the signal quality data transmitted from the communication device according to at least one preset condition, and changes the generated state estimation data on a basis of the corrected signal quality data and the received state signal.Type: ApplicationFiled: December 15, 2015Publication date: October 20, 2016Applicant: LSIS CO., LTD.Inventors: YOUNG IN KIM, AE KYOUNG BAE, HONG JOO KIM, YOON SUNG CHO
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Publication number: 20160306331Abstract: A communication system includes a first remote terminal unit (RTU) outputting first RTU data, a second RTU outputting second RTU data, and a remote control center applying a first RTU weight, which is a weight for the first RTU, to the output first RTU data and a second RTU weight, which is a weight for the second RTU, to the output second RTU data, and generating state estimation information for the first and second RTUs on the basis of the first and second RTU data to which each of the first and second RTU weights are applied.Type: ApplicationFiled: December 3, 2015Publication date: October 20, 2016Applicant: LSIS CO., LTD.Inventors: YOUNG IN KIM, AE KYOUNG BAE, HONG JOO KIM, YOON SUNG CHO
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Publication number: 20160301206Abstract: A dynamic stability assessment device is provided. The dynamic stability assessment device includes an energy management system (EMS); and a dynamic stability assessment system for dynamic stability assessment on a power system of the energy management system. The EMS includes a plurality of facility names with respect to a single facility, and processes to power system data based on any one of the plurality of facility names according to a state of the power system.Type: ApplicationFiled: April 12, 2016Publication date: October 13, 2016Applicant: LSIS CO., LTD.Inventors: Hong Joo KIM, Ae Kyoung BAE, Young In KIM, Yoon Sung CHO
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Patent number: 9104999Abstract: An outage schedule management apparatus and a method are provided, wherein a topology change is executed in response to an outage schedule set up by a user input, and a validity determination is executed to system operation standard to approve an outage.Type: GrantFiled: November 6, 2012Date of Patent: August 11, 2015Assignee: LSIS CO., Ltd.Inventors: Young In Kim, Yoon Sung Cho
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Patent number: 9075591Abstract: An integrated interface system for a power-system monitoring and control system is provided. The integrated interface system includes an input and output (I/O) interface unit 220 performing data transmission to and reception from the external data source system; and a data exchange unit exchanging data by using the naming of a fixed electrical bus number for data exchange between a power-system monitoring and control system and the external data source system having a DB different from the power-system monitoring and control system.Type: GrantFiled: May 8, 2014Date of Patent: July 7, 2015Assignee: LSIS Co., Ltd.Inventors: Yoon Sung Cho, Yun Hyuk Choi, Young In Kim
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Publication number: 20150169730Abstract: Disclosed are an apparatus and a method for correcting data through system analysis for each period in the field of an energy management system (EMS). An apparatus for correcting acquired data includes a topology processing (TP) unit and at least one system analyzing unit. The TP unit acquires data including circuit breaker information from a supervisory control and data acquisition (SCADA) system. The at least one system analyzing unit stores data for performing state estimation with respect to the data output from the TP unit, and processes the stored data according to a predetermined period. In the apparatus, the system analyzing unit is classified into at least one data processing group according to the data processing period.Type: ApplicationFiled: December 11, 2014Publication date: June 18, 2015Applicant: LSIS CO., LTD.Inventors: Young In KIM, Yun Hyuk CHOI, Yoon Sung CHO
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Publication number: 20140337655Abstract: An integrated interface system for a power-system monitoring and control system is provided. The integrated interface system includes an input and output (I/O) interface unit 220 performing data transmission to and reception from the external data source system; and a data exchange unit exchanging data by using the naming of a fixed electrical bus number for data exchange between a power-system monitoring and control system and the external data source system having a DB different from the power-system monitoring and control system.Type: ApplicationFiled: May 8, 2014Publication date: November 13, 2014Applicant: LSIS CO., LTD.Inventors: Yoon Sung CHO, Yun Hyuk CHOI, Young In KIM
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Patent number: 8766809Abstract: Disclosed are an apparatus for correcting an error of acquired data and a method thereof. The method includes determining whether states of at least one circuit breaker and at least one disconnecting switch included in at least one station are consistent with each other based on data received from at least one remote control apparatus including the at least one station; assigning a weight to a corresponding circuit breaker and a corresponding disconnecting switch and the station including the corresponding circuit breaker and the corresponding disconnecting switch when the determination result represents that the states of the circuit breaker and the disconnecting switch are inconsistent with each other; creating alarm information notifying a malfunction of the corresponding circuit breaker and the corresponding disconnecting switch when an accumulated weight value is equal to or greater than a preset reference weight value; and outputting an alarm corresponding to the alarm information.Type: GrantFiled: February 20, 2013Date of Patent: July 1, 2014Assignee: LSIS Co., Ltd.Inventors: Young In Kim, Yoon Sung Cho
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Publication number: 20130282317Abstract: Disclosed is a system for acquiring and controlling information of power energy production, power transmission, and power consumption by storing information of circuit breakers, switches, power generators, power transmission lines, and transformers in the database, and a method of controlling the same. The method includes acquiring data from a remote control system, comparing the acquired data with data that are previously stored in a database, calculating an estimation value of data that are not acquired according to a comparison result, and performing fault current analysis or contingency analysis according to the calculated estimation value to calculate a rated capacity of a circuit breaker.Type: ApplicationFiled: April 3, 2013Publication date: October 24, 2013Applicant: Lsis Co., LtdInventors: Yoon Sung CHO, Young In KIM
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Patent number: 8169106Abstract: The present disclosure relates to an energy management system (EMS) and a method using the same, wherein the EMS comprises, a communication module receiving a channel information of a high voltage direct current (HVDC) system via a network; a circuit realization unit obtaining a connection information among constituent elements symbolizing the constituent elements among each node in electrical symbols by sequentially following pre-set nodes of the HVDC system, and forming the HVDC system by connecting the symbolized constituent elements using electrical lines by using the channel information of HVDC system received by the communication module; a system analyzing unit analyzing an operation mode of the HVDC system through the connection information among the constituent elements of the HVDC system obtained by the circuit realization unit; and a controller managing and controlling the HVDC system by giving an energy management command in response to the operation mode analyzed by the system analyzing unit.Type: GrantFiled: January 30, 2009Date of Patent: May 1, 2012Assignee: LS Industrial Systems Co., Ltd.Inventors: Uk Hwa Lee, Sang Yuen Yuen, Yoon-Sung Cho
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Publication number: 20090196077Abstract: The present disclosure relates to an energy management system (EMS) and a method using the same, wherein the EMS comprises, a communication module receiving a channel information of a high voltage direct current (HVDC) system via a network; a circuit realization unit obtaining a connection information among constituent elements symbolizing the constituent elements among each node in electrical symbols by sequentially following pre-set nodes of the HVDC system, and forming the HVDC system by connecting the symbolized constituent elements using electrical lines by using the channel information of HVDC system received by the communication module; a system analyzing unit analyzing an operation mode of the HVDC system through the connection information among the constituent elements of the HVDC system obtained by the circuit realization unit; and a controller managing and controlling the HVDC system by giving an energy management command in response to the operation mode analyzed by the system analyzing unit.Type: ApplicationFiled: January 30, 2009Publication date: August 6, 2009Inventors: Uk Hwa Lee, Sang Yuen Yuen, Yoon-Sung Cho