40 patents
Utility
Raw material composition for preparing oxygen carrier particles, oxygen carrier particles prepared by using same, and method for preparing oxygen carrier particles
5 Dec 23
A raw material composition for producing oxygen carriers includes a first component which is one or more of nickel oxide and nickel hydroxide and a second component which is one or more of boehmite, cerium oxide, cerium hydroxide, magnesium oxide, magnesium hydroxide, and titanium oxide, wherein, when the first component is nickel oxide, the second component includes cerium hydroxide.
Ui Sik Kim, Jeom In Baek, Joong Beom Lee, Tae Hyoung Eom, Hyun Geun Jo
Filed: 22 Sep 17
Utility
Converter-separated electric vehicle charging system, and electric vehicle charging apparatus installed on utility pole
3 Oct 23
A system for charging an electric vehicle according to an exemplary embodiment of the present disclosure may include a transformer connected to a distribution line, a converter converting power converted by the transformer into charging power and a charging apparatus separated from the converter and installed on a utility pole to receive the charging power from the converter and supply the charging power to the electric vehicle.
Bong-Kun Jin, Seong-Man Kim, Do-Jin You
Filed: 12 Jun 17
Utility
Apparatus and method for generating data quality information of electric power equipment
23 May 23
The present invention relates to an apparatus for generating data quality information of electric power equipment, the apparatus including a data collector configured to collect a piece of measured data of electric power equipment, a storage configured to store a previous value and a set value for the piece of measured data, and a quality value generator configured to generate a quality value for the piece of measured data by applying the piece of measured data, the previous value, and the set value to a predetermined logic circuit.
Chung Hyo Kim, Jun Churl Yoon, Young Sung Lee, Yong Hun Lim, Seong Ho Ju
Filed: 22 Jun 17
Utility
Carbon dioxide separator
1 Nov 22
A carbon dioxide separator includes an absorption tower for producing a carbon dioxide-rich absorbent and a carbon dioxide-depleted flue gas by reaction of a carbon dioxide-containing flue gas and an absorbent contained therein; a regeneration tower for removing the carbon dioxide-rich absorbent transferred from the absorption tower in the presence of the flowing gas to separate the same into a carbon dioxide-rich treatment gas and a carbon dioxide-lean absorbent; and a separation membrane module for selectively membrane-separating and concentrating the carbon dioxide, wherein the carbon dioxide-containing flue gas is transferred to the absorption tower as a carbon dioxide-lean flue gas obtained via the separation membrane module, and the flowing gas is transferred to the regeneration tower as the carbon dioxide-rich flue gas obtained via the separation membrane module from the carbon dioxide-containing flue gas.
Tae Hyoung Eom, Joong Beom Lee, Ui Sik Kim, Hyun Geun Jo, Joong Won Lee
Filed: 30 Nov 16
Utility
Data concentration unit and operating method thereof
1 Nov 22
The present invention relates to a data concentration unit and an operating method thereof.
Kang-Se Lee, Hyeong-Ju Lee, Jae-Wan Kim
Filed: 11 Aug 17
Utility
Bent rotor straightening method using low frequency induction heating and bent rotor straightening apparatus using same
11 Oct 22
A bent rotor straightening method using low-frequency induction heating and a bent rotor straightening apparatus using the method are proposed.
Kwang-Ha Park, Doo-Young Kim, Hyun-Ku Park, Jung-Hwan Kim, Yong-Hee Jang, Jun-Su Park
Filed: 20 Mar 19
Utility
Self-extinguishing power cable with microcapsules and method for manufacturing same
6 Sep 22
Disclosed is a self-extinguishing power cable with microcapsules and a method for manufacturing the same.
Dong-Woo Kim, Sung-Min Kim, O-Deuk Kwon, Young-Sung Kim, Il-Joo Mun
Filed: 2 Aug 17
Utility
Electric power software development platform
23 Aug 22
A power software development platform may include a platform adapter configured to provide a connection environment for a plurality of communication devices each installed in a plurality of power facilities, a platform gateway configured to collect data through a plurality of power systems to which the plurality of communication devices are connected, a platform interface which provide a distribution service for the data collected by the platform gateway, a platform data hub configured to receive the data through the distribution service, verify the received data, and provide an access environment for the verified data to an application developer, an analysis abstraction service configured to convert a plurality of physical analysis engines into abstracted services and provide the abstracted services to the application developer, and an application gateway configured to receive an application from the application developer and provide the application to an application user.
Jung-Il Lee, Jun-Sung Kim, Hee-Jeong Park, Ji-Kang Sin, Seung-Hwan Choi
Filed: 15 Jan 18
Utility
Over-voltage prevention apparatus and method of distribution line connected with distributed generator
2 Aug 22
The present disclosure relates to an over-voltage prevention apparatus and method of a distribution line connected with a distributed generator, which sets a range of a dispatched voltage based on a current voltage of a Pole Mounted Automatic Voltage Regulator (PVR) and a voltage at a connection point of a distributed generator to control so that the dispatched voltage is output within the corresponding range.
Won Wook Jung, Koong Won Nam, Jong Nam Weon, Chang Hoon Shin, Seong Soo Cho
Filed: 30 Jan 20
Utility
Data transmission system and method in physical network separation environment
12 Jul 22
A data transmission system and method in a physical network separation environment is provided, which includes: a drive device controlling connection switching for one storage medium drive writing or reading a data file on or from a predetermined storage medium; a source-side server executing writing the data file on the storage medium loaded in the storage medium drive, after switching to a connection to the storage medium drive; a clean PC conducting hash value verification and a test for infection of malicious code with respect to the data file that has been written on the storage medium, after switching to a connection to the storage medium drive; and a destination-side server executing reading the tested data file from the storage medium, after switching to a connection to the storage medium drive.
Jong-Kwan Kim, Seung-Youn Lee, Seung-Kwon Yang, Myong-Soo Kim, Dong-Wook Kim
Filed: 4 Jul 17
Utility
Apparatus and method for diagnosing battery
21 Jun 22
The present invention relates to an apparatus and a method for diagnosing a battery, and comprises: a power conversion unit for discharging and charging a battery; and a control unit for controlling the power conversion unit to discharge and charge the battery, and diagnosing power fade of the battery by calculating a maximum discharge output and a maximum charge output of the battery on the basis of a voltage and a current of the battery measured during discharging and charging of the battery.
Jin Hyeok Choi, Ji Hun Lim, Sung Eun Lee
Filed: 24 Jul 18
Utility
Metering data management system and computer readable recording medium
24 May 22
The present invention relates to a metering data management system including a metering data transmission module configured to collect a piece of metering data and generate a message containing the piece of metering data and topic information corresponding to the piece of metering data, a plurality of buffer servers, each of which has a plurality of buffers to which different topics are assigned, configured to store the message in a buffer corresponding to the topic information, a metering data processing module configured to extract the piece of metering data from some of the plurality of buffer servers and process the extracted piece of metering data, and a broker server configured to determine a buffer server, which is an extraction target of the metering data processing module, among the plurality of buffer servers on the basis of state information of the plurality of buffer servers.
Yong Jae Joo, Jin Ho Shin, Jae Koo Noh
Filed: 21 Nov 16
Utility
Transformer hydrogen gas monitoring system, device, and method
8 Feb 22
A transformer hydrogen gas monitoring system according to an embodiment of the present invention may comprise: a sensor module, which is disposed to allow at least a part thereof to meet hydrogen gas in a transformer and measures a resistance value of a member having a variable resistance value according to a hydrogen concentration in the transformer; and a multi-task module for receiving a sensing result of the sensor module, generating hydrogen concentration information corresponding to resistance value information included in the sensing result, and remotely transmitting information corresponding to the generated hydrogen concentration information.
Seok-Kon Kim, Jeong-Yeol Han, You-Jin Lee, Tea-Kyun Kim, Yong-Ho An, Byung-Tae Jang, Jong-Kee Choi, Nam-Ho Lee, Nam-Dae Kim
Filed: 18 Aug 17
Utility
Device and method for detecting failure location of underground cable
18 Jan 22
An apparatus and a method for detecting a fault location of an underground cable are proposed.
Chae-Kyun Jung, Yong-June Shin, Gu-Young Kwon, Tae-Kyun Kim, Jae-Sang Hwang
Filed: 24 Aug 18
Utility
Power transformer asset management device and method therefor
23 Nov 21
The present invention relates to a power transformer asset management device and a method thereof, the device according to the present invention including: a full cycle database managing full cycle data of a power transformer; a physical performance evaluation unit performing physical performance evaluation that calculates a health index by analyzing and weighting life information, a failure ratio, operation history, and status information of a preventive diagnosis system from the full cycle data; a risk evaluation unit performing risk evaluation by generating a risk matrix using the physical performance evaluation result; an economic evaluation unit performing economic evaluation by evaluating costs over a full cycle of the power transformer; and an asset management unit establishing an investment plan for replacing the power transformer according to a maintenance priority of the power transformer determined using the physical performance evaluation result, the risk evaluation result, and the economic evaluation result.
Dong-Jin Kweon, Byoung-Soo Joo, Yong-Beum Yoon
Filed: 4 Aug 17
Utility
Solid raw material for carbon dioxide absorbent, carbon dioxide absorbent composition comprising same, and carbon dioxide absorbent prepared using same
9 Nov 21
The present invention relates to a carbon dioxide absorbent used for absorbing carbon dioxide, a carbon dioxide absorbent composition used for producing the carbon dioxide absorbent, and a solid raw material for a carbon dioxide absorbent included in the carbon dioxide absorbent.
Joong Beom Lee, Tae Hyoung Eom, Hyun Geun Jo, Jeom In Baek, Ui Sik Kim
Filed: 18 Nov 16
Utility
Combined power generation apparatus
19 Oct 21
A composite power generating device of the present invention includes an engine (110), a first flow line (121), a turbocharger (130), a second flow line (122), a third flow line (123), a compressor (211), a first medium line (221), a medium turbine (212), a second medium line (222), a working medium cooler (213), a recuperator (215), a power generating unit (214), a cross-line (233), a first heat exchanger (251), a second heat exchanger (252), and a third heat exchanger (253).
Gwang Nyeon Ryu, Jin Ki Ham, Beom Joo Kim, Cheol Hee Lee
Filed: 22 Jan 18
Utility
AMI system for performing phase detection and synchronization in AMI communication network using relay communication method, and method thereof
5 Oct 21
The present invention relates to a system for performing phase detection and synchronization in an AMI communication network using a relay communication, and a method thereof.
Byung-Seok Park, No-Gil Myoung, Byung-Kab Jo, Jong-Mock Baek, Han-Jin Cho, Jung-Ho Lee, Jun-Su Shim
Filed: 13 Jul 17
Utility
Protective relay test equipment operation device and method
24 Aug 21
A protective relay test equipment operation device according to an embodiment of the present invention may comprise: a switch unit for, upon reception of a trip signal or a close signal from a protective relay, changing an electrical connection state between a first port configured to be electrically connected to test equipment that generates a test signal and a second port configured to be electrically connected to the protective relay; a measurement unit for measuring a voltage and a current between the first port and the second port during a test period in which an operation time point of the switch unit is a start time point or an end time point; and a calculation unit for calculating a plurality of time point-specific impedance values within the test period according to a measurement result of the measurement unit.
Young-Hun Kwon, Ki-Seob YuN, Guk-Tae Kim
Filed: 18 Aug 17
Utility
Pressure generation apparatus and method for superconducting power equipment
10 Aug 21
The present invention relates to pressure generation apparatus and method for superconducting power equipment and, more particularly, to pressure generation apparatus and method for superconducting power equipment, wherein a pressure system separately arranged to apply pressure to liquid nitrogen in the superconducting power equipment is disposed inside a pressure vessel.
Young-Hee Han, Byung-Jun Park, Seong-Eun Yang
Filed: 23 Nov 16