baber/WOPTO huggingface dataset:
Patent KR-102219282-B1 (KR)
Title: Rheological cloaking structure
Inventor: SONG YOUNG SEOK
IPC: F15D1/00
Filed: 2020-03-02
Granted: 2021-02-22
Abstract: The present invention relates to a rheological cloaking structure, which comprises a plurality of first unit cells. The plurality of first unit cells are arranged in a first area surrounding a flow exclusion area where flow of fluid is excluded. The first unit cell comprises a first structure, wherein the first structure has higher effective viscosity or effective density as getting closer to the flow exclusion area in a radial direction.
Patent KR-102175217-B1 (KR)
Title: Zinc Panel for finishing work of wall or roof and Method for finishing work using the zinc panel
Inventor: SEO SEUNG UK
IPC: E04D3/367
Filed: 2020-03-10
Granted: 2020-11-05
Abstract: The present invention relates to the formation of three types of zinc panels used for finishing a wall or roof of a building, the formation of a central panel, a lateral panel and an outer panel, and also, to a construction method for effectively finishing zinc panels on a wall or roof of a building by using the panels. According to the present invention, the finishing method is performed with the above-stated three types of zinc panels, wherein the central panel (10) is first constructed in the left-right center of a construction part, and then, panels are constructed on both left and right sides at the same time, thereby considerably improving construction efficiency, and also, the construction part is laterally balanced, thereby constructing an elegant exterior.
Patent KR-102384497-B1 (KR)
Title: 하이드로늄이온 용존수를 이용한 나노필터 제조방법 및 이에 따라 제조된 나노필터
IPC: B01D39/20
Filed: 2020-03-14
Granted: 2022-04-07
Abstract: 본 발명은 (a) 증류수를 정제하여 탈이온수를 제조하는 단계; (b) 물을 전기 분해하여 브라운 가스 스트림을 생성하는 단계; (c) 상기 브라운 가스 스트림에 공기를 혼합하여 혼합기체 스트림을 형성하는 단계; (d) 상기 혼합기체 스트림을 상기 탈이온수에 주입하여 혼합기체를 용존시켜 가스용존수를 제조하는 단계; 및 (e) 상기 가스용존수를 박층크로마토그래피에 주입하고 박층크로마토그래피 내부에 구비된 고정상을 통과시켜 여과한 이후에 분획하여 용존 가스의 농도를 조절하는 단계;를 포함하는 하이드로늄이온 용존수 제조방법을 제공한다. 
따라서 하이드로늄이온이 용존된 기능수를 효과적으로 제조할 수 있다.
Patent KR-102288415-B1 (KR)
Title: Tundish flux and casting method using the same
Inventor: JUNG SUNG HOON
IPC: B22D11/108
Filed: 2020-03-18
Granted: 2021-08-10
Abstract: According to embodiments of the present invention, tundish flux comprises: 40-60 wt% of calcium oxide (Ca0); 25-40 Wt% of aluminum oxide (Al_2O_2); 5-10 wt% of silicon oxide (SiO_2); 2-10 wt% of boron oxide (B_2O); and unavoidable impurities. Therefore, according to the flux according to the embodiments of the present invention, solubility of inclusions or efficiency of removing the inclusions is higher than the conventional flux. Accordingly, as compared to the conventional flux, the present invention can manufacture a slab in which occurrence of defects due to the inclusions is suppressed or prevented and quality is improved.
Patent KR-102135387-B1 (KR)
Title: Logistic management system and method
Inventor: KWAK GEUN KYU
IPC: G06Q10/08
Filed: 2020-04-01
Granted: 2020-07-17
Abstract: The present invention relates to a logistic management system which comprises: a plurality of articles (7) located in a warehouse and having an RFID tag attached thereon; and a transport means (2) in which the articles are loaded and transported. Therefore, the present invention provides the logistic management system and a logistic management method which can be easy to track and locate each article by using the RFID tag for each article and more efficiently and stably perform classification of the articles, thereby enabling customized smart logistic management.
Patent KR-102360514-B1 (KR)
IPC: H01L33/40
Filed: 2020-04-14
Granted: 2022-02-11
Abstract: 본 개시는 하나의 픽셀 광원을 이루는 반도체 발광소자에 있어서, 적어도 하나의 반도체 발광부;로서, 각각의 발광부가 제1 두께를 가지는 제1 투광성 기판, 제1 투광성 기판 위에 형성되며 제1 도전성을 가지는 제1 반도체 영역, 제1 도전성과 다른 제2 도전성을 가지는 제2 반도체 영역, 제1 반도체 영역과 제2 반도체 영역 사이에 개재되어 빛을 발광하는 활성 영역, 제1 반도체 영역과 전기적으로 연결되는 제1 전극부 및 제2 반도체 영역과 전기적으로 연결되는 제2 전극부를 가지는 적어도 하나의 반도체 발광부; 제1 두께보다 두꺼운 제2 두께를 가지는 제2 투광성 기판; 그리고, 적어도 하나의 반도체 발광부의 제1 투광성 기판과 제2 투광성 기판을 결합하는 투광성의 하부 접착층;을 포함하는 반도체 발광소자에 관한 것이다.
Patent KR-102390190-B1 (KR)
Title: 인지 무선 통신을 위한 순환 신경망 기반 스펙트럼 센싱 방법 및 장치
IPC: H04W16/14
Filed: 2020-04-16
Granted: 2022-04-25
Abstract: 본 기술은 인지 무선 통신 시스템을 위한 스펙트럼 센싱 방법 및 장치에 관한 것으로, 본 구체적인 구현예에 의하면, 주사용자 단말에 대한 어떠한 사전 정보도 없을 경우 순환 신경망(Recurrent Neural Network, RNN)을 이용하여 잡음 전력의 추정 과정 필요없이 스펙트럼 센싱을 수행할 수 있는 방법 및 장치이다. 본 기술은 주사용자 단말에게 할당된 채널의 신호 존재 여부를 인지함에 있어, 기존의 문턱값 기반의 스펙트럼 센싱의 불확실한 SNR로 인한 성능 열화를 방지할 수 있고, 주사용자 단말에게 할당된 채널의 신호 존재 여부에 대한 미검출율(Miss Detection Ratio, MDR) 및 검출 오류율(False Detection Ratio, FDR)의 성능을 향상시킬 수 있으며, 이에 시스템 성능을 향상할 수 있다.
Patent KR-102464624-B1 (KR)
IPC: A61K31/7072
Filed: 2020-05-06
Granted: 2022-11-08
Abstract: 본 발명은 광역학 치료용 광민감제 및 항암제가 함유된 고분자 약물 전달체에 대한 것으로, 외부 빛 조사시 고분자 약물 전달체 내부의 광민감제로부터 발생한 활성산소종들에 의한 1차적 빛 자극 국소치료 및 발생된 활성산소종들에 의해 특이적 약물 방출 특성을 지니는 작용기에 의해 항암제를 선택적으로 방출함으로써 2차 화학치료가 가능한 항암치료의 시너지 효과가 있다.
Patent KR-102183501-B1 (KR)
Inventor: CHOI JAE GU
IPC: A61B18/12
Filed: 2020-05-11
Granted: 2020-11-26
Abstract: The present invention relates to an electrical surgical apparatus using high frequency electric energy, which comprises: a waveform generation unit for generating RF signals; a high voltage DC power unit for converting AC powder applied from the outside into high voltage DC powder; an RF amplification unit for amplifying the RF signals based on the high voltage DC power received from the high voltage DC power unit to output a high frequency voltage signal having a square wave shape; and an electrode unit for applying the high frequency voltage signal received from the RF amplification unit to human tissues. The present invention can improve energy transfer efficiency delivered to human tissues of a patient through a handpiece.
Patent KR-102149639-B1 (KR)
Inventor: BAE GEUN WOO
IPC: B41J3/407
Filed: 2020-06-05
Granted: 2020-08-28
Abstract: The present invention relates to a spherical printing jig for a three-axis printer and a spherical printing method using the same. According to the present invention, the loading/unloading time of a printed material is greatly shortened by exchange of a jig body in which the spherical printed material is aligned and prepared. In particular, a simple structural change of applying the jig body to a conventional three-axis printer provides the performance of a four-axis printer in which the a-axis drive of a spherical printing material is controlled, so that the spherical printing area is expanded and the spherical printing quality is improved. The spherical printing jig for the three-axis printer mainly comprises a three-axis printer (100) and a jig body (200).
Patent KR-102253953-B1 (KR)
Title: Method and apparatus for securing location tracking information by using k-anonymity model and data perturbation
Inventor: LEE DONGHYEOK
IPC: G01S19/14
Filed: 2020-06-11
Granted: 2021-05-20
Abstract: According to one embodiment of the present invention, provided are a location tracking information securing technique using the K-anonymity model and data disturbance and a device thereof. Q values, which are an HMAC value for time information, are calculated, based on a preset k value. Based on the Q values, k pieces of disturbed GPS information in which the GPS information is disturbed by using a monotonic increasing polynomial can be calculated to de-identify the location tracking information of a specific subject, so as to generate and store the information.
Patent KR-102447115-B1 (KR)
IPC: H01M10/36
Filed: 2020-06-12
Granted: 2022-09-26
Abstract: 본 발명은 아연-이산화망간 이차전지용 전해액 및 이를 포함하는 아연-이산화망간 이차전지에 관한 것으로서, 보다 상세하게는 충방전 반응에 참여하는 아연염의 용해 가능한 유기용매에 물을 혼합하여 전해액에서 물의 함량을 현저히 줄임으로써, 가스 방출 효과를 억제할 수 있을 뿐만 아니라, 충방전 시 망간이온의 용출도 줄일 수 있어 수명특성을 향상시킬 수 있는 아연-이산화망간 이차전지용 전해액 및 이를 포함하는 아연-이산화망간 전지에 관한 것이다.
Patent KR-102186089-B1 (KR)
Title: System for providing apartment management platform
Inventor: LEE SU YEON
IPC: G06Q30/02
Filed: 2020-06-17
Granted: 2020-12-04
Abstract: Provided is a system for providing an integrated management platform for apartment houses. According to the present invention, the system for providing an integrated management platform for apartment houses comprises: at least one user terminal for connecting to at least one CCTV installed in the apartment house to output a video, printing management fee information of the apartment house and paying the management fee, uploading data to the community or searching and outputting data uploaded to the community; a CCTV management unit which manages the at least one CCTV installed in the apartment house, and streams a video with access permission when an access request from the at least one user terminal is received; a household management unit which maps the at least one user terminal to each household in an apartment house, stores and manages it, and transmits and pays the details of the management fee charged for each household; and a manager management unit which creates a job pool for building managers and maintenance companies to manage the apartment houses, sets and maps the work scope of the selected building managers and maintenance companies, and stores them.
Patent KR-102196454-B1 (KR)
Inventor: KWON HYUG JIN
IPC: G01F23/02
Filed: 2020-07-01
Granted: 2020-12-30
Abstract: An apparatus for measuring waterproof pressure of a sprinkler head using an elastic body is disclosed. An apparatus for measuring waterproof pressure of a sprinkler head using an elastic body according to one aspect of the present invention comprises: a pipe shaped body unit for being installed in a sprinkler pipe; an orifice unit having a diameter corresponding to the sprinkler head and being provided within the body unit to pass flowing water, introduced from the sprinkler pipe, therethrough; a pressure transfer unit transferring pressure due to the flowing water having been passed through the orifice unit; and an elastic body unit having a tip end connected to the pressure transfer unit and having elastic force such that the position of the pressure transfer unit changes according to the pressure due to the flowing water, wherein an observation unit formed of a transparent or a semi-transparent material is provided at one end of the body unit such that the position of the pressure transfer unit can be observed visually from the outside.
Patent KR-102306104-B1 (KR)
Title: Transparent solder paste composition and electronic device comprising thereof
Inventor: LEE SANG MIN
IPC: B23K101/38
Filed: 2020-07-03
Granted: 2021-09-29
Abstract: According to one embodiment of the present invention, provided is an electronic device, comprising: a chip package; a solder provided on one surface of the chip package; a circuit board supporting the chip package; and a solder flux provided between the solder and the circuit board, wherein the solder flux includes: an acid anhydride epoxy compound; an acid anhydride curing agent; a curing catalyst; an organic acid; and a conductive compound. The acid anhydride epoxy compound is a non-aromatic compound that does not contain a benzene ring in the molecule. An object of the present invention is to provide a highly transparent epoxy solder paste that is optically transparent and does not deform even at high temperatures.
Patent KR-102196893-B1 (KR)
Inventor: KO MI SOON
IPC: E04B1/21
Filed: 2020-07-06
Granted: 2020-12-30
Abstract: According to the present invention, an integrated drop panel is provided. The integrated drop panel includes: a plate premanufactured at a factory, and including an opening part penetrated by a rebar protruding to an upper part of a column part, when installed on the column part in a rectangular plate form; front, rear, left and right plates forming a concrete placement space therein by being combined erectly with front, rear, left and right corners of the plate, respectively; and a reinforcement material placed to be fixed to the concrete placement space. The plate, the front, rear, left and right plates and the reinforcement material are integrated. Thus, the integrated drop panel can be installed directly on a column part in a construction site without a process in which all or some of the plate, the front, rear, left and right plates and the reinforcement material are combined. Therefore, since the integrated drop panel is premanufactured at a factory and has an integrated structure, the panel does not require a separate assembly process in a construction site, thereby enabling convenient construction.
Patent KR-102248107-B1 (KR)
Title: Wave type heating wire forming module and wave type heating wire manufacturing equipment and method that can control the amount of heat by part using the same
Inventor: GYE WON JANG
IPC: H05B3/40
Filed: 2020-07-14
Granted: 2021-05-04
Abstract: The present invention relates to a corrugated heating wire manufacturing apparatus capable of controlling the amount of heat for each part. More specifically, the present invention relates to a heating wire for a ceramic heater used in the semiconductor manufacturing field, which is a high-tech industrial field, particularly in a deposition process. In particular, in manufacturing a heating wire made of a metal, for example, a material such as molybdenum (Mo), tungsten, or nickel-chromium, the amount of heat energy emitted for each part can be controlled by adjusting the pitch of a corrugated heating wire. Accordingly, it is possible to adjust the desired amount of emitted heat without applying a separate control device, a control circuit, or a control algorithm. Therefore, reliability and competitiveness can be improved in the semiconductor deposition process field, particularly the heater field used in a deposition process, the molybdenum heater field, and the semiconductor product field of producing products using the same, as well as similar or related fields.
Patent KR-102171740-B1 (KR)
Inventor: JEON KOANG TAK
IPC: G03B13/36
Filed: 2020-07-28
Granted: 2020-10-29
Abstract: The present invention relates to a zoom camera for photographing a subject by adjusting zoom-in and zoom-out magnifications and, more specifically, to an image monitoring apparatus including AF zoom lens module enabling optical axis compensation, capable of providing high-quality image data by compensating for an optical axis error in accordance with the magnification adjustment of a zoom lens group. According to the present invention, the image monitoring apparatus including AF zoom lens module enabling optical axis compensation includes: a lens module including a zoom lens group, an image sensor converting an optical signal of the zoom lens group into an electric signal, and an image processing part processing the electric signal of the image sensor as an image; and a housing embedding the lens module. The image processing part includes: a preprocessing part converting the electric signal of the image sensor into image data; and an optical axis compensation part extracting an optical axis deviation in accordance with a zoom magnification of the zoom lens group from a compensation conversion table, and adjusting a center position of the image data based on the extracted optical axis deviation.
Patent KR-102367284-B1 (KR)
Title: 신발 소독기
IPC: A61L2/10
Filed: 2020-07-30
Granted: 2022-02-23
Abstract: 본 발명은 신발 소독기에 관한 것으로, 육면체 형상의 본체, 상기 본체의 외측면에 장착되는 복수 개의 자외선LED, 상기 본체에 내장되어 상기 자외선LED에 전력을 공급하는 배터리, 상기 본체에 형성되며 상기 배터리와 연결된 입력단자, 상기 본체가 내장되도록 내부에 공간부가 형성된 커버, 상기 커버의 가장자리에 착탈가능하게 마련되는 날개부재를 포함하는 것으로, 본 발명은 간단한 구조로 구성되어 휴대성 및 사용성이 좋으며, 장소에 관계없이 사용자가 필요로 할 때 즉각적으로 신발 내부를 건조, 탈취, 살균할 수 있으므로 신발의 관리가 용이한 현저한 효과가 있다.
Patent KR-102423102-B1 (KR)
Title: 이동식산불진화시설 겸용 대피소
IPC: A62C35/02
Filed: 2020-08-04
Granted: 2022-07-21
Abstract: 본 발명은 이동식산불진화시설 겸용 대피소 에 관한 것으로서 보다 상세 하게는 제작된 상태에서 암롤 트럭 및 소방헬기등의 운반매체에 의해 이동이 가능하고 운반매체에 의해 이동시 본체부(007)내 저장된 소방용수의 출렁거림등 소방용수의 균형을 유지하기 위한 수면유지균형판넬(007-1) 및 수면유지균형판넬 지지대(007-2)가 설치되고,  내부에 대피소인 공간부(007)를 갖도록 형성되는 본체부(007)와 본체부(007)일측에 설치되어 공간부(002)로의 출입을 가능하게 하는 출입부(004)와 본체부(007)의 내측면과 공간부(002)외측면 사이에 외부로 부터의 열을 차단하는 소방용수를 저장하는 열차단수막공간(0012),공간부(002)의 외측면과 열차단수막공간(0012)에 소방용수를 일정수준 저장하여 본체부(007)내의 공간부(002)가 소방용수에 의해 수중에 잠기게 하기위한   차수막(008), 공간부(002)내의 고압펌프에 소방용수를 공급하기위한 고압펌프급수관(0012-3),산불진화 상황종료시 저장된 열차단수막공간(0012)의 소방용수 를 본체부(007)내의 소방용수저수조(007-4) 로 배출하기 위한 수막공간배수밸브(002-2),본체부(007)의 일측에 설치되어 가압펌프를 사용하여 산불진화를 하기 007-1위한 제1,제2 가압펌프    급수밸브(005,006)가 설치되어 있는것을  특징으로 한다.
Patent KR-102433639-B1 (KR)
Title: 곤드레 파스타 및 이의 제조 방법
IPC: A23L7/109
Filed: 2020-08-04
Granted: 2022-08-18
Abstract: 본 발명은 곤드레 파스타 및 이의 제조 방법에 관한 것으로, 보다 구체적으로는 전통적인 식감을 그대로 살린 부드러운 크림 소스에, 우리나라의 독특한 재료인 나물 중에서도 특히 비타민과 식이섬유가 매우 풍부한 곤드레를 주재료로 하여 파스타를 제조함으로써 파스타 면과 잘 어울리면서 영양적으로 매우 우수한 파스타가 제공될 수 있다.
Patent KR-102398354-B1 (KR)
Title: 전자 장치 및 전자 장치의 동작 방법
IPC: G11C13/00
Filed: 2020-08-11
Granted: 2022-05-17
Abstract: 본 발명의 실시 예에 따른 전자 장치의 동작 방법은 입력 데이터를 수신하는 단계, 상기 입력 데이터를 멤리스터 어레이 회로에 저장하기 위한 복수의 프로그램 전압 패턴들 중에서, 수신된 상기 입력 데이터에 상응하는 프로그램 전압 패턴을 선택하는 단계 및 선택된 상기 프로그램 전압 패턴에 따라, 상기 입력 데이터를 상기 멤리스터 어레이 회로에 저장하는 단계를 포함한다. 상기 복수의 프로그램 전압 패턴들 각각은, 시간에 따라 크기가 점차 증가하는 복수의 전압 펄스들을 포함한다.
Patent KR-102193760-B1 (KR)
Inventor: PARK MYUNG SU
IPC: B66C15/00
Filed: 2020-08-13
Granted: 2020-12-21
Abstract: The present invention relates to a tong-key. The tong-key according to the present invention comprises: a base having a through hole therein; an upper cam formed on one side of the base along the through hole, and including an involute curve; a lower cam formed on the other side of the base along the through hole, and including an involute curve; a shaft inserted into the through hole of the base and provided to be movable in one direction; an upper pin provided on one side of the shaft and inducing rotation of the shaft due to contact with the upper cam; and a lower pin provided on one side of the shaft and spaced apart from the upper pin, and inducing rotation of the shaft due to contact with the lower cam. According to the present invention, the upper cam and the lower cam are integrally formed, such that shaking of the shaft is reduced, and the shaft is configured to be opened, thereby facilitating maintenance.
Patent KR-102386827-B1 (KR)
Title: 손잡이형 소독액 분사장치
IPC: A61L2/00
Filed: 2020-08-21
Granted: 2022-04-15
Abstract: 본 발명은, 중공이 형성된 관 형상으로 길이방향으로 길게 연장 형성되고, 외주면을 따라 방사향으로 분사홀(111)이 관통 형성된 분사 본체(110), 분사홀(111)과 연통되어 소독액을 미스트 형태로 토출하는 소독액 분사부(120), 및 분사 본체(110)의 외측면에 결합되어 사용자의 손과 분사 본체(110)의 접촉을 감지하면 소독액 분사부(120)를 구동하여 소독액을 사용자의 손가락과 손바닥을 향해 분사하도록 하는 감지부(130)를 포함하여, 사용자의 손 접촉을 감지하여 자동으로 소독액을 분사하도록 하는, 손잡이형 소독액 분사장치를 개시한다.
Patent KR-102183627-B1 (KR)
Inventor: LEE SEOK NAM
IPC: F03B13/20
Filed: 2020-08-24
Granted: 2020-11-26
Abstract: Disclosed is a wave power generator. According to one embodiment of the present invention, the wave power generator comprises: a wave power absorption unit which includes a pair of floating support units floating on the seawater surface, bound with each other while being separated by regular intervals using a link structure so that positions thereof are changeable upward and downward in accordance with the height of waves; energy shape conversion units respectively mounted on each of the floating support units, include a pendulum movement unit which makes a pendulum movement in accordance with changes in the angle of the link structure in accordance with the differences in height between the pair of floating support units, and a linear reciprocating cylinder unit which converts the reciprocating movement of the pendulum movement unit into a linear reciprocating movement; and a power generation unit which is mounted near the linear reciprocating cylinder unit to generate a rotary movement through changes in the hydraulic pressure generated by the linear reciprocating movement of the linear reciprocating cylinder unit and to convert the rotary kinetic energy generated into electric energy. According to the present invention, the wave power generator is able to effectively absorb the reciprocating upward/downward kinetic energy of the wave having diverse heights, cycles, and directions by using a stable structure, to convert the reciprocating upward/downward movement kinetic energy absorbed into a rotary movement by using the linear reciprocating cylinder unit and a hydraulic motor, thereby remarkably improving power generation efficiency.
Patent KR-102265349-B1 (KR)
IPC: H04B7/06
Filed: 2020-08-25
Granted: 2021-06-15
Abstract: 억세스 포인트(AP)에서의 멀티 유저-멀티 입력 멀티 아웃(MU-MIMO) 통신을 위한 프레임 송수신 방법이 개시된다.  일 실시 예에 의한 프레임 송수신 방법은, 복수 개의 스테이션으로, 데이터 프레임 송신을 요청하는 업 링크 멀티 유저 요청(UL MU Request) 프레임을 송신하는 단계 및 상기 복수 개의 스테이션으로부터 동일한 기간 동안 동일한 수신 세기로 상기 데이터 프레임을 수신하는 단계를 포함하고, 상기 업 링크 멀티 유저 요청 프레임은 상기 데이터 프레임의 송신 기간 및 상기 데이터 프레임의 상기 억세스 포인트에서의 수신 세기 정보 중 적어도 하나를 포함할 수 있다.
Patent KR-102374918-B1 (KR)
Title: 최대 전력점 추종 제어 알고리즘을 구비한 전력 시스템
IPC: G05F1/67
Filed: 2020-08-26
Granted: 2022-03-16
Abstract: 본 발명은 메인 제어부가 메인 컨버터부의 MPPT 제어를 수행하되, 서브 제어부는 서브 컨버터부의 MPPT 제어를 선택적으로 수행함으로써, 전원부에서 생성된 전력이 부하로 전달되는 효율을 향상시킬 수 있도록 하는 최대 전력점 추종 제어 알고리즘을 구비한 전력 시스템에 관한 것이다. 본 발명에 의하면, 서브 전원부에서 생성되는 서브 전력이 부하로 전달되는 전력 전달 효율을 향상시킬 수 있게 된다.
Patent KR-102560912-B1 (KR)
IPC: A61K35/28
Filed: 2020-08-26
Granted: 2023-07-28
Abstract: 세포 유래 물질로서 안전성이 뛰어나고, 기존 사용되고 있는 항암제의 부작용을 최소화할 수 있는 유효성분으로서 엑소좀을 포함하는, 암 치료, 예방 또는 암 전이 억제를 달성하기 위한 약학적 조성물에 관한 것이다.
Patent KR-102333788-B1 (KR)
Title: ADRC(Active Disturbance Rejection Control)-based sensorless control system and method for LCL-filtered grid-connected inverter
Inventor: THUY VI TRAN
IPC: H02M1/00
Filed: 2020-08-31
Granted: 2021-12-01
Abstract: The present invention relates to an ADRC based sensorless control system of an LCL-filter type grid-connected inverter and a method thereof. According to the present invention, the ADRC based sensorless control system of the LCL-filter type grid-connected inverter comprises: a resonant extension type state observer for estimating a state of an integral-chain-based inverter model and an overall disturbance and uncertainty state affecting an inverter by receiving a grid voltage and a grid current; a fundamental frequency component filter for receiving a disturbance state estimated by the resonant extension type state observer and filtering a high frequency wave distorted from the estimated disturbance state; a grid frequency and phase angle estimator for receiving the disturbance state estimated by the resonant extension type state observer through a fundamental frequency component filter and extracting a grid voltage phase angle and an angular frequency from the estimated disturbance state; and a resonant ADRC based current controller, as a grid voltage sensorless current controller, for receiving the grid voltage phase angle and the angular frequency estimated by the grid frequency and phase angle estimator and the disturbance state estimated by the resonant extension type state observer and removing disturbance from the estimated disturbance state and tracking a voltage reference value based on this to reflect it to the grid-connected inverter.
Patent KR-102256914-B1 (KR)
Inventor: LEE EUN GI
IPC: F16B7/02
Filed: 2020-09-01
Granted: 2021-05-27
Abstract: The present invention relates to a fixing key unit holder of a rebar coupler used for connecting rebars to each other when constructing a building. More specifically, according to the present invention, a fixing key unit fastening one part on an end unit of the rebar with the housing including the rebar coupler is supported by the fixing key unit holder made of elastic materials. In the fixing key unit holder, a fixing key unit engagement unit, which supports the fixing key unit, is integrated with an introduction limitation unit, which limits the introduction of the fixing key unit into the center in an inner space of the housing. Accordingly, the fixing key unit holder is able to perform an excellent manufacture and assembly of the rebar coupler, and to improve the rebar fastening force.