公开(公告)号：US20190043644A1

公开(公告)日：2019-02-07

申请号：US15757707

申请日：2016-09-06

Applicant: Korea Electrotechnology Research Institute

Inventor： Rock Kil Ko ,  Dong Woo Ha ,  Seog Whan Kim ,  Young Sik Jo

IPC: H01B12/06 ,  H01B1/02

Abstract: The present invention relates to a stacking structure of a superconducting wire. The present invention provides a superconducting wire in which a metal substrate, a buffer layer, a superconducting layer, and a stabilizing layer are stacked, the superconducting wire including: a plurality of wedges which penetrates through the superconducting layer and the buffer layer to connect the stabilizing layer and the metal substrate. According to the present invention, it is possible to provide the superconducting wire of which mechanical strength is improved to have high resistance against to deterioration or delamination. Further, the present invention may provide the superconducting wire which is self-protectable against a quench phenomenon. Further, the present invention may provide the superconducting wire which is suitable for application of a high magnetic field.

公开(公告)号：US10184059B2

公开(公告)日：2019-01-22

申请号：US15362956

申请日：2016-11-29

Applicant: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE

Inventor： Joong Tark Han ,  Geon Woong Lee ,  Jeong In Jang ,  Seung Yol Jeong ,  Hee Jin Jeong ,  Seon Hee Seo

IPC: C09D11/52 ,  B22F1/00 ,  B22F1/02 ,  B22F9/24 ,  C09C1/48 ,  C01B32/174 ,  C01B32/194

Abstract: Disclosed are a nanometal-nanocarbon hybrid material and a method of manufacturing the same, the method including modifying the surface of nanocarbon to introduce a functional group to conductive nanocarbon; mixing the surface-modified nanocarbon with an isocyanate-based compound and a pyrimidine-based compound and allowing them to react, thus forming a nanocarbon dispersion reactive to metal ions; adding the nanocarbon dispersion with a metal salt precursor, a reducing agent and a solvent, thus manufacturing nanometal particles; and separating a hybrid of the nanometal particles having the nanocarbon bound thereto. Thereby, nanocarbon is mixed with an isocyanate-based compound and a pyrimidine-based compound and then allowed to react, whereby the nanocarbon reactive with metal ions is used as an additive, thus obtaining a nanometal having a low-dimensional shape having less than three dimensions. Also, a nanometal can be hybridized with nanocarbon simultaneously with the formation of the nanometal, and solvent dispersibility is ensured by a functional group formed by mixing and reacting an isocyanate-based compound and a pyrimidine-based compound, ultimately facilitating the preparation of conductive ink or paste.

公开(公告)号：US09723990B2

公开(公告)日：2017-08-08

申请号：US13927712

申请日：2013-06-26

Applicant: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE

Inventor： Uk Kang ,  Garry V Papayan ,  Il Hyung Shin ,  Dae Sic Lee ,  Soo Jin Bae ,  Guang Hoon Kim

IPC: A61B5/05 ,  A61B5/00

CPC classification number: A61B5/0071 ,  A61B5/7225

Abstract: The present invention provides a transmitted light detection type measurement apparatus for skin fluorescence, which is configured to perform light irradiation and light detection on a reference sample and a measurement target. The apparatus includes a first light source, a second light source, a first optical detector and a second optical detector, a light source switching controller, and an operator.

公开(公告)号：US20170163171A1

公开(公告)日：2017-06-08

申请号：US15367700

申请日：2016-12-02

Applicant: Industry-Academic Cooperation Foundation, Yonsei University ,  Korea Electrotechnology Research Institute

Inventor： Jungwook PARK

IPC: H02M7/537

CPC classification number: H02M7/537 ,  H02M7/483 ,  H02M2007/4835

Abstract: Disclosed is an apparatus and method for controlling an asymmetric modular multilevel converter which allow numerous levels to be expressed according to a combination of modules each using a different voltage, comprising: an asymmetric arm configured with a full bridge and a half bridge; and a control method of controlling each capacitor level of the full bridges and capacitor level of the remaining half bridges to be different from one another by a full bridge structure, wherein each module configuring the asymmetric arm uses a different voltage and an output voltage is expressed by a combination thereof.

公开(公告)号：US20160329709A1

公开(公告)日：2016-11-10

申请号：US14964954

申请日：2015-12-10

Applicant: Industry-Academic Cooperation Foundation, Yonsei University ,  Korea ElectroTechnology Research Institute

Inventor： Jungwook PARK ,  Soohyoung Lee

IPC: H02J3/16 ,  G05B13/02

CPC classification number: G05B13/026 ,  H02J3/08 ,  H02J3/48 ,  H02J2003/388 ,  Y02P80/14 ,  Y02P80/152

Abstract: An inverter-based stand-alone microgrid control system using a PMU, in which a converter controller configured to control a converter that determines a voltage and a phase of a point where a plurality of distributed power supply devices is interconnected. The system includes a time correction unit configured to provide a time corrected on the basis of time information received from a GPS; a signal comparison/generation unit configured to compare a sine wave generated according to a voltage magnitude and a phase reference signal with a harmonic carrier signal on the basis of the time provided by the time correction unit, and generate a PWM signal; and a switch operation control unit configured to apply the PWM signal from the signal comparison/generation unit to the converter, and operate a switch.

Abstract translation: 一种使用PMU的基于逆变器的独立微电网控制系统，其中配置成控制转换器的转换器控制器，所述转换器控制器确定多个分布式供电装置互连的点的电压和相位。 该系统包括：时间校正单元，被配置为提供基于从GPS接收的时间信息校正的时间; 信号比较/生成单元，被配置为基于由时间校正单元提供的时间将根据电压幅度和相位参考信号产生的正弦波与谐波载波信号进行比较，并生成PWM信号; 以及开关操作控制单元，被配置为将来自信号比较/生成单元的PWM信号施加到转换器，并且操作开关。

公开(公告)号：US20160285250A1

公开(公告)日：2016-09-29

申请号：US15027744

申请日：2014-09-05

Applicant: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE

Inventor： Woo Young LEE ,  Sang Hun PARK ,  Ki Dong SONG ,  Hyun Jae JANG ,  Jin Kyo CHONG

IPC: H02H3/087

CPC classification number: H02H3/087 ,  H01H9/54 ,  H01H9/542 ,  H01H9/547 ,  H01H33/596 ,  H01H2009/543 ,  H01H2009/544 ,  H01H2009/546

Abstract: Provided is a DC current breaker having a high-speed breaking function appropriate to a voltage-type converter and a DC current breaking method. In addition, provided is a DC current breaker and a DC current breaking method capable of reducing cost of the breaker and securing economical competiveness by using a relatively simple configuration. The DC current breaker for breaking a DC current at the time of occurrence of an accident includes: a main conduction unit including three high-speed mechanical switches installed to be connected in series to a main conduction path for conducting a normal-operation-state current; a power semiconductor switch installed to be connected in parallel to one high-speed mechanical switch among the high-speed mechanical switches installed in the main conduction unit for current breaking of the main conduction unit; a capacitor installed on a circuit connected in parallel to the main conduction path; and a surge arrester installed to be connected in parallel to the capacitor connected in parallel to the main conduction path. The DC current breaking method uses the DC current breaker.

Abstract translation: 提供具有适用于电压型转换器的高速断路功能的DC电流断路器和DC电流断路方法。 此外，提供了一种DC电流断路器和DC电流断路方法，其能够通过使用相对简单的配置来降低断路器的成本并确保经济的竞争力。 用于在发生事故时断开直流电流的直流电流断路器包括：主导通单元，其包括三个高速机械开关，其安装成串联连接到用于进行正常工作状态电流的主导通路径 ; 功率半导体开关，其安装成并联连接到安装在主导电单元中的高速机械开关中的一个高速机械开关，用于主导电单元的电流断开; 安装在与主导通路并联连接的电路上的电容器; 以及与并联连接到与主导通路并联连接的电容器的电涌放电器。 直流断路方式使用直流断路器。

公开(公告)号：US20150248952A1

公开(公告)日：2015-09-03

申请号：US14713233

申请日：2015-05-15

Applicant: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE

Inventor： Rock-kil Ko ,  Myung-hwan Sohn ,  Young-sik Jo ,  Dong-woo Ha ,  Boo-min Kang ,  Dong-hyuk Kim

IPC: H01B12/06 ,  H01L39/24 ,  H01B13/00 ,  H01L39/12

CPC classification number: H01B12/06 ,  H01B13/0036 ,  H01L39/12 ,  H01L39/143 ,  H01L39/24 ,  H01L39/248 ,  Y10T428/2944

Abstract: A high-temperature superconducting wire material comprising: a pre-superconducting wire material layer formed by forcibly removing a metal substrate from a superconducting wire material formed by including the metal substrate, a buffer layer formed on the upper surface of the metal substrate and a superconducting conductive layer formed on the upper surface of the buffer layer; a silver (Ag) protective layer formed on the lower surface of the pre-superconducting wire material layer; and a copper (Cu) protective layer formed on the lower surface of the Ag protective layer. Since a superconducting wire material is formed by stripping a metal substrate of a second-generation high-temperature superconducting wire material and forming a metal protective layer, advantages include the reduction of a magnetization loss due to the magnetism of the substrate, excellent stability of the wire material, and increases in Je (engineering current density) due to the minimization of the thickness of the superconducting wire material.

Abstract translation: 一种高温超导线材，包括：预超导线材层，其由通过包括所述金属基底形成的超导线材强制去除金属基底而形成，所述超导线材形成在所述金属基板的上表面上的缓冲层和超导线材 形成在缓冲层的上表面上的导电层; 形成在超导线材层的下表面上的银（Ag）保护层; 以及形成在Ag保护层的下表面上的铜（Cu）保护层。 由于通过剥离第二代高温超导线材的金属基板并形成金属保护层来形成超导线材，所以优点包括由于基板的磁性而导致的磁化损耗的降低，优异的稳定性 线材，并且由于超导线材的厚度最小而使Je（工程电流密度）增加。

公开(公告)号：US09060405B2

公开(公告)日：2015-06-16

申请号：US14088774

申请日：2013-11-25

Applicant: Korea Electrotechnology Research Institute

Inventor： Jong Hyun Kim ,  Myung Hyo Ryu ,  Ju Won Baek ,  Kill Soo Seo ,  Hyoung Woo Kim

IPC: H05B33/08 ,  H05B37/02

CPC classification number: H05B33/0845 ,  H05B33/0809 ,  H05B33/0812 ,  H05B33/0824 ,  H05B37/02 ,  Y02B20/343 ,  Y02B20/345

Abstract: The present invention relates to an apparatus for controlling the operation of an LED and to a method for controlling the drive current thereof. More particularly, the present invention relates to an apparatus for controlling the operation of an LED, which is capable of driving a direct current-operated LED module or an alternating current-operated LED module using alternating current power, and to a method for controlling the drive current of the apparatus. According to the present invention, the drive current of an LED array can be output in the form of a sine wave by a constant-current regulation or constant-power regulation even when input voltage varies, thus suppressing harmonics, improving the power factor, minimizing flicker, and preventing a temperature increase in the LED array and in an LED operation control circuit.

Abstract translation: 本发明涉及一种用于控制LED的操作的装置及其驱动电流的控制方法。 更具体地，本发明涉及一种用于控制LED的操作的装置，其能够使用交流电来驱动直流操作的LED模块或交流电驱动的LED模块，以及一种用于控制 驱动设备的电流。 根据本发明，即使当输入电压变化时，LED阵列的驱动电流可以通过恒定电流调节或恒定功率调节以正弦波的形式输出，从而抑制谐波，提高功率因数，最小化 闪烁，并防止LED阵列和LED操作控制电路中的温度升高。

公开(公告)号：US08992739B2

公开(公告)日：2015-03-31

申请号：US13910321

申请日：2013-06-05

Applicant: Korea Electrotechnology Research Institute

Inventor： Yoon-cheol Ha ,  Chil-hoon Doh ,  Chu-hyun Cho

IPC: H05F3/00 ,  B01J19/08 ,  H01M4/134 ,  H01M4/38 ,  H01M4/36 ,  H01M10/052

CPC classification number: B01J19/088 ,  H01M4/134 ,  H01M4/364 ,  H01M4/386 ,  H01M10/052 ,  Y02E60/122 ,  Y10S977/773 ,  Y10S977/932 ,  Y10S977/948

Abstract: A method for manufacturing a silicon-based nanocomposite anode active material for the lithium secondary battery and the lithium secondary battery using same, comprising the following steps: a first step of mounting a silicon-based wire between two electrodes, which are placed in a methanol-based solvent atmosphere, and manufacturing a dispersion solution in which silicon-based nanoparticles are dispersed by means of high-voltage pulse discharging; and a second step of manufacturing a silicon-based nanocomposite body by compositing the silicon-based nanoparticles in the solution and a different type of material. By using the silicon-based nanocomposite anode in the lithium secondary battery according to the method, the advantages provided are of improving electronic conductivity and lithium-ion conductivity by means of the different type of material having a high-capacity characteristic, which encases the silicon-based nanoparticles, and of providing the lithium-ion secondary battery having enhanced battery capacity and charge/discharge cycle properties.

Abstract translation: 一种锂二次电池用硅基纳米复合负极活性物质的制造方法以及使用该锂二次电池的锂二次电池的制造方法，其特征在于，包括以下步骤：将硅基线材安装在放置于甲醇 的溶剂气氛，制造通过高压脉冲放电使硅系纳米粒子分散的分散液; 以及通过将溶液中的硅基纳米颗粒与不同类型的材料复合来制造硅基纳米复合体的第二步骤。 通过根据该方法在锂二次电池中使用硅基纳米复合阳极，所提供的优点是通过具有高容量特性的不同类型的材料来改善电子导电性和锂离子传导性，其包含硅 并且提供具有增强的电池容量和充电/放电循环特性的锂离子二次电池。

公开(公告)号：US20150054372A1

公开(公告)日：2015-02-26

申请号：US14466894

申请日：2014-08-22

Applicant: KOREA ELECTROTECHNOLOGY RESEARCH INSTITUTE

Inventor： Shi Uk CHUNG ,  Byung Chul WOO ,  Ji Young LEE ,  Yon Do CHUN ,  Do Kwan HONG

IPC: H02K1/24 ,  H02K41/03 ,  H02K1/17 ,  H02K1/12 ,  H02K1/27

CPC classification number: H02K1/24 ,  H02K1/2746 ,  H02K1/276 ,  H02K1/278 ,  H02K29/03 ,  H02K41/031

Abstract: There is provided an electric machine, which is configured such that magnetic poles provided on a stator and a mover or rotor of the electric machine have an asymmetric shape, thus being capable of reducing a torque ripple.

Abstract translation: 提供了一种电机，其被配置为使得设置在定子上的磁极和电机的动子或转子具有不对称形状，从而能够减小转矩波动。