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    • 9. 发明公开
    • 멀티레벨 컨버터 HVDC 시스템에서 DC 사고 감지 장치 및 방법
    • HVDC DC用于感测多电平转换器HVDC系统中的DC故障电流的设备和方法
    • KR20180017888A
    • 2018-02-21
    • KR20160102400
    • 2016-08-11
    • 연세대학교 산학협력단
    • 허견김희진강재식김상민나종서
    • G01R19/165G01R19/25G01R19/30H02J3/36
    • Y02E60/60G01R19/16571G01R19/16557G01R19/2506G01R19/2513G01R19/30H02J3/36
    • 본발명은멀티레벨컨버터가정류기및 인버터로동작할때, 다양한조건에서도빠르고정확하게 DC 사고의감지가가능한멀티레벨컨버터 HVDC 시스템에서 DC 사고감지장치및 방법을제공하기위한것으로서, 멀티레벨컨버터의정상상태전류의패턴중 상위암전류및 하위암전류를측정하는암전류측정부와, 상기암전류측정부에서측정된상위암전류및 하위암전류를미분하여상위암전류미분값및 하위암전류미분값을각각산출하는미분기와, 상기미분기에서산출된상위암전류미분값및 하위암전류미분값을기반으로디지털프로세서연산시 샘플링된이전값과현재값을이용해도함수연산을통해각각의최대값을산출하는최대값산출부와, 상위암전류미분값및 하위암전류미분값을각각최대값과비교하는비교부와, 상기비교부에서비교된결과를기반으로 AND 논리연산을수행하는논리연산부와, 상기논리연산부에서수행된논리연산결과를기반으로 DC 사고감지여부를확인하기위한감지신호를발생시키는감지신호발생부를포함하여구성되는데있다.
    • 为在各种条件下的多级转换器提供时间,DC事件检测装置和方法中的可能的多级转换器HVDC系统检测快速,准确的DC事故的本发明操作为整流器和逆变器,多级转换器的正常状态 和用于测量电流的图案的高的暗电流和低的暗电流的暗电流测量单元,和一个微分器,其中通过区分在暗电流测量单元测量的上暗电流和低暗电流计算出更高的暗电流差和低的暗电流微分值,分别,微分 基于较高的暗电流差和低暗电流导数值的先前取样用于数字处理器运算值和用于通过微分运算与当前值计算各个最大值计算出的最大值,所述上的暗电流的差分值在计算和 比较器,用于将较低的暗电流差分值与各自的最大值进行比较;以及比较器,用于基于比较器中的比较结果执行与逻辑运算 以及感测信号发生器,用于基于由逻辑运算单元执行的逻辑运算的结果来产生用于确认是否检测到DC事件的感测信号。
    • 10. 发明授权
    • 초전도 선재의 권선 방법 및 그 방법에 의해 제조된 마그넷
    • 超导线及其制造的磁铁的卷绕方法
    • KR101281779B1
    • 2013-07-02
    • KR1020120030739
    • 2012-03-26
    • 연세대학교 산학협력단
    • 고태국강재식조현철최석진나진배장재영황영진김형준
    • B65H54/02B65H57/02
    • H01F41/048H01F6/06Y10T29/49014
    • PURPOSE: A winding method of a superconducting wire and a magnet manufactured thereby are provided to manufacture a magnet with the minimized joint portion of superconducting wires. CONSTITUTION: A winding method of a superconducting wire is as follows. A first bobbin (100) comprising a source reel, in which a superconducting wire is wound, a first lane (120a), and a second lane (120b) and a second bobbin (101) comprising third and fourth lanes (120c,120d) are prepared. The superconducting wire wound around the source reel is wound around the first lane of the first bobbin in a first direction, and the first and second bobbins are fixed to each other. The superconducting wire wound around the source reel is wound around the third lane of the second bobbin in a first direction, and the first and second bobbins are separated from each other. The superconducting wire wound around the first lane is wound the fourth lane of the second bobbin in a second direction, and the superconducting wire wound around the third lane is wound around the source reel in a second direction.
    • 目的:提供一种超导线和由此制造的磁体的绕组方法以制造具有超导线的最小化接合部分的磁体。 构成:超导线的绕线方法如下。 包括其中缠绕有超导线的源卷筒的第一线轴(100),包括第三和第四车道(120c,120d)的第一车道(120a)和第二车道(120b)和第二线轴(101) 准备好了 卷绕在源卷筒上的超导线绕着第一线轴的第一通道在第一方向缠绕,第一和第二线轴相互固定。 卷绕在源卷轴上的超导线绕着第二线轴的第三通道在第一方向缠绕,并且第一和第二线轴彼此分离。 围绕第一通道缠绕的超导线在第二方向上缠绕第二线轴的第四通道,绕第三通道缠绕的超导线沿着第二方向缠绕在源极卷轴上。