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公开(公告)号：KR102237492B1
公开(公告)日：2021-04-09
申请号：KR1020190172219A
申请日：2019-12-20
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원 , 철강융합신기술연구조합 , 주식회사 에스엔엔씨
IPC: C21C5/52
CPC classification number: C21C5/52 , C21C5/5229 , C21C2005/5235 , C21C2005/5288
Abstract: 본 발명의 실시 형태에 따른 합금철 전기로는 컨택트 클램프와, 전극봉 압하 설비를 포함하고, 상기 전극봉 압하 설비는, 상부 클램프 및 하부 클램프와, 복수의 압하 실린더와, 복수의 로드셀과, 연산부와, 상기 스틸 케이싱 상부까지의 거리 및 페이스트 레벨까지의 거리를 측정하는 레이저 센서를 포함하고, 전극봉의 압하 과정에서 상기 복수의 압하 실린더에 의해 상기 상부 클램프가 하강할 때, 상기 복수의 로드셀에 상기 스틸 케이싱의 무게, 상기 전극봉의 무게, 및 상기 상부 클램프의 무게를 합산한 무게와 일치하는 하중이 가해지며, 상기 연산부는 상기 복수의 로드셀로부터 입력되는 하중 데이터로부터 상기 전극봉의 무게를 측정하고, 상기 레이저 센서로부터 상기 스틸 케이싱 상부까지의 거리와 상기 페이스트 레벨까지의 거리를 수신하고, 상기 전극봉의 무게, 상기 스틸 케이싱 상부까지의 거리, 및 상기 상기 페이스트 레벨까지의 거리를 이용하여 상기 전극봉의 하부 길이를 측정하고, 상기 전극봉의 하부 길이는 상기 컨택트 클램프로부터 상기 전극봉 하단부까지의 거리이다.
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公开(公告)号：KR100387588B1
公开(公告)日：2003-06-18
申请号：KR1020000082180
申请日：2000-12-26
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: H02J9/00
Abstract: PURPOSE: A phase difference removing bypass method is provided to prevent fluctuation of output voltage caused due to the phase difference between input line voltage and output line voltage during bypass operation. CONSTITUTION: A phase difference removing bypass method comprises a first step of judging whether a bypass switch is turned on by checking a bypass switch; a second step of operating an uninterruptable power supply(UPS) as an inverter by opening an input breaker, and reducing output frequency of inverter; a third step of judging whether the voltages of input and output lines have the same phase; and a fourth step of disabling operation of the UPS by opening an output breaker and closing a bypass MC, if the voltages of input and output lines are the same.
Abstract translation: 目的：提供一种相位差消除旁路方法，以防止在旁路操作期间由于输入线电压与输出线电压之间的相位差引起的输出电压的波动。 构成：一种相位差消除旁路方法包括：第一步，通过检查旁路开关判断旁路开关是否接通; 通过打开输入断路器来操作作为逆变器的不间断电源（UPS）的第二步骤，并且降低逆变器的输出频率; 判断输入线和输出线的电压是否具有相同的相位的第三步骤; 以及如果输入线和输出线的电压相同，则通过打开输出断路器并闭合旁路MC来禁用UPS的操作的第四步骤。
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公开(公告)号：KR1020020054035A
公开(公告)日：2002-07-06
申请号：KR1020000082630
申请日：2000-12-27
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: H02J9/00
Abstract: PURPOSE: A phase difference removal bypass apparatus in an UPS of an APF configuration is provided to remove a phase difference and perform a bypass operation when by-passing the UPS. CONSTITUTION: An input line has an input line voltage(AC). A link inductor(5) is coupled with the input line. An input switch(2) is coupled with the link inductor(5). An input switch MC(3) or an SCR switch(6) is coupled with the input switch(2). An output switch(4) is coupled with the input switch MC(3) or SCR switch(6). An output line is connected to the input line voltage(AC) through a bypass MC(1). The output line has an output line voltage(LO). An IGBT stack(7) is coupled between the input switch MC(3) or SCR switch(6) and the output switch(4). A battery switch(8) is coupled with the IGBT stack(7). A battery(9) is coupled with the battery switch(8).
Abstract translation: 目的：提供APF配置的UPS中的相位差去除旁路装置，以消除相位差，并在旁路UPS时进行旁路操作。 构成：输入线具有输入线电压（AC）。 链路电感（5）与输入线耦合。 输入开关（2）与链路电感（5）耦合。 输入开关MC（3）或SCR开关（6）与输入开关（2）耦合。 输出开关（4）与输入开关MC（3）或SCR开关（6）耦合。 输出线通过旁路MC（1）连接到输入线电压（AC）。 输出线具有输出线电压（LO）。 IGBT堆叠（7）耦合在输入开关MC（3）或SCR开关（6）和输出开关（4）之间。 电池开关（8）与IGBT堆叠（7）耦合。 电池（9）与电池开关（8）耦合。
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公开(公告)号：KR1020010057964A
公开(公告)日：2001-07-05
申请号：KR1019990061389
申请日：1999-12-23
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: G01R31/00
Abstract: PURPOSE: A transformer characteristic analysis apparatus using inverter is provided to forecast abnormal condition of transformer easily by analyzing frequency characteristic of several parameter clearly at input, output part of transformer. CONSTITUTION: A transformer characteristic analysis apparatus is composed of an inverter(21), a control part(22), and a signal analyser(23). The inverter(21) is connected to a transformer(24) in a series at upper stream of first side of the transformer(24) which power is input to and supplies power to first side of the transformer(24). The signal analyser(23) has electric signal input part of two channel, and a first channel receives and measures input of voltage(V1) and current(I1) which is output from the inverter(21), and a second channel receives and measures input of voltage(V2) and current(I2) which is output from secondary side of the transformer(24), and then the measured signal is transferred to an analysis part. The analysis part analyses frequency of voltage signal and current signal of each channel and outputs characteristic of the transformer by formula or graph.
Abstract translation: 目的：提供变压器变压器特性分析装置，通过在变压器输入，输出部分清楚分析几个参数的频率特性，轻松预测变压器异常情况。 构成：变压器特性分析装置由逆变器（21），控制部（22）和信号分析器（23）构成。 逆变器（21）在变压器（24）的第一侧的上游串联连接到变压器（24），该变压器的功率被输入并向变压器（24）的第一侧供电。 信号分析器（23）具有双通道的电信号输入部，第一通道接收并测量从逆变器（21）输出的电压（V1）和电流（I1）的输入，第二通道接收并测量 输入从变压器（24）的次级侧输出的电压（V2）和电流（I2），然后测量的信号被传送到分析部件。 分析部分分析每个通道的电压信号和电流信号的频率，并通过公式或图表输出变压器的特性。
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公开(公告)号：KR102255359B1
公开(公告)日：2021-05-25
申请号：KR1020190168824
申请日：2019-12-17
Applicant: 주식회사 포스코 , 재단법인 포항산업과학연구원 , 철강융합신기술연구조합 , 주식회사 에스엔엔씨
IPC: C21C5/52
Abstract: 본발명은, 전기로내의전극봉이미지를이용하여슬래그의레벨을측정할수 있는슬래그레벨측정장치가제공하기위한것으로, 본발명의일 실시예에따른슬래그레벨측정장치는전기로내의전극봉의이미지를획득하는이미지획득부, 상기이미지획득부에서획득한전극봉의이미지로부터의전극봉길이와사전에설정된사양에따른전극봉길이에따라슬래그의레벨을측정하는계산부, 상기이미지획득부의이미지획득시점을제어하는제어부를포함할수 있다.
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Patent Agency Ranking
公开(公告)号：KR100387589B1
公开(公告)日：2003-06-18
申请号：KR1020000082630
申请日：2000-12-27
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: H02J9/00
Abstract: PURPOSE: A phase difference removal bypass apparatus in an UPS of an APF configuration is provided to remove a phase difference and perform a bypass operation when by-passing the UPS. CONSTITUTION: An input line has an input line voltage(AC). A link inductor(5) is coupled with the input line. An input switch(2) is coupled with the link inductor(5). An input switch MC(3) or an SCR switch(6) is coupled with the input switch(2). An output switch(4) is coupled with the input switch MC(3) or SCR switch(6). An output line is connected to the input line voltage(AC) through a bypass MC(1). The output line has an output line voltage(LO). An IGBT stack(7) is coupled between the input switch MC(3) or SCR switch(6) and the output switch(4). A battery switch(8) is coupled with the IGBT stack(7). A battery(9) is coupled with the battery switch(8).
Abstract translation: 目的：提供APF配置的UPS中的相位差移除旁路装置，以在绕过UPS时移除相位差并执行旁路操作。 构成：输入线路具有输入线路电压（AC）。 链路电感器（5）与输入线耦合。 输入开关（2）与链路电感器（5）耦合。 输入开关MC（3）或SCR开关（6）与输入开关（2）耦合。 输出开关（4）与输入开关MC（3）或SCR开关（6）耦合。 输出线通过旁路MC（1）连接到输入线电压（AC）。 输出线具有输出线电压（LO）。 IGBT堆叠（7）连接在输入开关MC（3）或SCR开关（6）与输出开关（4）之间。 电池开关（8）与IGBT堆叠（7）耦合。 电池（9）与电池开关（8）连接。
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公开(公告)号：KR102237492B1
公开(公告)日：2021-04-09
申请号：KR1020190172219
申请日：2019-12-20
Applicant: 주식회사 포스코 , 철강융합신기술연구조합 , 재단법인 포항산업과학연구원 , 주식회사 에스엔엔씨
IPC: C21C5/52
Abstract: 본발명의실시형태에따른합금철전기로는컨택트클램프와, 전극봉압하설비를포함하고, 상기전극봉압하설비는, 상부클램프및 하부클램프와, 복수의압하실린더와, 복수의로드셀과, 연산부와, 상기스틸케이싱상부까지의거리및 페이스트레벨까지의거리를측정하는레이저센서를포함하고, 전극봉의압하과정에서상기복수의압하실린더에의해상기상부클램프가하강할때, 상기복수의로드셀에상기스틸케이싱의무게, 상기전극봉의무게, 및상기상부클램프의무게를합산한무게와일치하는하중이가해지며, 상기연산부는상기복수의로드셀로부터입력되는하중데이터로부터상기전극봉의무게를측정하고, 상기레이저센서로부터상기스틸케이싱상부까지의거리와상기페이스트레벨까지의거리를수신하고, 상기전극봉의무게, 상기스틸케이싱상부까지의거리, 및상기상기페이스트레벨까지의거리를이용하여상기전극봉의하부길이를측정하고, 상기전극봉의하부길이는상기컨택트클램프로부터상기전극봉하단부까지의거리이다.
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公开(公告)号：KR100387590B1
公开(公告)日：2003-06-18
申请号：KR1020000082181
申请日：2000-12-26
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: H02M1/12
Abstract: PURPOSE: A power rectifier apparatus is provided to effectively perform power factor and harmonics compensation without using a manual filter system, while reducing installation space. CONSTITUTION: A DC motor load system comprises an AC power(4); a three-phase thyristor rectifier(1) for rectifying the AC power into a DC power; a DC motor(3) operating by the DC power supplied from the three-phase thyristor rectifier; a load(5) operating by the DC motor; and an inverter(6) connected, taking the place of a manual filter for compensating harmonics and low power factor, to input/output ports of the three-phase thyristor rectifier. The inverter serves as a filter for removing harmonics and as a device for compensating lower power factor, while transmitting the energy of DC motor to the AC power during braking.
Abstract translation: 目的：提供功率整流装置，在不使用手动过滤系统的情况下有效地执行功率因数和谐波补偿，同时减少安装空间。 组成：直流电动机负载系统包括交流电源（4）; 三相晶闸管整流器（1），用于将交流电整流成直流电; 由三相晶闸管整流器提供的直流电动作的直流电动机（3） 由DC电动机操作的负载（5） 和一个逆变器（6），代替用于补偿谐波和低功率因数的手动滤波器，连接到三相晶闸管整流器的输入/输出端口。 逆变器作为消除谐波的滤波器，作为补偿较低功率因数的装置，同时在制动过程中将直流电机的能量传递给交流电。
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公开(公告)号：KR1020020052743A
公开(公告)日：2002-07-04
申请号：KR1020000082181
申请日：2000-12-26
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: H02M1/12
Abstract: PURPOSE: A power rectifier apparatus is provided to effectively perform power factor and harmonics compensation without using a manual filter system, while reducing installation space. CONSTITUTION: A DC motor load system comprises an AC power(4); a three-phase thyristor rectifier(1) for rectifying the AC power into a DC power; a DC motor(3) operating by the DC power supplied from the three-phase thyristor rectifier; a load(5) operating by the DC motor; and an inverter(6) connected, taking the place of a manual filter for compensating harmonics and low power factor, to input/output ports of the three-phase thyristor rectifier. The inverter serves as a filter for removing harmonics and as a device for compensating lower power factor, while transmitting the energy of DC motor to the AC power during braking.
Abstract translation: 目的：提供一种动力整流装置，可在不使用手动过滤系统的同时有效地执行功率因数和谐波补偿，同时减少安装空间。 构成：直流电机负载系统包括交流电源（4）; 用于将AC电力整流为DC电力的三相晶闸管整流器（1）; 由三相晶闸管整流器提供的直流电源工作的直流电动机（3）; 由直流电动机操作的负载（5）; 以及将三相晶闸管整流器的输入/输出端口替代用于补偿谐波和低功率因数的手动滤波器的逆变器（6）。 逆变器用作去除谐波的滤波器，并且作为用于补偿较低功率因数的装置，同时在制动期间将DC电动机的能量传送到AC电力。
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公开(公告)号：KR1020020052742A
公开(公告)日：2002-07-04
申请号：KR1020000082180
申请日：2000-12-26
Applicant: 재단법인 포항산업과학연구원 , 철강융합신기술연구조합
IPC: H02J9/00
Abstract: PURPOSE: A phase difference removing bypass method is provided to prevent fluctuation of output voltage caused due to the phase difference between input line voltage and output line voltage during bypass operation. CONSTITUTION: A phase difference removing bypass method comprises a first step of judging whether a bypass switch is turned on by checking a bypass switch; a second step of operating an uninterruptable power supply(UPS) as an inverter by opening an input breaker, and reducing output frequency of inverter; a third step of judging whether the voltages of input and output lines have the same phase; and a fourth step of disabling operation of the UPS by opening an output breaker and closing a bypass MC, if the voltages of input and output lines are the same.
Abstract translation: 目的：提供相位差去除旁路方法，以防止旁路运行期间由于输入线电压和输出线电压之间的相位差引起的输出电压波动。 构成：相位差去除旁路方法包括：通过检查旁路开关判断旁路开关是否接通的第一步骤; 通过打开输入断路器来操作不间断电源（UPS）作为逆变器并减少逆变器的输出频率的第二步骤; 判断输入输出线的电压是否相同的第三步骤; 以及如果输入和输出线的电压相同，则通过打开输出断路器并闭合旁路MC而禁用UPS的操作的第四步骤。
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