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公开(公告)号：KR1020000074069A
公开(公告)日：2000-12-05
申请号：KR1019990017767
申请日：1999-05-18
Applicant: 한국전기연구원
IPC: H02K41/02
Abstract: PURPOSE: A bidirectional linear induction motor is provided to realize a fishing place by controlling a movement of a model fish. CONSTITUTION: A bidirectional linear induction motor comprises a stator(11) and a moving element(12) installed on the stator(11) so to be shifted. In the stator(11), a plurality of first magnetic iron cores(2) are arranged in an x-axis direction and has a length of an y-axis direction. A plurality of second magnetic iron cores(1) are arranged in the y-axis direction and has a length of an x-axis direction and prominence and depression parts. A plurality of first windings(4) are wound between the second magnetic iron cores(1) so as to be contacted with an upper plane of the first magnetic iron cores(2). A plurality of second windings(3) are wound according to the depression part of the second magnetic iron core(1) so as to be perpendicular to the first windings(4).
Abstract translation: 目的：提供双向线性感应电机，通过控制鱼类的运动来实现钓鱼场所。 构成：双向线性感应电动机包括定子（11）和安装在定子（11）上以移动的移动元件（12）。 在定子（11）中，多个第一磁性铁芯（2）沿x轴方向排列，长度为y轴方向。 多个第二磁性铁芯（1）沿y轴方向排列，具有x轴方向的长度和突出部和凹部。 多个第一绕组（4）缠绕在第二磁性铁芯（1）之间以便与第一磁性铁芯（2）的上平面接触。 多个第二绕组（3）根据第二磁性铁芯（1）的凹陷部分垂直于第一绕组（4）卷绕。
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公开(公告)号：KR1020150051677A
公开(公告)日：2015-05-13
申请号：KR1020130133468
申请日：2013-11-05
Applicant: 한국전기연구원
Abstract: 본발명은멀티레벨컨버터의변조방법에관한것으로서, 캐리어(Carrier)를사용하지않고전류제어주기동안 Band와 Ph를이용하여스위칭전이가일어나는스위치를찾아내어, 온혹은오프상태를유지하는스위치의동작을결정하면서스위칭전이가일어나도록하는펄스폭 변조방법에관한것이다.
Abstract translation: 本发明涉及一种多电平转换器的脉宽调制方法。 本发明涉及一种脉冲宽度调制方法，该方法在不使用载波的情况下，在当前控制周期期间通过使用频带和ph来搜索产生切换转换的开关，确定保持开启或关闭状态的开关的操作，并产生 切换转换。
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公开(公告)号：KR101379202B1
公开(公告)日：2014-03-31
申请号：KR1020120124827
申请日：2012-11-06
Applicant: 한국전기연구원
Abstract: The purpose of the present invention is to provide balance offset control device and method for controlling a neutral-point voltage in a neutral point clamped (NPC) converter, which resolve DC-link voltage imbalance occurring in the NPC converter by adding an output value of a balance offset controller to a three-phase reference voltage for pulse width modulation (PWD) to calculate a final reference voltage. According to the present invention, the balance offset control device for controlling a neutral-point voltage in a NPC converter comprises: a voltage control unit for reducing a voltage difference between an upper end capacitor and a lower end capacitor that are arranged across the neutral point, to a permissible limit; a sign determining unit for determining a sign by calculating the direction of a current flowing at the neutral point by each sector; a voltage limiting unit for limiting the level of a balance offset voltage, thereby resolving DC-link voltage imbalance by adding an output value of a balance offset controller to a three-phase reference voltage for PWD. [Reference numerals] (AA) Synchronous 2 phase/stationary 2 phase transformation formula (2); (BB) Stationary 2 phase/stationary 3 phase transformation formula (3); (CC) Offset voltage calculation formula (5) or (10); (DD) SVPWM reference voltage calculation formula (7) or (10); (EE) Final reference voltage calculation formula (23); (FF) Balance switch On/Off (13); (GG) Sign_bal formula (16)~(22); (HH) Controller (14) or (15); (II) Limit value (24)
Abstract translation: 本发明的目的是提供一种用于控制中性点钳位（NPC）转换器中的中性点电压的平衡偏移控制装置和方法，该中性点钳位（NPC）转换器通过将NPC转换器中产生的直流链路电压不平衡相加， 用于脉冲宽度调制（PWD）的三相参考电压的平衡偏移控制器来计算最终参考电压。 根据本发明，用于控制NPC转换器中的中性点电压的平衡偏移控制装置包括：电压控制单元，用于减小跨越中性点的上端电容器和下端电容器之间的电压差 ，达到允许的限度; 符号确定单元，用于通过计算每个扇区在中性点处流动的电流的方向来确定符号; 电压限制单元，用于限制平衡偏移电压的电平，从而通过将平衡偏移控制器的输出值添加到PWD的三相参考电压来解决DC链路电压不平衡。 （标号）（AA）同步2相/静止2相变公式（2）; （BB）固定式2相/静止3相变换公式（3）; （CC）偏置电压计算公式（5）或（10）; （DD）SVPWM参考电压计算公式（7）或（10）; （EE）最终参考电压计算公式（23）; （FF）平衡开关开/关（13）; （GG）Sign_bal公式（16）〜（22）; （HH）控制器（14）或（15）; （二）限价值（24）
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公开(公告)号：KR1020120047528A
公开(公告)日：2012-05-14
申请号：KR1020100109140
申请日：2010-11-04
Applicant: 한국전기연구원
CPC classification number: H02P9/007 , H02P21/50 , H02P2101/10 , H02P2101/15
Abstract: PURPOSE: A wounded type induction generator control device which uses a feedback linearization method is provided to have a low voltage ride-through function by controlling a normal component and a reverse component in order to be linearized. CONSTITUTION: A measured value which divides stator voltage and current, rotor voltage and current, and stator magnetic flux and rotator magnetic flux into a normal component and a reverse component is obtained. The rotor current is classified as four signals by classifying the normal component and the reverse component as a d-shaft current and a q-shaft current. A normal component controller and a reverse component controller classify and control the four signals of the rotator current by using the measured value. The component controller and the reverse component controller classify control input and output of a linearized current by using a feedback linearization method about the d-shaft current and the q-shaft current.
Abstract translation: 目的：使用反馈线性化方法的受伤型感应发电机控制装置通过控制正常分量和反向分量来实现低电压穿越功能，以便线性化。 构成：获得将定子电压和电流，转子电压和电流以及定子磁通量和转子磁通量分成正常分量和反向分量的测量值。 通过将正常分量和反向分量分类为d轴电流和q轴电流，将转子电流分为四个信号。 正常部件控制器和反向部件控制器通过使用测量值对转子电流的四个信号进行分类和控制。 组件控制器和反向组件控制器通过使用关于d轴电流和q轴电流的反馈线性化方法对线性化电流的控制输入和输出进行分类。
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公开(公告)号：KR100768040B1
公开(公告)日：2007-10-17
申请号：KR1020060088161
申请日：2006-09-12
Applicant: 한국전기연구원
IPC: H02P21/00
CPC classification number: H02P9/007 , H02P9/46 , H02P2103/10
Abstract: A controller device for a doubly-fed induction generator with automatic grid synchronization is provided to reduce operation time and cost by removing a respective reset process of a synchronization angle when encoders are not be uniformly mounted at a specific position. A controller device for a doubly-fed induction generator with automatic grid synchronization includes a doubly-fed induction generator(410), a grid(420), a power conversion device(430), a control device(440), a slip angle calculator(450), and a synchronization unit(460). The slip angle calculator(450) receives a rotational angle from the doubly-fed induction generator(410), an offset angle generated from the synchronization unit(460), and a stator angle calculated from the stator voltage and inputs a slip angle to the control device(440). The synchronization unit(460) calculates the offset angle for controlling the synchronization angle and outputs the offset angle to the slip angle calculator(450), and complementary component of the d-axis current component and the q-axis component of the stator current and the control device(440).
Abstract translation: 提供一种用于具有自动电网同步的双馈感应发电机的控制器装置，通过在编码器不被均匀地安装在特定位置时去除相同的同步角度的复位过程来减少操作时间和成本。 一种用于具有自动电网同步的双馈感应发电机的控制器装置，包括双馈感应发电机（410），电网（420），电力转换装置（430），控制装置（440），滑移角计算器 （450）和同步单元（460）。 滑移角计算器（450）从双馈感应发电机（410）接收旋转角度，从同步单元（460）产生的偏移角度和从定子电压计算的定子角度，并将滑移角输入到 控制装置（440）。 同步单元（460）计算用于控制同步角度的偏移角度并将偏移角输出到滑移角计算器（450），并且将d轴电流分量和定子电流的q轴分量的互补分量和 控制装置（440）。
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Patent Agency Ranking
公开(公告)号：KR100427477B1
公开(公告)日：2004-04-28
申请号：KR1020010080064
申请日：2001-12-17
Applicant: 한국전기연구원
IPC: A61B6/03
Abstract: PURPOSE: A speed control apparatus is provided to reduce a speed ripple by adding the compensation current which is applied in accordance with the size and phase of the eccentric load to the driving current component. CONSTITUTION: A speed control apparatus comprises AC/DC converters(301,302) for converting the AC current for two phases from among the three-phase current being applied to the motor; a three phase-two phase coordinate transformation unit(303) for transforming the converted DC current into two-phase current of d and q axes; a speed detection unit(304) for detecting speed of the motor; a proportional integral controller(305) for performing a proportional integral control for the variation between the reference speed and the detected speed; a limiter(306) for restricting the amplitude with respect to the input waveform; a control current compensation unit(309) for compensating the control current being input to the motor; a voltage command compensation unit(310) for compensating the voltage command being input to the motor; a two phase-three phase coordinate inverse transformation unit(311) for transforming two-phase voltages of d and q axes into three-phase voltages; a pulse width modulation unit(312) for modulating and outputting pulse widths of three-phase voltages; an inverter(313) for controlling operation of the motor by performing on/off control operations with respect to the three-phase voltage input to the motor; and an eccentric load torque estimator(307) interposed between the limiter and the control current compensation unit, and which receives the current from among the two-phase currents transformed by the three phase-two phase coordinate transformation unit and the speed of the motor detected by the speed detection unit, estimates a torque in accordance with the eccentric load, and outputs the estimated value.
Abstract translation: 目的：提供一种速度控制装置，通过将根据偏心负载的大小和相位施加的补偿电流加到驱动电流分量上来减小速度波动。 本发明提供一种速度控制装置，其特征在于，包括：AC / DC变换器（301,302），其用于对施加于上述电动机的三相电流中的两相交流电流进行变换; 三相二相坐标变换单元（303），用于将转换后的直流电流转换为d和q轴的两相电流; 速度检测单元（304），用于检测电动机的速度; 比例积分控制器（305），用于对参考速度与检测速度之间的变化进行比例积分控制; 限制器（306），用于限制相对于输入波形的幅度; 控制电流补偿单元（309），用于补偿输入到电机的控制电流; 电压指令补偿单元（310），用于补偿输入到电机的电压指令; 两相三相坐标逆变换单元（311），用于将d和q轴的两相电压变换成三相电压; 脉冲宽度调制单元（312），用于调制和输出三相电压的脉冲宽度; 逆变器（313），用于通过对输入到电机的三相电压进行开/关控制操作来控制电机的操作; 以及插入在限制器和控制电流补偿单元之间的偏心负载转矩估计器（307），该偏置负载转矩估计器接收来自三相 - 二相坐标变换单元变换的两相电流中的电流和检测到的电动机的速度 由速度检测单元根据偏心负载估计转矩并输出估计值。
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公开(公告)号：KR1020010035552A
公开(公告)日：2001-05-07
申请号：KR1019990042181
申请日：1999-10-01
Applicant: 한국전기연구원
IPC: B60K7/00
Abstract: PURPOSE: A power wheel is an integral combination of an electromotor and a wheel, which is light-weighted and highly efficient. CONSTITUTION: A power wheel comprises an embedded type permanent-magnet synchrony-motor(3), a reducer(7) and a vehicle control part. The motor(3) is controlled by a wheel control unit and receives electricity from a battery to generate driving force. The reducer(7) decelerates the output power of the motor(3) to an appropriate level and transmits the power to a car wheel(5) connected therewith. The vehicle control part controls all the process based on order inputted by a driver. The motor(3) and the reducer(7) are integrally engaged with the wheel(5) with a single shaft sharing.
Abstract translation: 目的：电动轮是电动机和车轮的整体组合，重量轻且高效。 构成：电动轮包括嵌入式永磁同步电动机（3），减速器（7）和车辆控制部件。 马达（3）由车轮控制单元控制，并从电池接收电力以产生驱动力。 减速器（7）将马达（3）的输出功率减速到适当的水平，并将功率传递给与其连接的车轮（5）。 车辆控制部分根据驾驶员输入的命令控制所有过程。 电动机（3）和减速器（7）与车轮（5）整体接合，具有单轴共享。
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公开(公告)号：KR1020160060829A
公开(公告)日：2016-05-31
申请号：KR1020140162436
申请日：2014-11-20
Applicant: 한국전기연구원
CPC classification number: H02M1/32 , H02M2007/4835 , H02M7/23 , H01L2924/13018 , H02M1/36 , H02M7/797
Abstract: 모듈라멀티레벨컨버터, 및그 서브모듈이개시된다. 모듈라멀티레벨컨버터의서브모듈은제 1 양방향스위치, 제 2 양방향스위치, 커패시터, 제 1 단자, 제 2 단자, 및제 3 양방향스위치를포함한다. 제 1 양방향스위치, 및제 2 양방향스위치는스위칭소자및 스위칭소자와역병렬연결된다이오드를각각포함하고, 동일한방향으로직렬연결된다. 커패시터는직렬연결된제 1 양방향스위치및 제 2 양방향스위치전체에병렬연결된다. 제 1 단자는제 1 양방향스위치와제 2 양방향스위치가연결된노드에연결되고, 제 2 단자는제 2 양방향스위치에포함된다이오드양극과커패시터가연결된노드에연결된다. 제 3 양방향스위치는, 스위칭소자및 스위칭소자와역병렬연결된다이오드를포함하며, 제 2 단자에서제 1 단자로직류전류가인가되는경우인가된직류전류의경로상에서제 2 양방향스위치와반대방향으로연결된다.
Abstract translation: 公开了一种模块化多电平转换器及其子模块，以提供新的子模块结构。 模块化多电平转换器的子模块包括：第一双向开关; 第二双向开关; 电容器 第一个终端; 第二个终端 和第三个双向开关。 第一双向开关和第二双向开关中的每一个包括开关装置和与开关装置反并联连接并且以相同的方向串联连接的二极管。 电容器与串联连接的整个第一双向开关和第二双向开关并联连接。 第一端子连接到第一双向开关和第二双向开关连接到的节点，而第二端子连接到包括在第二双向开关中的二极管阳极与电容器连接的节点。 第三双向开关包括开关装置和与开关装置反并联连接的开关装置和二极管，当从第二个开关装置施加直流电流时，在施加的直流电流的路径上与第二双向开关的方向相反的方向连接 终端到第一个终端。
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公开(公告)号：KR1020150051676A
公开(公告)日：2015-05-13
申请号：KR1020130133467
申请日：2013-11-05
Applicant: 한국전기연구원
Abstract: 본발명은모둘라멀티레벨컨버터를구동하는변조방법에관한것으로서,캐리어(Carrier)를사용하지않고, 밴드(Band)와피에이치(Ph)를사용해서피에스펄스폭 변조(PS[Phase shifted] PWM) 및피디펄스폭 변조(PD[Phase Disposition] PWM) 방법을제공할수 있는것을그 특징으로한다.
Abstract translation: 本发明涉及一种驱动模块化多电平转换器的调制方法。 它是使用频带和ph，而不使用载波来提供相移脉冲宽度调制（PS PWM）和相位配置脉宽调制（PD PWM）方法。
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公开(公告)号：KR101512188B1
公开(公告)日：2015-04-22
申请号：KR1020140015446
申请日：2014-02-11
Applicant: 한국전기연구원
CPC classification number: H02M7/797 , H02J3/36 , H02M1/12 , H02M5/4585 , H02M2001/0003 , H02M2007/4835 , Y02E60/60
Abstract: 본발명은모듈형멀티레벨컨버터의구동방법에관한것으로, 모듈형멀티레벨컨버터(multi-level converter)의어느하나의밸브(valve)가지의상위밸브(upper valve)의전류기준치()가입력되는단계, 상위밸브의전류값()이측정되는단계, 상위밸브의전류기준치와측정된전류값간의오차값()이계산되는단계, 모듈형멀티레벨컨버터의직류링크전압값()이측정되는단계, 모듈형멀티레벨컨버터의계통전압값()이측정되는단계, 전류기준치, 측정전류값, 오차값, 직류링크전압값, 계통전압값을이용하여전압기준치()가계산되는단계가포함되는것을특징으로한다.
Abstract translation: 本发明涉及一种用于驱动模块化多级转换器的方法，包括以下步骤：输入模块化多电平转换器的任何一个阀分支的上阀的电流参考值; 测量上阀门的当前值; 计算上位值的当前参考值与测量电流值之间的误差值; 测量模块化多电平转换器的直流母线电压值; 测量模块化多电平转换器的系统电压值; 以及通过使用当前参考值，测量电流值，误差值，DC链路电压值和系统电压值来计算电压参考值。
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