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Patent Agency Ranking
公开(公告)号：KR1020140090471A
公开(公告)日：2014-07-17
申请号：KR1020130002567
申请日：2013-01-09
Applicant: 엘지전자 주식회사 , 서울대학교산학협력단
CPC classification number: H02P21/14 , H02P6/04 , H02P6/06 , H02P6/16 , H02P21/18 , H02P29/0241 , H02P2203/03
Abstract: The present invention relates to an apparatus for driving a motor. The apparatus for driving a motor according to an embodiment of the present invention includes: a rectifier to rectify an input alternating current voltage; an inverter to convert the rectified voltage to drive the motor; a capacitor provided between the rectifier and the inverter; and a controller to control an operation of a switching element in the inverter. When an output voltage command value vector for driving the motor exceeds an output voltage limit boundary range in which the inverter may output, the controller calculates a final output voltage command value vector to allow a vector of an output current flowing through the motor to be equal to output power of the inverter based on the output voltage command value vector. Accordingly, excessive modulation control may be performed in a capacitorless scheme.
Abstract translation: 本发明涉及一种用于驱动电动机的装置。 根据本发明实施例的用于驱动电动机的装置包括：整流器，用于整流输入交流电压; 转换整流电压驱动电机的逆变器; 整流器与逆变器之间设置电容器; 以及用于控制逆变器中的开关元件的操作的控制器。 当用于驱动电动机的输出电压指令值向量超过变频器可输出的输出电压限制边界范围时，控制器计算最终输出电压指令值向量，以允许流过电动机的输出电流的矢量相等 根据输出电压指令值向量输出逆变器的功率。 因此，可以在无电容器方案中执行过度的调制控制。
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公开(公告)号：KR1020140090470A
公开(公告)日：2014-07-17
申请号：KR1020130002566
申请日：2013-01-09
Applicant: 엘지전자 주식회사 , 서울대학교산학협력단
Abstract: The present invention relates to an apparatus to drive a motor. According to an embodiment of the present invention, the apparatus to drive the motor comprises: a rectifier to rectify an input AC voltage; an inverter to drive the motor by converting the rectified voltage; and a control unit to control a capacitor disposed between the rectifier and the inverter and controlling the operation of a switching element in the inverter, wherein the control unit generates a compensation voltage command value on the basis of an inverter output power command value related to the output power of the inverter, and outputs a switching control signal to drive the inverter based on a compensating voltage command value. Therefore, the present invention can perform a control of an input current of the inverter with a capacitor-less method.
Abstract translation: 本发明涉及驱动马达的装置。 根据本发明的实施例，驱动马达的装置包括：整流器，对输入的交流电压进行整流; 通过转换整流电压来驱动电动机的逆变器; 以及控制单元，用于控制设置在整流器和逆变器之间的电容器，并控制逆变器中的开关元件的操作，其中控制单元根据与该逆变器相关的逆变器输出功率指令值，生成补偿电压指令值 输出功率，输出开关控制信号，根据补偿电压指令值驱动逆变器。 因此，本发明可以利用无电容器方法来控制逆变器的输入电流。
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公开(公告)号：KR101395514B1
公开(公告)日：2014-05-14
申请号：KR1020120134424
申请日：2012-11-26
Applicant: 서울대학교산학협력단
Abstract: According to one embodiment of the present concept, a grid-connected type solar inverter includes a first photoelectric cell (PV) array; a first invertor which is connected to the first PV array in parallel; a second PV array; and a second invertor which is connected in parallel to the second PV array. One end of grid power is connected to the first invertor and the other end is connected to the second inverter. The minus terminal of each dc bus of the first PV array and the second PV array is connected to each other or each neutral point is connected to each other.
Abstract translation: 根据本概念的一个实施例，并网型太阳能逆变器包括第一光电池（PV）阵列; 第一反相器并联连接到第一PV阵列; 第二个光伏阵列 以及与第二PV阵列并联连接的第二反相器。 电网电源的一端连接到第一反相器，另一端连接到第二反相器。 第一PV阵列和第二PV阵列的每个直流总线的负端子彼此连接或者每个中性点彼此连接。
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