公开(公告)号：US20100308757A1

公开(公告)日：2010-12-09

申请号：US12778991

申请日：2010-05-12

申请人： Kozo IDE ,  Shinya Morimoto ,  Sungmin Kim ,  Seung-ki Sul

发明人： Kozo IDE ,  Shinya Morimoto ,  Sungmin Kim ,  Seung-ki Sul

IPC分类号： H02P21/00

CPC分类号： H02P21/06 ,  Y02P80/116

摘要： An alternating-current motor control apparatus includes an inverter unit, a current-command divider, a current controller, a torque-variation calculator, and a phase angle generator. The inverter unit is configured to output a command voltage to an alternating-current motor. The current-command divider is configured to divide a command current amplitude into command current components based on a phase-angle command value that is a sum of the phase angle and an alternating current signal. The current controller is configured to control current to match a motor current flowing through the motor with the command current components. The torque-variation calculator is configured to calculate a motor electric power based on the command voltage and either the motor current or the command current components and to calculate a torque variation based on the motor electric power. The phase angle generator is configured to generate a phase angle based on the torque variation.

摘要翻译： 交流电动机控制装置包括逆变器单元，电流指令分配器，电流控制器，转矩变化计算器和相位角发生器。 逆变器单元被配置为向交流电动机输出指令电压。 电流指令分频器被配置为基于作为相位角和交流信号之和的相位角指令值将指令电流幅度除以指令电流分量。 电流控制器被配置为控制电流以使流过电动机的电动机电流与指令电流分量相匹配。 扭矩变化计算器被配置为基于指令电压和电动机电流或指令电流分量来计算电动机功率，并且基于电动机功率来计算转矩变化。 相位角发生器被配置为基于转矩变化产生相位角。

公开(公告)号：US08450955B2

公开(公告)日：2013-05-28

申请号：US12778991

申请日：2010-05-12

申请人： Kozo Ide ,  Shinya Morimoto ,  Sungmin Kim ,  Seung-ki Sul

发明人： Kozo Ide ,  Shinya Morimoto ,  Sungmin Kim ,  Seung-ki Sul

IPC分类号： H02P21/00

CPC分类号： H02P21/06 ,  Y02P80/116

摘要： An alternating-current motor control apparatus includes an inverter unit, a current-command divider, a current controller, a torque-variation calculator, and a phase angle generator. The current-command divider is configured to divide a command current amplitude into command current components based on a phase-angle command value that is a sum of the phase angle and an alternating current signal. The torque-variation calculator is configured to calculate a motor electric power based on the command voltage and either the motor current or the command current components and to calculate a torque variation based on the motor electric power. The phase angle generator is configured to generate a phase angle based on the torque variation.

摘要翻译： 交流电动机控制装置包括逆变器单元，电流指令分配器，电流控制器，转矩变化计算器和相位角发生器。 电流指令分频器被配置为基于作为相位角和交流信号之和的相位角指令值将指令电流幅度除以指令电流分量。 扭矩变化计算器被配置为基于指令电压和电动机电流或指令电流分量来计算电动机功率，并且基于电动机功率来计算转矩变化。 相位角发生器被配置为基于转矩变化产生相位角。

公开(公告)号：US08330402B2

公开(公告)日：2012-12-11

申请号：US12690904

申请日：2010-01-20

申请人： Kozo Ide ,  Shinya Morimoto ,  Masanobu Inazumi ,  Young Doo Yoon ,  Seung-ki Sul

发明人： Kozo Ide ,  Shinya Morimoto ,  Masanobu Inazumi ,  Young Doo Yoon ,  Seung-ki Sul

IPC分类号： H02P21/00

CPC分类号： H02P21/32 ,  H02P21/18 ,  H02P2203/11

摘要： An alternating-current motor control apparatus includes a voltage controller configured to output a command voltage vector so that the command voltage vector is time-averaged for time periods, a square-wave voltage generator configured to control, every time period, amplitudes and phases of voltages to be applied to an alternating-current motor, a current detector configured to detect motor currents at a timing synchronized with periods 1/N-th of the time periods, where N is equal to or larger than one, a coordinate transformation section configured to perform coordinate transformation to transform the motor currents into two-phase currents, an envelope extractor configured to extract two-phase currents as waveforms having amplitudes that periodically change from the two-phase currents, and extract envelopes of the waveforms, and a magnetic-pole-position computing section configured to compute a magnetic-pole position using the envelopes.

摘要翻译： 交流电动机控制装置包括：电压控制器，其被配置为输出指令电压矢量，使得指令电压矢量对于时间段进行时间平均;方波电压发生器，被配置为控制每个时间段的幅度和相位 施加到交流电动机的电压;电流检测器，被配置为在与N等于或大于1的时间段的时间段1 / N之间同步的定时检测电动机电流;坐标变换部分配置 执行坐标变换以将电动机电流转换为两相电流;包络提取器，被配置为将两相电流提取为具有从两相电流周期性变化的幅度的波形，并提取波形的包络线; 磁极位置计算部件，被配置为使用所述包络来计算磁极位置。

公开(公告)号：US07358622B2

公开(公告)日：2008-04-15

申请号：US11820186

申请日：2007-06-18

申请人： Hyun-sup Yang ,  Seung-ki Sul

发明人： Hyun-sup Yang ,  Seung-ki Sul

IPC分类号： F02N11/00

CPC分类号： H02P9/04 ,  F01D15/10 ,  F02C1/04 ,  F02C6/10 ,  H01M2250/405 ,  H01M2250/407 ,  H02P9/006 ,  Y02B90/16 ,  Y02E60/563

摘要： Provided is a distributed-power-generation system capable of maintaining an operation point and a method of controlling the same. The distributed-power-generation system comprises: a fuel cell producing current and high-temperature gas through an electric chemical reaction of hydrogen and oxygen; a turbine obtaining rotation power using heat produced by the fuel cell; a compressor supplying air to the fuel cell using the rotation power of the turbine; a motor/generator unit acting as a motor using a current supplied from a battery in a starting mode, and as a generator rotating by rotation power of a turbine and generating a current in a generating mode; and an inverter unit supplying a DC power produced by the fuel cell and an AC power produced by the motor/generator unit for a three-phase power system. The method of controlling the distributed-power-generation system comprises: sensing a rotation speed of a rotation axis of the motor/generator unit; comparing the sensed rotation speed and a predefined reference speed; and supplying a current to the motor/generator unit to produce a load in the opposite direction of rotation of the rotation axis or in the same direction.

摘要翻译： 提供一种能够维持操作点的分布式发电系统及其控制方法。 分布式发电系统包括：通过氢和氧的电化学反应产生电流和高温气体的燃料电池; 涡轮机利用燃料电池产生的热量获得旋转动力; 使用所述涡轮机的旋转动力向所述燃料电池供给空气的压缩机; 电动机/发电机单元，其以起动模式使用从电池提供的电流作为电动机，以及作为通过涡轮机的旋转动力旋转的发电机，并以生成模式生成电流; 以及逆变器单元，其提供由燃料电池产生的直流电力和由用于三相电力系统的电动机/发电机单元产生的交流电力。 控制分布式发电系统的方法包括：感测电动机/发电机组的旋转轴的旋转速度; 比较感测的转速和预定的参考速度; 并向马达/发电机组提供电流，以产生与旋转轴线相反的旋转方向或相同方向的负载。

公开(公告)号：US06639380B2

公开(公告)日：2003-10-28

申请号：US10115358

申请日：2002-04-03

申请人： Seung-ki Sul ,  Jung-ik Ha

发明人： Seung-ki Sul ,  Jung-ik Ha

IPC分类号： H02P124

CPC分类号： H02P21/18 ,  H02P21/24

摘要： A field orientation control method for an AC motor, which includes assuming an arbitrary axis as an estimated control axis in the synchronously rotating reference frame; injecting a high-frequency fluctuating signal to the estimated control axis; determining the position of a control axis using current, voltage or impedance on the estimated control axis in the synchronously rotating reference frame, generated by the injected high-frequency signal; and determining the position and speed of the rotor based on the control axis thus located. Since this method uses the variation of impedance caused by the induction machine's generation of field and by various shapes, the control performance is more stable than other conventional control methods. This AC motor's control method may be applied to control of torque, speed and position at a low speed where it is difficult to affix a detector and where a highly efficient operation is required.

摘要翻译： 一种用于交流电动机的场方向控制方法，其包括将任意轴作为同步旋转参考系中的估计控制轴; 向估计的控制轴注入高频波动信号; 使用由注入的高频信号产生的同步旋转参考系中的估计控制轴上的电流，电压或阻抗来确定控制轴的位置; 并且基于如此定位的控制轴确定转子的位置和速度。 由于这种方法使用感应电机产生的阻抗变化和各种形状，所以控制性能比其他传统控制方法更稳定。 该交流电动机的控制方法可以应用于在难以固定检测器的低速度下控制转矩，速度和位置以及需要高效率的操作。

公开(公告)号：US07250690B2

公开(公告)日：2007-07-31

申请号：US11185183

申请日：2005-07-20

申请人： Hyun-sup Yang ,  Seung-ki Sul

发明人： Hyun-sup Yang ,  Seung-ki Sul

IPC分类号： F01D15/10 ,  F02C6/00 ,  H02K7/18 ,  F02D29/06 ,  H02P9/04

CPC分类号： H02P9/04 ,  F01D15/10 ,  F02C1/04 ,  F02C6/10 ,  H01M2250/405 ,  H01M2250/407 ,  H02P9/006 ,  Y02B90/16 ,  Y02E60/563

摘要： Provided is a distributed-power-generation system capable of maintaining an operation point and a method of controlling the same. The distributed-power-generation system comprises: a fuel cell producing current and high-temperature gas through an electric chemical reaction of hydrogen and oxygen; a turbine obtaining rotation power using heat produced by the fuel cell; a compressor supplying air to the fuel cell using the rotation power of the turbine; a motor/generator unit acting as a motor using a current supplied from a battery in a starting mode, and as a generator rotating by rotation power of a turbine and generating a current in a generating mode; and an inverter unit supplying a DC power produced by the fuel cell and an AC power produced by the motor/generator unit for a three-phase power system. The method of controlling the distributed-power-generation system comprises: sensing a rotation speed of a rotation axis of the motor/generator unit; comparing the sensed rotation speed and a predefined reference speed; and supplying a current to the motor/generator unit to produce a load in the opposite direction of rotation of the rotation axis or in the same direction.

公开(公告)号：US20060071477A1

公开(公告)日：2006-04-06

申请号：US11185183

申请日：2005-07-20

申请人： Hyun-sup Yang ,  Seung-ki Sul

发明人： Hyun-sup Yang ,  Seung-ki Sul

IPC分类号： F01D15/10 ,  H02K7/18 ,  H02P9/04 ,  F02C6/00

CPC分类号： H02P9/04 ,  F01D15/10 ,  F02C1/04 ,  F02C6/10 ,  H01M2250/405 ,  H01M2250/407 ,  H02P9/006 ,  Y02B90/16 ,  Y02E60/563

摘要： Provided is a distributed-power-generation system capable of maintaining an operation point and a method of controlling the same. The distributed-power-generation system comprises: a fuel cell producing current and high-temperature gas through an electric chemical reaction of hydrogen and oxygen; a turbine obtaining rotation power using heat produced by the fuel cell; a compressor supplying air to the fuel cell using the rotation power of the turbine; a motor/generator unit acting as a motor using a current supplied from a battery in a starting mode, and as a generator rotating by rotation power of a turbine and generating a current in a generating mode; and an inverter unit supplying a DC power produced by the fuel cell and an AC power produced by the motor/generator unit for a three-phase power system. The method of controlling the distributed-power-generation system comprises: sensing a rotation speed of a rotation axis of the motor/generator unit; comparing the sensed rotation speed and a predefined reference speed; and supplying a current to the motor/generator unit to produce a load in the opposite direction of rotation of the rotation axis or in the same direction.

摘要翻译： 提供一种能够维持操作点的分布式发电系统及其控制方法。 分布式发电系统包括：通过氢和氧的电化学反应产生电流和高温气体的燃料电池; 涡轮机利用燃料电池产生的热量获得旋转动力; 使用所述涡轮机的旋转动力向所述燃料电池供给空气的压缩机; 电动机/发电机单元，其以起动模式使用从电池提供的电流作为电动机，以及作为通过涡轮机的旋转动力旋转的发电机，并以生成模式生成电流; 以及逆变器单元，其提供由燃料电池产生的直流电力和由用于三相电力系统的电动机/发电机单元产生的交流电力。 控制分布式发电系统的方法包括：感测电动机/发电机组的旋转轴的旋转速度; 比较感测的转速和预定的参考速度; 并向马达/发电机组提供电流，以产生与旋转轴线相反的旋转方向或相同方向的负载。

公开(公告)号：US20070241722A1

公开(公告)日：2007-10-18

申请号：US11820186

申请日：2007-06-18

申请人： Hyun-sup Yang ,  Seung-ki Sul

发明人： Hyun-sup Yang ,  Seung-ki Sul

IPC分类号： H02P11/04

CPC分类号： H02P9/04 ,  F01D15/10 ,  F02C1/04 ,  F02C6/10 ,  H01M2250/405 ,  H01M2250/407 ,  H02P9/006 ,  Y02B90/16 ,  Y02E60/563

摘要： Provided is a distributed-power-generation system capable of maintaining an operation point and a method of controlling the same. The distributed-power-generation system comprises: a fuel cell producing current and high-temperature gas through an electric chemical reaction of hydrogen and oxygen; a turbine obtaining rotation power using heat produced by the fuel cell; a compressor supplying air to the fuel cell using the rotation power of the turbine; a motor/generator unit acting as a motor using a current supplied from a battery in a starting mode, and as a generator rotating by rotation power of a turbine and generating a current in a generating mode; and an inverter unit supplying a DC power produced by the fuel cell and an AC power produced by the motor/generator unit for a three-phase power system. The method of controlling the distributed-power-generation system comprises: sensing a rotation speed of a rotation axis of the motor/generator unit; comparing the sensed rotation speed and a predefined reference speed; and supplying a current to the motor/generator unit to produce a load in the opposite direction of rotation of the rotation axis or in the same direction.

摘要翻译： 提供一种能够维持操作点的分布式发电系统及其控制方法。 分布式发电系统包括：通过氢和氧的电化学反应产生电流和高温气体的燃料电池; 涡轮机利用燃料电池产生的热量获得旋转动力; 使用所述涡轮机的旋转动力向所述燃料电池供给空气的压缩机; 电动机/发电机单元，其以起动模式使用从电池提供的电流作为电动机，以及作为通过涡轮机的旋转动力旋转的发电机，并以生成模式生成电流; 以及逆变器单元，其提供由燃料电池产生的直流电力和由用于三相电力系统的电动机/发电机单元产生的交流电力。 控制分布式发电系统的方法包括：感测电动机/发电机组的旋转轴的旋转速度; 比较感测的转速和预定的参考速度; 并向马达/发电机组提供电流，以产生与旋转轴线相反的旋转方向或相同方向的负载。

公开(公告)号：US5886498A

公开(公告)日：1999-03-23

申请号：US921658

申请日：1997-08-28

申请人： Seung-ki Sul ,  Jung-ik Ha

发明人： Seung-ki Sul ,  Jung-ik Ha

IPC分类号： H02P21/00 ,  H02P21/14 ,  H02P1/34

CPC分类号： H02P21/141

摘要： The present invention is related to the method to find the rotor flux angle from stator voltages and currents by injecting high frequency signal. The injected signal is not rotating one but fluctuating one at a reference frame rotating synchronously to the fundamental stator frequency. The difference of impedances between the flux axis and the quadrature axis at high frequency signal injected on the rotor flux angle is explained by the equivalent circuit equation of the induction machine. The difference is verified by experiments on the test motors at various conditions. The sensorless field orientation control method is proposed and experimental results clarify the satisfactory operation of the method with 150% load torque at zero stator frequency.

摘要翻译： 本发明涉及通过注入高频信号从定子电压和电流中找到转子磁通角的方法。 注入信号不是旋转一个，而是在与基本定子频率同步旋转的参考系上波动。 通过感应电机的等效电路方程来解释注入到转子磁通角上的高频信号处的磁通轴和正交轴之间的阻抗差。 通过在各种条件下对试验电机的实验来验证差异。 提出了无传感器场方向控制方法，实验结果明确了零定子频率下150％负载转矩方法的令人满意的运行。