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：US20130057195A1

公开(公告)日：2013-03-07

申请号：US13597663

申请日：2012-08-29

申请人： Jung Ik HA ,  Sung Min KIM ,  Seung Ki SUL ,  Yong Su HAN

发明人： Jung Ik HA ,  Sung Min KIM ,  Seung Ki SUL ,  Yong Su HAN

IPC分类号： H02K11/00 ,  H02P23/00

CPC分类号： H02P25/26 ,  H02P27/05

摘要： A single external power supply variable speed induction motor and a control method thereof are disclosed. An induction motor includes: a stator in which coils directly connected to a single-phase or 3-phase or more systematic power supply are wound; a rotor that is supported to be rotatable in the stator; a power conversion device that is attached to the rotor and controls a rotor current without connection of a separate external power supply; and a control circuit that is connected to the power conversion device and controls the power conversion device.

摘要翻译： 公开了一种外部电源变速感应电动机及其控制方法。 感应电动机包括：缠绕直接连接到单相或三相或更系统的电源的线圈的定子; 支承在所述定子中可旋转的转子; 功率转换装置，其连接到转子并控制转子电流，而不连接单独的外部电源; 以及连接到电力转换装置并控制电力转换装置的控制电路。

公开(公告)号：US20100207555A1

公开(公告)日：2010-08-19

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： H02P21/14

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：US20090230900A1

公开(公告)日：2009-09-17

申请号：US12048071

申请日：2008-03-13

申请人： BONHO BAE ,  NITINKUMAR R. PATEL ,  STEVEN E. SCHULZ ,  JAMES M. NAGASHIMA ,  JUNG SIK YIM ,  SEUNG KI SUL

发明人： BONHO BAE ,  NITINKUMAR R. PATEL ,  STEVEN E. SCHULZ ,  JAMES M. NAGASHIMA ,  JUNG SIK YIM ,  SEUNG KI SUL

IPC分类号： H02P21/14

CPC分类号： H02P21/22

摘要： Methods and systems are provided for controlling an AC motor via an inverter. The method includes determining a delay-compensated offset based on a synchronous frame current, producing a current error based on a synchronous frame current and a commanded current, producing a voltage error based on an anti-windup offset and the current error, producing a commanded voltage based on the delay-compensated offset and the voltage error, and providing the inverter with the commanded voltage.

摘要翻译： 提供了用于通过逆变器控制AC电动机的方法和系统。 该方法包括基于同步帧电流确定延迟补偿的偏移，基于同步帧电流和指令电流产生电流误差，产生基于抗融场偏移和当前误差的电压误差，产生命令 基于延迟补偿偏移和电压误差的电压，并向逆变器提供指令电压。

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：US06185115B2

公开(公告)日：2001-02-06

申请号：US09354715

申请日：1999-07-16

申请人： Seung Ki Sul ,  Hyeoun Dong Lee

发明人： Seung Ki Sul ,  Hyeoun Dong Lee

IPC分类号： H02M545

CPC分类号： H02M5/4585 ,  H02M2001/123

摘要： A three-phase pulse width modulation method in a motor control system which drives a three-phase AC motor that determines a current switching pattern of a converter and then moves switching points of three phases of an inverter so that a switching point of a phase among the three-phases of the converter accords with a switching point of a phase among the three-phases of the inverter in accordance with the determined switching pattern, thereby reducing a voltage generated between the three-phase Ac motor and a ground, that is the size of the pulse number of a common-mode voltage.

摘要翻译： 一种电动机控制系统中的三相脉宽调制方法，其驱动三相交流电动机，所述三相交流电动机确定变换器的电流开关模式，然后移动逆变器的三相的开关点， 转换器的三相根据所确定的开关模式与逆变器的三相中的相位的切换点一致，从而减小三相AC电动机和地之间产生的电压，即 共模电压脉冲数的大小。

公开(公告)号：US09112445B2

公开(公告)日：2015-08-18

申请号：US14112524

申请日：2011-04-18

申请人： Seung-Ki Sul ,  Jung-Ik Ha ,  Eunsoo Jung

发明人： Seung-Ki Sul ,  Jung-Ik Ha ,  Eunsoo Jung

IPC分类号： H02P1/46 ,  H02P25/02 ,  B60L11/18 ,  H02P27/14 ,  H02K11/00

CPC分类号： H02P25/026 ,  B60L11/1803 ,  B60L15/007 ,  B60L15/20 ,  B60L2220/14 ,  B60L2220/16 ,  B60L2220/50 ,  B60L2240/421 ,  B60L2240/427 ,  B60L2240/527 ,  B60L2260/44 ,  H02K11/33 ,  H02P25/024 ,  H02P25/03 ,  H02P27/14 ,  Y02T10/641 ,  Y02T10/642 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/72 ,  Y02T10/7275

摘要： A winding synchronous machine having a moving object including an inverter circuit comprises: a moving-object inverter circuit connected to the moving object of the winding synchronous machine; and a moving-object circuit control device connected to the moving-object inverter circuit so as to control the moving-object inverter circuit. The moving-object circuit control device may comprise: a stator inverter voltage estimator estimating a high-frequency voltage of a stator inverter circuit; a field current reference generator generating a field current reference of the moving object; and an energy storage device voltage controller generating a current reference tracking a DC-link energy storage device voltage of the moving object. Problems associated with using a rare-earth permanent magnet can be thereby overcome, and a winding synchronous machine including an excitation circuit in which ripples almost never occur can be implemented without using an extra power source.

摘要翻译： 一种具有包括逆变器电路的运动物体的绕组同步电机包括：连接到绕组同步机的运动物体的运动物体逆变器电路; 以及连接到移动物体反相器电路以便控制移动物体反相器电路的移动物体电路控制装置。 运动对象电路控制装置可以包括：定子逆变器电压估计器，估计定子逆变器电路的高频电压; 产生移动物体的场电流基准的励磁电流基准发生器; 以及能量存储装置电压控制器，其产生跟踪所述移动物体的直流链节能量存储装置电压的电流基准。 因此可以克服与使用稀土永磁体有关的问题，并且可以在不使用额外的电源的情况下实现包括几乎不会发生波纹的激励电路的绕组同步电机。

公开(公告)号：US08786230B2

公开(公告)日：2014-07-22

申请号：US13137309

申请日：2011-08-04

申请人： Dong Hwan Lee ,  Young Jae Park ,  Yong Soon Park ,  Seung Ki Sul

发明人： Dong Hwan Lee ,  Young Jae Park ,  Yong Soon Park ,  Seung Ki Sul

IPC分类号： H02P6/18

CPC分类号： H02P6/18

摘要： A method of estimating inductance of a permanent magnet synchronous motor (PMSM) includes injecting a signal having a frequency differing from an operating frequency of the PMSM into the PMSM during sensorless operation, sensing magnitudes of current responses to the injected signal, and estimating an inductance value at which the magnitude of the sensed current response is minimal to be an actual inductance value of the PMSM, thereby estimating inductance used in the PMSM regardless of position estimation error of the PMSM and thus more accurately and reliably estimating inductance of the PMSM.

摘要翻译： 估计永磁同步电动机（PMSM）的电感的方法包括在无传感器运行期间将具有与PMSM的工作频率不同的频率的信号注入到PMSM中，感测对所注入的信号的电流响应的大小，以及估计电感 检测到的电流响应的大小最小的值是PMSM的实际电感值，从而估计在PMSM中使用的电感，而不管PMSM的位置估计误差如何，并且因此更准确和可靠地估计PMSM的电感。

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：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。