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1. 发明授权

US09735722B2 Methods of controlling a machine using a torque command limit derived from a current limit and systems thereof 有权
公开(公告)号：US09735722B2
公开(公告)日：2017-08-15
申请号：US14183655
申请日：2014-02-19
申请人： Whitney M. Marohl , Long Wu , Anthony Weber
发明人： Whitney M. Marohl , Long Wu , Anthony Weber
IPC分类号： H02P1/46 , H02P1/50 , H02P3/18 , H02P6/00 , H02P23/00 , H02P25/00 , H02P27/00 , H02P23/14 , H02P21/22 , H02P29/66 , H02P25/022
CPC分类号： H02P23/14 , H02P21/22 , H02P23/0077 , H02P25/022 , H02P25/024 , H02P29/662 , Y02T10/7005 , Y02T10/7258
摘要： At least one example embodiment discloses a method of controlling an alternating current (ac) machine. The method includes determining or retrieving a current limit for the ac machine, determining a characterized peak current value based on a voltage-to-speed ratio of the ac machine, determining current command values for the ac machine based on at least one of the torque command limit and a torque command for the ac machine, determining current command values for the ac machine based on the torque command limit and controlling the ac machine based on the current command values.

2. 发明授权

US09270223B2 Methods of determining machine terminal voltage and systems thereof 有权
标题翻译：确定机器端子电压的方法及其系统
公开(公告)号：US09270223B2
公开(公告)日：2016-02-23
申请号：US14141631
申请日：2013-12-27
申请人： Long Wu , Anthony Weber , Lav Thyagarajan
发明人： Long Wu , Anthony Weber , Lav Thyagarajan
IPC分类号： G05B11/28 , H02P27/08 , H02P21/00 , H02P21/14
CPC分类号： H02P27/08 , H02P21/20 , H02P21/22 , H02P2207/05
摘要： At least one example embodiment discloses a control device for controlling an alternating current (ac) machine. The control device includes a processor configured to select a modulation mode from a plurality of modulation modes, determine a plurality of present phase voltages corresponding to phases of an inverter based on the selected modulation mode, the determination compensating for deadtimes associated with the selected modulation mode and phases of the inverter, the inverter configured to drive the ac machine and determine an estimated terminal voltage based on the plurality of present phase voltages.
摘要翻译：至少一个示例性实施例公开了一种用于控制交流（ac）机器的控制装置。控制装置包括：处理器，被配置为从多个调制模式中选择调制模式，基于所选择的调制模式确定与逆变器的相位对应的多个当前相电压，所述确定补偿与所选择的调制模式相关联的死机时间逆变器的相位，逆变器被配置为驱动交流电机，并且基于多个当前相电压来确定估计的端子电压。

3. 发明授权

US09442029B2 Methods of torque estimation and compensation and systems thereof 有权
标题翻译：扭矩估计和补偿方法及其系统
公开(公告)号：US09442029B2
公开(公告)日：2016-09-13
申请号：US14141709
申请日：2013-12-27
申请人： Long Wu , Yue Zhao , Anthony Weber
发明人： Long Wu , Yue Zhao , Anthony Weber
IPC分类号： G01L3/00 , G01L3/26 , G01L25/00 , B62D6/10 , G01L3/10
CPC分类号： G01L3/26 , B62D6/10 , G01L3/10 , G01L25/003 , H02P21/20
摘要： At least one example embodiment discloses a method including measuring phase currents associated with one or more stator windings of the machine, estimating terminal voltage values based on the measured phase currents representations of the machine and based on at least one of a duty cycle and a dead time ratio of the machine, transforming the terminal voltage values to derive direct and quadrature voltage representations consistent with the measured phase currents, determining a terminal power of one or more terminals of the machine, the terminal power directly based on one of the estimated terminal voltage values and direct and quadrature voltage representations of the machine and current command values and determining an estimated shaft torque of the machine based on the terminal power in accordance with at least one efficiency value based on machine parameters from a characterization of the machine.
摘要翻译：至少一个示例性实施例公开了一种方法，包括测量与机器的一个或多个定子绕组相关联的相电流，基于所测量的机器的相电流表示，基于占空比和死区中的至少一个来估计端电压值时间比，变换终端电压值以得出与所测量的相电流一致的直接和正交电压表示，基于估计的端电压之一直接确定机器的一个或多个终端的终端功率，终端功率值以及机器和电流指令值的直接和正交电压表示，并且基于来自机器的表征的机器参数，根据至少一个效率值，基于终端功率来确定机器的估计轴转矩。

4. 发明授权

US09372235B2 Methods of estimating rotor magnet temperature and systems thereof 有权
标题翻译：估算转子磁体温度的方法及其系统
公开(公告)号：US09372235B2
公开(公告)日：2016-06-21
申请号：US14501749
申请日：2014-09-30
申请人： Anthony Weber , David Holmburg , Long Wu
发明人： Anthony Weber , David Holmburg , Long Wu
IPC分类号： G05D23/00 , G01R31/34 , H02P29/02
CPC分类号： G01R31/343 , H02P21/14 , H02P29/032 , H02P29/662 , H02P29/67
摘要： At least one example embodiment discloses a method of estimating a rotor magnet temperature of a motor. The method includes determining an applied voltage during operation of the motor at an operating point, obtaining a reference value associated with the operating point and associated with a reference temperature and determining an estimated rotor magnet temperature based on the applied voltage and the reference value.
摘要翻译：至少一个示例性实施例公开了一种估计电动机的转子磁体温度的方法。该方法包括在工作点处确定电动机操作期间的施加电压，获得与工作点相关联并与参考温度相关联的参考值，并基于所施加的电压和参考值确定估计的转子磁体温度。

5. 发明授权

US09520820B2 Method and apparatus for auto-tuning an electric machine current regulator 有权
标题翻译：用于自动调谐电机电流调节器的方法和装置
公开(公告)号：US09520820B2
公开(公告)日：2016-12-13
申请号：US14581829
申请日：2014-12-23
申请人： David Holmburg , Robert Shaw , Long Wu
发明人： David Holmburg , Robert Shaw , Long Wu
IPC分类号： H02P21/00 , H02P21/14
CPC分类号： H02P21/14
摘要： In one example embodiment, a motor control unit includes a processor configured to tune a current regulator regulating a supply of electrical current to an electric motor by determining a plurality of variables, the plurality of variables including a stator resistance value, a first inductance value and a second inductance value, the stator resistance value being a resistance value of a stator of the electric motor, the first inductance value being a d-axis inductance of the electric motor and the second inductance value being a q-axis inductance of the electric motor. The processor is further configured to tune the current regulator by determining a plurality of gains based on the determined plurality of variables and generating current commands for operating the electric motor based on the determined plurality of gains.
摘要翻译：在一个示例性实施例中，电动机控制单元包括处理器，其被配置为通过确定多个变量来调节调节向电动机供电的电流调节器，所述多个变量包括定子电阻值，第一电感值和第二电感值，定子电阻值是电动机的定子的电阻值，第一电感值是电动机的d轴电感，第二电感值是电动机的q轴电感。处理器还被配置为通过基于所确定的多个变量确定多个增益来调整电流调节器，并且基于所确定的多个增益产生用于操作电动机的电流命令。

6. 发明授权

US08779705B2 Synchronization of position and current measurements in an electric motor control application using an FPGA 有权
标题翻译：使用FPGA在电机控制应用中同步位置和电流测量
公开(公告)号：US08779705B2
公开(公告)日：2014-07-15
申请号：US13280501
申请日：2011-10-25
申请人： Long Wu , Christopher J Tremel , Kent D Wanner
发明人： Long Wu , Christopher J Tremel , Kent D Wanner
IPC分类号： H02P6/00 , H02P6/08
CPC分类号： H02P21/04
摘要： A system and method for controlling an alternating current (AC) motor using a Field Programmable Gate Array (FPGA) to read the current and position measurements in an the AC motor, perform digital filtering of the position and current data, provide very precise synchronization of the measured phase current and position data, and output the data to a phase converter for control of the AC motor.
摘要翻译：一种使用现场可编程门阵列（FPGA）控制交流（AC）电动机来读取AC电动机中的电流和位置测量的系统和方法，对位置和当前数据执行数字滤波，提供非常精确的同步测量的相电流和位置数据，并将数据输出到用于控制交流电动机的相位转换器。

7. 发明申请

US20130312328A1 METHOD AND APPARATUS FOR PARTICLE RECYCLING IN MULTIPHASE CHEMICAL REACTORS 审中-公开
标题翻译：多相化学反应器颗粒循环的方法与装置
公开(公告)号：US20130312328A1
公开(公告)日：2013-11-28
申请号：US13990042
申请日：2011-11-29
申请人： Chunfa Xu , Long Wu
发明人： Chunfa Xu , Long Wu
IPC分类号： C10J3/84
CPC分类号： C10J3/84 , C10J3/482 , C10J3/523 , C10J3/721 , C10J2300/0916 , C10J2300/093 , C10J2300/0959 , C10J2300/0976 , C10J2300/1631 , C10J2300/1634
摘要： Method and apparatus for recycling fine ash particles for a multiphase chemical reactor (MCR), wherein coal is partially oxidized in the MCR to produce an exit gas stream in which fine ash particles are entrained, and wherein the MCR comprises a high temperature region with a temperature at or above a fusion temperature of the fine ash particles, wherein substantially all of the fine ash particles from the exit gas stream are returned to the high temperature region, to achieve improved carbon conversion and reduction in fly ash quantity.
摘要翻译：用于再循环用于多相化学反应器（MCR）的细灰分颗粒的方法和装置，其中煤在MCR中被部分氧化以产生其中夹带细灰粒子的出口气流，并且其中MCR包括高温区域温度等于或高于细灰分颗粒的熔化温度，其中基本上所有来自出口气流的细灰分颗粒返回到高温区域，以实现改进的碳转化和飞灰量的降低。

8. 发明申请

US20120221280A1 Method And Apparatus For Characterizing An Interior Permanent Magnet Machine 有权
标题翻译：用于表征室内永磁机的方法和装置
公开(公告)号：US20120221280A1
公开(公告)日：2012-08-30
申请号：US13036286
申请日：2011-02-28
申请人： Long Wu , Robert Shaw
发明人： Long Wu , Robert Shaw
IPC分类号： G01L25/00 , H02P6/16
CPC分类号： G01R31/343 , H02P21/22
摘要： One embodiment of the method includes setting up a testing architecture where the testing architecture includes a test IPM machine having an output shaft coupled to an output shaft of a secondary speed control machine. The method further includes controlling the secondary speed control machine to drive the output shaft of the test IPM machine at a first desired speed, determining a pair of desired direct and quadrature axis currents for each of a plurality of peak current magnitudes, and recording characterization data associated with each pair of desired direct and quadrature axis currents. The controlling, determining and recording steps for each of a second through nth desired speeds may be repeated. Control lookup tables for operation of an IPM machine may be generated from the characterization data.
摘要翻译：该方法的一个实施例包括设置测试架构，其中测试架构包括具有耦合到二次速度控制机器的输出轴的输出轴的测试IPM机器。该方法还包括控制二次速度控制机以第一期望速度驱动测试IPM机器的输出轴，为多个峰值电流幅度中的每一个确定一对期望的直接和正交轴电流，以及记录表征数据与每对期望的直接和正交轴电流相关联。可以重复第二到第n个所需速度中的每一个的控制，确定和记录步骤。可以从表征数据生成用于IPM机器的操作的控制查找表。

9. 发明申请

US20120217912A1 METHOD AND SYSTEM FOR CALIBRATING ROTOR POSITION OFFSET OF AN ELECTRIC MOTOR 有权
标题翻译：用于校准电动机的转子位置偏移的方法和系统
公开(公告)号：US20120217912A1
公开(公告)日：2012-08-30
申请号：US13169429
申请日：2011-06-27
申请人： Long Wu , Robert Shaw
发明人： Long Wu , Robert Shaw
IPC分类号： H02P6/16
CPC分类号： H02P6/20 , H02P21/16 , H02P21/32 , H02P21/34
摘要： While enforcing a fake position in the data processing system and applying a zero direct-axis current command, positive and negative quadrature-axis current commands are applied sequentially and at approximately same magnitude to urge the rotor toward an enforced position. A processing module measures a positive quadrature-axis current aligned raw position data after application of the positive quadrature-axis current command and measures negative quadrature-axis current aligned raw position data for the rotor after application of the negative quadrature-axis command. An initial position offset calibrator or data processor determines a difference between the raw position data to determine an alignment of a true averaging axis. An initial position offset calibrator or data processor determines a raw averaging axis position data based on an average of the raw position data. An initial position offset calibrator or data processor determines a position offset based on a difference between the determined true averaging axis and the determined raw averaging axis position data.
摘要翻译：当在数据处理系统中执行伪造位置并应用零直轴电流指令时，顺时针和大致相同的幅度施加正和负的正交轴电流指令，以将转子推向强制位置。在施加正正交轴电流指令之后，处理模块测量正正交轴电流对准原始位置数据，并在施加负正交轴命令之后测量转子的负正交轴电流对准原始位置数据。初始位置偏移校准器或数据处理器确定原始位置数据之间的差异以确定真实平均轴的对准。初始位置偏移校准器或数据处理器基于原始位置数据的平均值来确定原始平均轴位置数据。初始位置偏移校准器或数据处理器基于所确定的真实平均轴与所确定的原始平均轴位置数据之间的差异来确定位置偏移。

10. 发明申请

US20120212167A1 METHOD AND SYSTEM FOR CONTROLLING AN ELECTRIC MOTOR WITH VARIABLE SWITCHING FREQUENCY AT VARIABLE OPERATING SPEEDS 有权
标题翻译：用可变操作速度控制可变开关频率的电动马达的方法和系统
公开(公告)号：US20120212167A1
公开(公告)日：2012-08-23
申请号：US13170216
申请日：2011-06-28
申请人： Long Wu , Robert Shaw
发明人： Long Wu , Robert Shaw
IPC分类号： H02P6/14
CPC分类号： H02P6/14
摘要： A data processor establishes a first range of rotational speeds of a rotor of the motor from a first lower limit to a first higher limit and a second range of rotational speeds from a second lower limit to a second higher limit. A hysteresis band or a rotational range of speeds is established such that during operation in the first range the first higher limit is adjusted (e.g., raised by a first amount to be greater than the second lower limit). A sensor detects or measures a rotational speed of a rotor of the motor. The data processor determines whether the measured rotational speed falls within the first range or the second range, as adjusted by the hysteresis band, to identify a selected speed range. A switching frequency of a pulse-width modulation signal is varied in accordance with the selected speed range.
摘要翻译：数据处理器将电动机的转子的第一范围的转速从第一下限到第一上限，以及从第二下限到第二上限的第二转速范围。建立滞后带或速度的旋转范围，使得在第一范围内的操作期间，调整第一上限（例如，将第一量提高到大于第二下限）。传感器检测或测量电动机的转子的转速。数据处理器确定所测量的转速是否落在由滞后带调整的第一范围或第二范围内，以识别选定的速度范围。脉冲宽度调制信号的切换频率根据所选择的速度范围而变化。

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