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1. 发明授权

US08742767B2 Parameter estimation system and method for an induction motor 有权
标题翻译：感应电动机的参数估计系统和方法
公开(公告)号：US08742767B2
公开(公告)日：2014-06-03
申请号：US12611719
申请日：2009-11-03
申请人： David M. Messersmith , Douglas J. Bader , Haihui Lu , Thomas A. Nondahl , Zhenhuan Yuan
发明人： David M. Messersmith , Douglas J. Bader , Haihui Lu , Thomas A. Nondahl , Zhenhuan Yuan
IPC分类号： G01R31/06
CPC分类号： G01R31/343 , G01R27/08 , G01R27/2611 , H02P23/14
摘要： A method of estimating stator resistance of an induction motor includes applying voltage pulses through two phase paths of the motor for a plurality of electrical cycles to inject current in the motor, wherein the voltage pulses are applied until rotor flux of the motor is substantially stabilized and measuring stator voltage and stator current in response to the applied voltage pulses for each of the plurality of electrical cycles. The method also includes calculating the stator resistance based upon the measured stator voltages and the stator currents.
摘要翻译：一种估计感应电动机的定子电阻的方法包括：通过电动机的两个相位路径将电压脉冲施加多个电循环以在电动机中注入电流，其中施加电压脉冲，直到电机的转子磁通量基本稳定，响应于所述多个电循环中的每一个的所施加的电压脉冲来测量定子电压和定子电流。该方法还包括基于所测量的定子电压和定子电流来计算定子电阻。

2. 发明申请

US20110102012A1 PARAMETER ESTIMATION SYSTEM AND METHOD FOR AN INDUCTION MOTOR 有权
标题翻译：用于感应电动机的参数估计系统和方法
公开(公告)号：US20110102012A1
公开(公告)日：2011-05-05
申请号：US12611719
申请日：2009-11-03
申请人： David M. Messersmith , Douglas J. Bader , Haihui Lu , Thomas A. Nondahl , Zhenhuan Yuan
发明人： David M. Messersmith , Douglas J. Bader , Haihui Lu , Thomas A. Nondahl , Zhenhuan Yuan
IPC分类号： G01R31/34 , G01R27/00
CPC分类号： G01R31/343 , G01R27/08 , G01R27/2611 , H02P23/14
摘要： A method of estimating stator resistance of an induction motor is provided. The method includes applying voltage pulses through two phase paths of the motor for a plurality of electrical cycles to inject current in the motor, wherein the voltage pulses are applied until rotor flux of the motor is substantially stabilized and measuring stator voltage and stator current in response to the applied voltage pulses for each of the plurality of electrical cycles. The method also includes calculating the stator resistance based upon the measured stator voltages and the stator currents.
摘要翻译：提供了一种估计感应电动机的定子电阻的方法。该方法包括通过电动机的两个相位路径施加电压脉冲多个电循环以在电动机中注入电流，其中施加电压脉冲直到电动机的转子磁通基本稳定并且响应于测量定子电压和定子电流对于多个电循环中的每一个的施加的电压脉冲。该方法还包括基于所测量的定子电压和定子电流来计算定子电阻。

3. 发明授权

US08547050B2 Control method and system with feedback indicative of load flux 有权
公开(公告)号：US08547050B2
公开(公告)日：2013-10-01
申请号：US13473985
申请日：2012-05-17
申请人： Haihui Lu , David M. Messersmith , Thomas A. Nondahl
发明人： Haihui Lu , David M. Messersmith , Thomas A. Nondahl
IPC分类号： G01P3/00 , H02P1/28
CPC分类号： H02P23/0004
摘要： Systems, methods, and devices are disclosed, including an induction-motor controller having a phase path; a solid-state switch interposed on the phase path; and a controller coupled to the solid-state switch. In certain embodiments, the controller is configured to switch the solid-state switch so that the solid-state switch is conductive during a conduction angle of a cycle of an incoming AC power waveform conveyed by the phase path, calculate the conduction angle based on a generally sinusoidal reference value that has a frequency lower than a frequency of the incoming AC power waveform, and adjust the generally sinusoidal reference value based on a value indicative of flux in a load coupled to the phase path.

4. 发明申请

US20090058341A1 Control method and system with feedback indicative of load flux 有权
标题翻译：控制方法和系统，反馈指示负载通量
公开(公告)号：US20090058341A1
公开(公告)日：2009-03-05
申请号：US11897871
申请日：2007-08-31
申请人： Haihui Lu , David M. Messersmith , Thomas A. Nondahl
发明人： Haihui Lu , David M. Messersmith , Thomas A. Nondahl
IPC分类号： H02P23/00
CPC分类号： H02P23/0004
摘要： Systems, methods, and devices are disclosed, including an induction-motor controller having a phase path; a solid-state switch interposed on the phase path; and a controller coupled to the solid-state switch. In certain embodiments, the controller is configured to switch the solid-state switch so that the solid-state switch is conductive during a conduction angle of a cycle of an incoming AC power waveform conveyed by the phase path, calculate the conduction angle based on a generally sinusoidal reference value that has a frequency lower than a frequency of the incoming AC power waveform, and adjust the generally sinusoidal reference value based on a value indicative of flux in a load coupled to the phase path.
摘要翻译：公开了包括具有相位路径的感应电动机控制器的系统，方法和装置; 插在相位路径上的固态开关; 以及耦合到固态开关的控制器。在某些实施例中，控制器被配置为切换固态开关，使得固态开关在由相位路径传送的输入AC功率波形的周期的导通角期间导通，基于具有低于输入AC功率波形的频率的频率的大致正弦参考值，并且基于表示耦合到相位路径的负载中的通量的值来调整大致正弦参考值。

5. 发明申请

US20070247099A1 SYSTEM AND METHOD FOR TRANSIENT-BASED MOTOR SPEED ESTIMATION WITH TRANSIENT EXCITATION 有权
标题翻译：基于瞬态电动机速度估计与瞬态激励的系统与方法
公开(公告)号：US20070247099A1
公开(公告)日：2007-10-25
申请号：US11741728
申请日：2007-04-28
申请人： Haihui Lu , Thomas A. Nondahl , David M. Messersmith
发明人： Haihui Lu , Thomas A. Nondahl , David M. Messersmith
IPC分类号： G05B11/01 , G01P3/00
CPC分类号： H02P6/185 , H02P6/182 , H02P23/20
摘要： Control systems and speed estimation systems are presented having a transient-based speed estimation system that provides a rotor speed estimate based on a measured speed-related motor transient signal, and a transient excitation system which selectively modifies at least one switch control signal to excite the measured motor transient.
摘要翻译：提出了具有基于瞬态的速度估计系统的控制系统和速度估计系统，其基于所测量的与速度相关的电机瞬态信号提供转子速度估计，以及瞬态激励系统，其选择性地修改至少一个开关控制信号以激励测量电机瞬态。

6. 发明申请

US20120223668A1 Control Method and System with Feedback Indicative of Load Flux 有权
标题翻译：负载通量反馈指标的控制方法和系统
公开(公告)号：US20120223668A1
公开(公告)日：2012-09-06
申请号：US13473985
申请日：2012-05-17
申请人： Haihui Lu , David M. Messersmith , Thomas A. Nondahl
发明人： Haihui Lu , David M. Messersmith , Thomas A. Nondahl
IPC分类号： H02P23/14
CPC分类号： H02P23/0004
摘要： Systems, methods, and devices are disclosed, including an induction-motor controller having a phase path; a solid-state switch interposed on the phase path; and a controller coupled to the solid-state switch. In certain embodiments, the controller is configured to switch the solid-state switch so that the solid-state switch is conductive during a conduction angle of a cycle of an incoming AC power waveform conveyed by the phase path, calculate the conduction angle based on a generally sinusoidal reference value that has a frequency lower than a frequency of the incoming AC power waveform, and adjust the generally sinusoidal reference value based on a value indicative of flux in a load coupled to the phase path.
摘要翻译：公开了包括具有相位路径的感应电动机控制器的系统，方法和装置; 插在相位路径上的固态开关; 以及耦合到固态开关的控制器。在某些实施例中，控制器被配置为切换固态开关，使得固态开关在由相位路径传送的输入AC功率波形的周期的导通角期间导通，基于具有低于输入AC功率波形的频率的频率的大致正弦参考值，并且基于表示耦合到相位路径的负载中的通量的值来调整大致正弦参考值。

7. 发明授权

US08203304B2 Control method and system with feedback indicative of load flux 有权
标题翻译：控制方法和系统，反馈指示负载通量
公开(公告)号：US08203304B2
公开(公告)日：2012-06-19
申请号：US11897871
申请日：2007-08-31
申请人： Haihui Lu , David M. Messersmith , Thomas A. Nondahl
发明人： Haihui Lu , David M. Messersmith , Thomas A. Nondahl
IPC分类号： H02P1/28 , H02M7/155
CPC分类号： H02P23/0004
摘要： Systems, methods, and devices are disclosed, including an induction-motor controller having a phase path; a solid-state switch interposed on the phase path; and a controller coupled to the solid-state switch. In certain embodiments, the controller is configured to switch the solid-state switch so that the solid-state switch is conductive during a conduction angle of a cycle of an incoming AC power waveform conveyed by the phase path, calculate the conduction angle based on a generally sinusoidal reference value that has a frequency lower than a frequency of the incoming AC power waveform, and adjust the generally sinusoidal reference value based on a value indicative of flux in a load coupled to the phase path.
摘要翻译：公开了包括具有相位路径的感应电动机控制器的系统，方法和装置; 插在相位路径上的固态开关; 以及耦合到固态开关的控制器。在某些实施例中，控制器被配置为切换固态开关，使得固态开关在由相位路径传送的输入AC功率波形的周期的导通角期间导通，基于具有低于输入AC功率波形的频率的频率的大致正弦参考值，并且基于表示耦合到相位路径的负载中的通量的值来调整大致正弦参考值。

8. 发明授权

US07538507B2 System and method for transient-based motor speed estimation with transient excitation 有权
标题翻译：用于瞬态激励的基于瞬态电机速度估计的系统和方法
公开(公告)号：US07538507B2
公开(公告)日：2009-05-26
申请号：US11741728
申请日：2007-04-28
申请人： Haihui Lu , Thomas A. Nondahl , David M. Messersmith
发明人： Haihui Lu , Thomas A. Nondahl , David M. Messersmith
IPC分类号： G01P3/00
CPC分类号： H02P6/185 , H02P6/182 , H02P23/20
摘要： Control systems and speed estimation systems are presented having a transient-based speed estimation system that provides a rotor speed estimate based on a measured speed-related motor transient signal, and a transient excitation system which selectively modifies at least one switch control signal to excite the measured motor transient.
摘要翻译：提出了具有基于瞬态的速度估计系统的控制系统和速度估计系统，其基于所测量的与速度相关的电机瞬态信号提供转子速度估计，以及瞬态激励系统，其选择性地修改至少一个开关控制信号以激励测量电机瞬态。

9. 发明授权

US07227326B1 System and method for transient-based motor speed estimation with transient excitation 有权
标题翻译：用于瞬态激励的基于瞬态电机速度估计的系统和方法
公开(公告)号：US07227326B1
公开(公告)日：2007-06-05
申请号：US11379887
申请日：2006-04-24
申请人： Haihui Lu , Thomas A. Nondahl , David M. Messersmith
发明人： Haihui Lu , Thomas A. Nondahl , David M. Messersmith
IPC分类号： G01P3/00
CPC分类号： H02P6/185 , H02P6/182 , H02P23/20
摘要： AC motor control systems and speed controllers are presented, including a transient-based speed estimation system that provides a rotor speed estimate based on a measured speed-related motor transient signal, and a transient excitation system which selectively modifies at least one switch control signal to excite the measured motor transient. The measured speed-related transient may include a phase error signal, a phase lag signal, a peak current signal, a voltage integral signal, a motor winding voltage signal, a switching device voltage, and a voltage zero crossing signal, and the switching signal modification can comprise removal of select pulse(s) from a switching control pulse stream or selective modification of spacings between pulses to re-excite the motor transient.
摘要翻译：提出了交流电动机控制系统和速度控制器，其包括基于瞬态的速度估计系统，其基于测量的与速度相关的电动机瞬态信号提供转子速度估计，以及瞬态激励系统，其选择性地修改至少一个开关控制信号激发测量的电机瞬态。测量的速度相关瞬态可以包括相位误差信号，相位滞后信号，峰值电流信号，电压积分信号，电机绕组电压信号，开关器件电压和电压过零信号，以及开关信号修改可以包括从开关控制脉冲流中去除选择脉冲或者选择性地修改脉冲之间的间隔以重新激发电机瞬态。

10. 发明授权

US07868581B2 Induction motor analysis and control method 有权
标题翻译：感应电机分析与控制方法
公开(公告)号：US07868581B2
公开(公告)日：2011-01-11
申请号：US12039602
申请日：2008-02-28
申请人： Wei Qian , Haihui Lu , Thomas A. Nondahl
发明人： Wei Qian , Haihui Lu , Thomas A. Nondahl
IPC分类号： H02P27/16
CPC分类号： H02P23/14 , H02P27/16 , Y10S388/917
摘要： An induction motor controller that may include three phase paths leading from a power input to a power output, a solid-state switching device interposed between the power input and the power output on each of the three phase paths, a voltage sensor coupled to two of the phase paths between the solid-state switching device and the power input, a current sensor on one of the phase paths, a processor communicatively coupled to the voltage sensor, the current sensor, and the solid state switching device; and a memory coupled to the processor. The processor may be configured to calculate a motor parameter based on a signal from the voltage sensor and a signal from the current sensor and store the calculated motor parameter in memory.
摘要翻译：一种感应电动机控制器，其可以包括从电力输入到功率输出的三相路径，插在电源输入端和三相路径中的每一个上的功率输出端之间的固态开关装置，固态开关器件和功率输入之间的相位路径，在一个相位路径上的电流传感器，通信地耦合到电压传感器，电流传感器和固态开关器件的处理器; 以及耦合到处理器的存储器。处理器可以被配置为基于来自电压传感器的信号和来自电流传感器的信号来计算电动机参数，并将计算的电动机参数存储在存储器中。

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