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公开(公告)号：US11283388B1
公开(公告)日：2022-03-22
申请号：US17134801
申请日：2020-12-28
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Gennadi Sizov , Zoran Vrankovic , Todd M. Oestreich , Gary L. Skibinski
IPC: H02P27/08 , H02P21/18 , H02M7/5387 , H02P21/00 , H02P21/22
Abstract: A motor controller executing a current regulator and a modulation routine in separate update intervals provides an improved fundamental voltage waveform for a motor controlled by the motor controller. The current regulator is executed at a first periodic update rate and the modulation routine is executed at a second periodic update rate, where the frequency at which the modulation routine executes is at least twice the frequency at which the current regulator executes. Executing the current regulator and the modulation routines at different frequencies results in the current regulator generating a single voltage reference signal for multiple periods of the modulation routine. To reduce voltage ripple induced by decoupling execution of the current regulator and the modulation routine, the motor controller extrapolates the voltage reference generated by the current regulator into multiple voltage reference signals, where a unique voltage reference signal is provided for each period of the modulation routine.
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公开(公告)号：US11387761B2
公开(公告)日：2022-07-12
申请号：US17103820
申请日：2020-11-24
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Zoran Vrankovic , Gennadi Sizov , Gary L. Skibinski , David A. Figie , Yao Da , Todd M. Oestreich , Adam M. Shea
Abstract: A motor drive that outputs a sinusoidal waveform utilizes power switching devices operable at high switching frequencies. The switching devices may be operated, for example, between twenty kilohertz and one megahertz. A first filter is included at the output of the motor drive which has a bandwidth selected to attenuate voltage components at the output which are at the switching frequency or multiples thereof such that the output voltage waveform is generally sinusoidal. Additional filtering is included within the motor drive to establish a circulation path for common mode currents within the motor drive. Further, a shield is provided adjacent to those components within the motor drive that may experience voltage or current waveforms at the switching frequency or multiples thereof to cause radiated emissions to establish eddy currents within the EMI shield rather than passing through the shield into the environment.
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Patent Agency Ranking
公开(公告)号：US09673725B2
公开(公告)日：2017-06-06
申请号：US14710038
申请日：2015-05-12
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Gerry M. Nagel , Todd M. Oestreich
CPC classification number: H02M5/44 , H02M3/155 , H02M3/156 , H02M2001/007
Abstract: A method for controlling voltage of a DC bus in a converter circuit is provided. The method includes monitoring a duty cycle of a switch that connects a resistive circuit across the DC bus, the switch being closed when the DC bus voltage reaches an upper voltage value and opened when the DC bus voltage reaches a lower voltage value and altering the lower voltage value based upon the duty cycle of the switch.
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公开(公告)号：US09207671B2
公开(公告)日：2015-12-08
申请号：US13650626
申请日：2012-10-12
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Murray E. Hersh , Todd M. Oestreich , Gerry M. Nagel
CPC classification number: G05B23/0278
Abstract: An automation network that utilizes motor drives to diagnose faults, and provide potential solutions to a user. The fault status and/or diagnostic remedies may be displayed via a user display integrated with (e.g., in a single cabinet with) the motor drives and/or coupled to (e.g., in an external device separate from) the motor drives. As such, a logic process or other algorithm may be executed by the motor drive to determine a potential set of solutions for any given fault, based on, for example, determined errors and likelihood of causes for presentation to a user. In this manner, motor drives may allow for user corrective actions to be communicated to a user.
Abstract translation: 一个利用电机驱动器诊断故障并为用户提供潜在解决方案的自动化网络。 故障状态和/或诊断补救措施可以经由与电动机驱动器集成（例如，在单个机柜中）集成的用户显示器和/或耦合到（例如，与电动机驱动器分开的外部设备）中。 因此，逻辑过程或其他算法可以由电动机驱动器执行，以基于例如所确定的错误以及呈现给用户的原因的可能性来为任何给定故障确定潜在的解决方案集合。 以这种方式，电动机驱动器可以允许将用户校正动作传达给用户。
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公开(公告)号：US20150244281A1
公开(公告)日：2015-08-27
申请号：US14710038
申请日：2015-05-12
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Gerry M. Nagel , Todd M. Oestreich
IPC: H02M5/44
CPC classification number: H02M5/44 , H02M3/155 , H02M3/156 , H02M2001/007
Abstract: A method for controlling voltage of a DC bus in a converter circuit is provided. The method includes monitoring a duty cycle of a switch that connects a resistive circuit across the DC bus, the switch being closed when the DC bus voltage reaches an upper voltage value and opened when the DC bus voltage reaches a lower voltage value and altering the lower voltage value based upon the duty cycle of the switch.
Abstract translation: 提供了一种用于控制转换器电路中的DC总线的电压的方法。 该方法包括监视连接跨越DC总线的电阻电路的开关的占空比，当DC总线电压达到上限值时开关闭合，当DC总线电压达到较低电压值时，开关闭合，并改变下限 基于开关的占空比的电压值。
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公开(公告)号：US20230324432A1
公开(公告)日：2023-10-12
申请号：US17717812
申请日：2022-04-11
Applicant: ROCKWELL AUTOMATION TECHNOLOGIES, INC.
Inventor： Zoran Vrankovic , Arun K. Guru , Todd M. Oestreich , Theodore A. Rodriguez, JR. , Kristin N. Yee , Jon P. Vanderpas
Abstract: The present disclosure is directed to an integrated drive module assembly with vibration-based anomaly detection. The integrated drive module assembly may include a motor coupled to a drive module. The drive module may provide electric power to the motor for operation. Moreover, the drive module may provide control signals to control operations of the motor. The drive module may include an accelerometer and a processing circuit. The processing circuit may determine baseline vibration profiles of the motor during operation using the accelerometer. Subsequently, the processing circuit may determine anomaly conditions of the motor based on comparing the vibrations of the motor with the baseline vibration profiles. Accordingly, the integrated drive module assembly may facilitate performing countermeasures with low latency based on detecting the anomaly conditions using the accelerometer when the drive module is coupled to the motor.
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公开(公告)号：US20210091697A1
公开(公告)日：2021-03-25
申请号：US17103820
申请日：2020-11-24
Applicant: Rockwell Automation Technologies, Inc.
Inventor： Zoran Vrankovic , Gennadi Sizov , Gary L. Skibinski , David A. Figie , Yao Da , Todd M. Oestreich , Adam M. Shea
Abstract: A motor drive that outputs a sinusoidal waveform utilizes power switching devices operable at high switching frequencies. The switching devices may be operated, for example, between twenty kilohertz and one megahertz. A first filter is included at the output of the motor drive which has a bandwidth selected to attenuate voltage components at the output which are at the switching frequency or multiples thereof such that the output voltage waveform is generally sinusoidal. Additional filtering is included within the motor drive to establish a circulation path for common mode currents within the motor drive. Further, a shield is provided adjacent to those components within the motor drive that may experience voltage or current waveforms at the switching frequency or multiples thereof to cause radiated emissions to establish eddy currents within the EMI shield rather than passing through the shield into the environment.
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