公开(公告)号：US20220407447A1

公开(公告)日：2022-12-22

申请号：US17352792

申请日：2021-06-21

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Jonathan D. Hoffman ,  Brian Fast ,  Robert J. Miklosovic

IPC: H02P29/024 ,  H02P29/40 ,  H02P29/10

Abstract: A system and method for shaping the trajectory of a motion command to reduce the effects of a load on performance of a motor dynamically modifies the motion profile in real time to limit the reference signals in the motion profile to feasible commands. A load observer determines an estimated disturbance acceleration. The estimated disturbance acceleration includes the dynamics of the controlled load and is used to modify a maximum and a minimum limit for the acceleration reference. The acceleration limits are, in turn, used to determine velocity limits. The motion profile and modified acceleration and velocity limits are provided to a state filter which determines a new motion profile for use by the motor drive to control operation of a motor and to control the load connected to the motor.

公开(公告)号：US10756660B2

公开(公告)日：2020-08-25

申请号：US15976923

申请日：2018-05-11

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Robert J. Miklosovic ,  Brian Fast ,  Mark Chaffee

IPC: H02P23/12 ,  H02P23/14 ,  H02P23/20

Abstract: A motor drive having controller settings which will result in improved tuning-less performance is disclosed. Gain values for the control loops and/or observer are determined independently of the mechanical loading and the resultant effects of that loading on the motor. The motor drive includes a control loop operable to receive a command signal and to generate a controller reference signal to achieve desired operation of a motor connected to the motor drive. The motor drive also includes a load observer operable to generate a signal that estimates a response required by the motor drive as a result of a load present on the motor. The response estimate signal is provided to the controller to isolate the effects of the load dynamics from operation of the control loops within the controller. A modified controller reference signal is generated as a function of the response estimate signal and the controller reference signal.

公开(公告)号：US20230400845A1

公开(公告)日：2023-12-14

申请号：US17839004

申请日：2022-06-13

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Yujia Cui ,  Jiangang Hu ,  Rangarajan Tallam ,  Robert J. Miklosovic

IPC: G05B23/02

CPC classification number: G05B23/0283

Abstract: An industrial system and a method including using a processor, estimating a reliability of a component of an industrial system using a prognostic model program, using the processor, updating weighting vector parameters of the prognostic model program based on collected data and a previous reliability estimate using machine learning, and using the processor, selectively generating a warning based on comparison of the reliability with a threshold and/or deviation of weighting vector parameters.

公开(公告)号：US11682994B2

公开(公告)日：2023-06-20

申请号：US17682439

申请日：2022-02-28

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Robert J. Miklosovic ,  Brian Fast

IPC: H02P23/04

CPC classification number: H02P23/04

Abstract: A system includes a motor configured to be coupled to a non-rigid load and a control system disposed within, or communicatively coupled to, a drive system configured to control an operation of the motor. The control system includes a processor and a memory accessible by the processor. The memory stores instructions that, when executed by the processor, cause the processor to generate a smooth move input profile to control the operation of the motor based on inputs specifying a desired operation of the motor, apply a notch filter having a notch filter frequency to the smooth move input profile to produce a filtered smooth move input profile, and send a command to the drive system based on the filtered smooth move input profile, wherein the command is configured to adjust the operation of the motor.

公开(公告)号：US11264929B2

公开(公告)日：2022-03-01

申请号：US16574606

申请日：2019-09-18

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Robert J. Miklosovic ,  Brian Fast

IPC: H02P23/04

Abstract: A system includes a motor configured to be coupled to a non-rigid load and a control system disposed within, or communicatively coupled to, a drive system configured to control an operation of the motor. The control system includes a processor and a memory accessible by the processor. The memory stores instructions that, when executed by the processor, cause the processor to generate a smooth move input profile to control the operation of the motor based on inputs specifying a desired operation of the motor, apply a notch filter having a notch filter frequency to the smooth move input profile to produce a filtered smooth move input profile, and send a command to the drive system based on the filtered smooth move input profile, wherein the command is configured to adjust the operation of the motor.

公开(公告)号：US11121660B2

公开(公告)日：2021-09-14

申请号：US16673793

申请日：2019-11-04

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Brian R. Fast ,  Robert J. Miklosovic

IPC: G05B19/21 ,  H02P23/00 ,  H02P23/14

Abstract: Provided herein are systems, methods, and software for improving drive efficiency in an industrial automation system. In one implementation, a system comprises a mechanical load, an electromechanical device attached to the mechanical load, and a drive coupled to the electromechanical device. A processor is programmed to generate and display an acceleration curve, a duplicate acceleration curve, an energy curve and a duplicate energy curve. A user input is received indicating a change to at least a portion of the duplicate acceleration curve, and a change to the duplicate energy curve is calculated and displayed. A modified command signal based on the user input is calculated, and the drive is configured to control the electromechanical device via the modified command signal to mechanically operate the mechanical load perform a task.

公开(公告)号：US11086281B2

公开(公告)日：2021-08-10

申请号：US15812565

申请日：2017-11-14

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Brian Fast ,  Robert Guenther ,  Joachim Thomsen ,  Robert J. Miklosovic ,  Mark A. Chaffee

IPC: G05B17/02 ,  G05B19/402 ,  G05B19/05

Abstract: A system and method for online simulation of a controlled machine or process utilizes a simplified model of the system dynamics and may be used with hardware in the loop to evaluate performance of the controlled system or with software in the loop to perform commissioning of the control program prior to completion of the mechanical installation. The simplified model includes dominant order dynamics of the controlled system such as the inertia of the system and a damping factor. Further, the online simulation is scheduled to execute at an update rate slower than the update rate of the control loops within the motor drive. The simplified model and reduced update rate reduce the computational burden on the processor such that the simulation may be performed either on the industrial controller or on the motor drive.

公开(公告)号：US10469016B1

公开(公告)日：2019-11-05

申请号：US16025086

申请日：2018-07-02

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Brian R. Fast ,  Robert J. Miklosovic

IPC: H02P23/14 ,  H02P23/00

Abstract: Provided herein are systems, methods, and software for improving drive efficiency in an industrial automation system. In one implementation, a system comprises a mechanical load, an electromechanical device attached to the mechanical load, and a drive coupled to the electromechanical device. A processor is programmed to generate and display an acceleration curve, a duplicate acceleration curve, an energy curve and a duplicate energy curve. A user input is received indicating a change to at least a portion of the duplicate acceleration curve, and a change to the duplicate energy curve is calculated and displayed. A modified command signal based on the user input is calculated, and the drive is configured to control the electromechanical device via the modified command signal to mechanically operate the mechanical load perform a task.

公开(公告)号：US20180292255A1

公开(公告)日：2018-10-11

申请号：US15483644

申请日：2017-04-10

Applicant: Rockwell Automation Technologies. Inc.

Inventor： Robert J. Miklosovic ,  Mark A. Chaffee

IPC: G01H1/00 ,  H02P27/08 ,  G01N29/42 ,  G01N29/46

CPC classification number: G01H1/003 ,  G01H3/04 ,  G01M7/00 ,  G01M13/028 ,  G01M13/045 ,  G01N29/14 ,  G01N29/4436 ,  G01N29/46 ,  H02P6/10 ,  H02P23/12 ,  H02P23/14

Abstract: An improved system and method for analyzing motor performance to detect vibration of an electric machine controlled by a motor drive is disclosed. A load observer determines an estimated torque present as a load on the motor as a function of input signals corresponding to a desired torque to be generated by the motor and to a measured angular position of the motor during operation. The motor drive determines a frequency response of the estimated torque to identify at what magnitude and frequency any vibration components are present within the estimated torque signal. The motor drive compares the frequency response of the estimated torque signal to set points. If the measured magnitude of vibration at a particular frequency, as seen in the frequency response, exceeds a threshold set in one of the set points for that frequency, the motor drive generates an output signal indicating an excessive vibration is present.

公开(公告)号：US20180262144A1

公开(公告)日：2018-09-13

申请号：US15976923

申请日：2018-05-11

Applicant: Rockwell Automation Technologies, Inc.

Inventor： Robert J. Miklosovic ,  Brian Fast ,  Mark Chaffee

IPC: H02P23/12 ,  H02P23/14

Abstract: A motor drive having controller settings which will result in improved tuning-less performance is disclosed. Gain values for the control loops and/or observer are determined independently of the mechanical loading and the resultant effects of that loading on the motor. The motor drive includes a control loop operable to receive a command signal and to generate a controller reference signal to achieve desired operation of a motor connected to the motor drive. The motor drive also includes a load observer operable to generate a signal that estimates a response required by the motor drive as a result of a load present on the motor. The response estimate signal is provided to the controller to isolate the effects of the load dynamics from operation of the control loops within the controller. A modified controller reference signal is generated as a function of the response estimate signal and the controller reference signal.