Rockwell Automation Technologies Incorporated

Jingbo Liu

Thomas Arthur Nondahl

Semyon Royak

Peter B Schmidt

Jingya Dai

Ehsan Al-Nabi

Mark Melvin Harbaugh

Robert J Breitzmann

Thong T Nguyen

Paul David Schmirler

Navid RezA Zargari

Zhongyuan Cheng

Timothy T Duffy

Hannah M Schermerhorn

Timothy M Rowan

Robert H Schmidt

Alex Laurence Nicoll

Xikai Sun

Takayoshi Matsuo

Gennadi Sizov

Kun Wei

Thomas M Cahill

Robert John Breitzman

Mark H Harbaugh

Various embodiments of the present technology relate to digital twins of devices and assemblies. More specifically, some embodiments relate to the orchestration of digital twin models for representing industrial systems based on characteristics of digital twins. In an embodiment, a method of operating an orchestration engine in an industrial automation environment comprises identifying a targeted outcome for modeling the industrial automation environment, configuring a digital twin environment corresponding to the industrial automation environment based at least on the targeted outcome, and executing a process associated with the industrial automation environment using the digital twin environment.

Digital twin outcome-driven orchestration

A non-transitory computer-readable medium includes computer-executable instructions that, when executed by at least one processor, are configured to cause the at least one processor to receive an inquiry from a training system, in which the inquiry includes a request for assistance to perform a first operation, retrieve a training profile for the first operation from a database based on the inquiry, and transmit the training profile to the training system, in which the training system is configured to present image data, audio data, or both regarding the first operation based on the training profile. The computer-executable instructions are also configured to cause the at least one processor to receive variant feedback from the training system, generate an updated training profile based on the variant feedback, store the updated training profile in the database.

System and method to generate training content based on audio and image feedback data

A system includes a training system configured to display first image data and a remote expert system configured to display second image data that corresponds to the first image data, receive feedback data associated with the second image data, and transmit a command to the training system based on the feedback data. The command is configured to modify the first image data presented via the training system.

System and method to modify training content presented by a training system based on feedback data

A non-transitory computer-readable medium includes computer-executable instructions that, when executed by at least one processor, may cause the at least one processor to retrieve a first training profile of a plurality of training profiles from a database, identify a plurality of index keywords in a respective training content of the first training profile, in which the respective training content includes audio data, video data, or both, and divide the first training profile into a plurality of sections based on the plurality of index keywords. Each of the plurality of sections is selectable for playback.

System and method to index training content of a training system

An electric motor in which at least one of the rotor and the stator has an asymmetric design is disclosed. The electric motor is divided into a number of segments, where each segment has an equal number of windings and an equal number of poles. The physical construction of each pole within a segment is identical and the number of turns of each winding within a segment is identical. The asymmetry is formed by varying the physical construction of the either the rotor or the stator within one segment from the corresponding construction of the rotor or stator in the other segments. The asymmetries are designed to improve one or more operating characteristics such as sensorless performance, torque ripple, or cogging torque in the motor.

Electric motor with asymmetric design for improved operation

Disclosed examples include power conversion systems and methods to operate an inverter to drive a motor load through an intervening output filter, a transformer and a cable, including a current regulator to compute a command value according to a current reference value and a motor current feedback value, a cross-coupled feedforward component to compensate the command value by an estimated cross-coupled voltage value to compute a control output value, a cross-coupled object component to compute the motor current feedback value according to a voltage value using a plant transfer function representing the output filter, the transformer, the cable and the motor load, and a controller to provide the inverter switching control signals to control the inverter according to the control output value.

Feedforward control of motor drives with output sinewave filter

Disclosed examples include power conversion systems, methods and computer readable mediums to operate an inverter to drive a motor load through an output filter, in which a control output value is computed according to a current reference value and a current feedback value using a proportional-integral (PI) current regulator, the control output value is filtered using a lag compensator filter to compute an inverter output command value, and the inverter is controlled according to the inverter output command value.

Current control of motor drives with output sinewave filter

Disclosed examples include motor drive power conversion systems with an inverter, as well as a controller methods to drive a motor in which output filter capacitor currents are computed and used to compensate the motor control in consideration of damping resistance values of an output filter.

Sensorless motor drive vector control with feedback compensation for filter capacitor current

Disclosed examples include power conversion systems, methods and computer readable mediums to operate an inverter to drive a motor load through an intervening filter, by computing a speed error value according to a speed reference value and a speed feedback value, computing a torque reference value according to the speed error value, computing a motor current reference value according to the torque reference value, compensating the motor current reference value according to capacitor currents of the output filter using a transfer function representing an output current to input current amplitude vs. frequency behavior of the output filter and the motor load, and controlling the inverter according to the inverter output current reference value.

Control of motor drives with output sinewave filter capacitor current compensation using sinewave filter transfer function

Motor drives, methods and estimation systems are presented for estimating a rotor position of a motor load in which four sets of inverter output current samples obtained at four different sample times in a given inverter PWM cycle are converted into a corresponding stationary reference frame current value pairs, and the rotor position estimate is computed according to the stationary reference frame current values.

Rotor position estimation apparatus and methods

Motor drive control apparatus and methods are presented for speed reversal control for drives used with output filters and transformers using a high or maximal drive current command to facilitate dissipation of regenerative energy seen in this system during speed reversal with open loop control to reverse the spin direction of a driven motor while quickly transitioning through zero speed.

Method and apparatus for speed reversal control of motor drive

Cascade H-Bridge inverters and carrier-based level shift pulse width modulation techniques are presented for generating inverter stage switching control signals, in which carrier waveform levels are selectively shifted to control THD and to mitigate power distribution imbalances within multilevel inverter elements using either complementary carrier or complementary reference modulation techniques.

Cascaded H-bridge (CHB) inverter level shift PWM with rotation

Methods and systems are presented for closed loop motor speed and torque control without a sensor at the motor, in which configuration parameters are received from a user interface to define operating characteristics of a filter, a transformer, a cable, and the motor coupled with the output of a motor drive, and an object model of the motor drive is configured according to the filter, transformer, cable and motor configuration parameters to facilitate sensorless closed loop motor speed and/or torque control.

Methods and systems for sensorless closed loop motor speed and torque control

Disclosed examples include methods, computer readable mediums and motor drive power conversion systems for sensorless speed control of a motor driven by an inverter through an intervening filter, a transformer and a motor cable, in which sensorless vector control is used to regulate the motor speed based on a speed feedback value computed according to voltage or current values associated with the motor drive using an observer having formulas and impedance parameters of the filter, the transformer, the motor cable and the motor.

Sensorless motor drive vector control

Motor drive control apparatus and methods are presented for sensorless control of a driven motor using open loop current regulated control during low-speed operation and an EMF-based position observer for position estimation during higher speed operation, with zero feedback speed during low-speed open-loop operation and feedback speed estimated by the EMF-based observer during high-speed operation and with velocity mode control over the full speed range and mode control hysteresis for smooth transitions between open loop and EMF-based observer control.

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Grafton, WI, United States of America

Jingbo Liu