Abstract: Embodiments of the innovation relate to a workstation assembly, comprising: a frame; a carriage assembly moveably coupled to the frame, the carriage assembly having a carriage frame and an imaging device coupled to the carriage frame; and a workstation device disposed in electrical communication with the carriage assembly, the workstation device having a controller including a processor and a memory, the controller configured to: transmit an image signal of a workspace from the imaging device to a user device, receive a control signal from the remote user device, and adjust a position of the carriage assembly on the frame and relative to the workspace based upon the control signal.

Abstract: Disclosed is a series mode modulation configuration and a parallel voltage equivalent modulation configuration. In the series mode modulation configuration a unipolar modulation is utilized. Unipolar modulation utilizes a zero vector and produces a voltage across the load with a frequency factor of 2×. In the parallel voltage equivalent mode modulation configuration there are two H bridges driving two coils with identical current. The H bridges can advantageously be operated out of phase with one another (e.g., 180 out of phase with one another to interleave the currents to further reduce ripple current stress.

Abstract: A power supply circuit supplies a current from a DC voltage source to first and second actuator coils to support an object in a non-contact manner by electromagnetic force. The power supply circuit includes a first leg connected to the DC voltage source, and a control unit. The first leg has first upper and lower arm switching elements connected in series. The control unit turns the switching elements on and off to control the current supplied to the actuator coils. A midpoint between the switching elements is connected to a connection point between the actuator coils. A freewheeling diode is provided for each of the switching elements in parallel. The control unit performs control so that the current flows through the first actuator coil in a direction toward the connection point, and the current flows through the second actuator coil in a direction coming out of the connection point.

Abstract: A system for automated guided vehicle safety may include an automated guided vehicle (AGV) having a propulsion system configured to move the AGV, and a processor configured to control the propulsion system, and a laser imaging system configured to deploy a virtual safety fence at least partially surrounding the AGV. The laser imaging system may include a plurality of laser imaging sensors including a front sensor and a rear sensor, and a movable boom, the front sensor being mounted to the movable boom and configured to extend in front of the housing of the AGV.

Abstract: A method for controlling a stepper motor includes calculating a duty cycle of a current provided to the stepper motor and comparing a difference, between the calculated duty cycle and a base duty cycle of current provided to the stepper motor under a base load condition, to a reference duty cycle value. The method also includes adjusting a peak current level of the current provided to the stepper motor responsive to the comparison.

Abstract: A surgical cart for supporting a robotic arm includes a vertically-extending support column, a carriage movably coupled to the support column and configured to carry a robotic arm, and a braking mechanism.

Abstract: A control circuit including a motor drive unit and a processing control unit is provided. The motor drive unit includes a drive current for a motor according to a modulation signal, and the motor is powered by a storage battery. The processing control unit obtains an actual speed of the motor, calculate the modulation signal by comparing the actual speed and a target speed, and transmit the modulation signal to the motor drive unit. Also, the modulation signal is used to control rotation of the motor by modulating the drive current, so that the actual speed tends to be equal to the target speed.

Abstract: An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. A pump configuration includes a single VFD configuration, the single shaft electric motor, and the single shaft hydraulic pump mounted on the single pump trailer. The single VFD configuration converts the electric power at the power generation voltage level distributed from the power distribution trailer to a VFD voltage level and drives the single shaft electric motor to control the operation of the single shaft electric motor and the single hydraulic pump. The VFD voltage level is a voltage level that is required to drive the single shaft electric motor. The VFD configuration also controls operation of the auxiliary systems based on the electric power at the auxiliary voltage level.

Abstract: A power tool, such as a drilling power tool, configured to perform an easy hole start operation upon actuation of a trigger. When the trigger is actuated, the motor is driven at a low speed value. The motor speed is increased to a second speed value during a predetermined time threshold and then driven at the second speed value until the trigger is no longer actuated. In some embodiments, the easy hole start operation may be implemented by an easy hole start switch. In some embodiments, if the easy hole start operation persists for a time greater than a predetermined time threshold, then the motor will shut off.

Abstract: A drive system for a rotating electric machine system includes: a first inverter and a second inverter connected to first and second ends of multi-phase windings respectively; a selection unit performing selection between a first setting representing that the first inverter is set to a switch drive inverter and the second inverter is set to a neutral-point drive inverter and a second setting representing that the second inverter is set to the switch drive inverter and the first inverter is set to the neutral-point drive inverter; and a drive control unit performing a switch drive task of performing on-off driving of the upper and lower arm switches of the switch drive inverter to thereby input/output power to/from the rotating electrical machine; and a neutral-point drive task of maintaining at least one of the upper and lower arm switches of the neural-point drive inverter in an on state.

Abstract: A method and system for operating an electric machine are described. In one example, the system includes a motor stator having a first group of windings and a second group of windings. Each group of the windings is electrically coupled to a different inverter so that the system may have a layer of operational redundancy.

Abstract: An electronic device is provided. The electronic device includes a board including a first conductive line, a second conductive line, a ground plane, and a conductive via hole connecting the first conductive line and the ground plane, at least one electronic component disposed in the board, an insulation member covering the at least one electronic component, and a conductive layer, the conductive layer includes a first part formed on a surface of the insulation member, a second part extending from an edge of the first part and electrically connected to the first conductive line, and a third part spaced apart from the second part and electrically connected to the second conductive line, and the electronic device includes at least one transmission line constituted by the second conductive line and the third part of the conductive layer.

Abstract: A robot system includes one or more combinations of a driving section configured to receive supply of electric power and generate a rotation output of an output shaft and receive supply of a rotating force to the output shaft and generate electric power, a movable section moved by the rotation output, a detecting section configured to detect an angular position of the output shaft, resistor equipment coupled to the driving section, and a switch that can turn on and off coupling of the resistor equipment and the driving section and a control section configured to control the robot system.

Abstract: A stator assembly for a planar electrical motor includes coil conductors arranged in a stator layer, elongated in a first direction and arranged side by side in a second direction perpendicular to the first direction. The coil conductors are connected to form a three-phase system, with a first forward conductor and first return conductor of the first phase connected in series to the first forward conductor, a second forward conductor and second return conductor of the second phase connected in series with the second forward conductor, and a third forward conductor and third return conductor of the third phase connected in series with the third forward conductor. The three-phase system has first and second opposite sides. The first forward conductor and the first return conductor are electroconductively connected in series by first and second horizontal connecting conductors arranged in the stator layer on the second and first side, respectively.

Abstract: A system for simultaneously controlling a plurality of PM AC motors includes a single VFD operatively connected to a power source. The single VFD is programmable to have predetermined operating conditions. The plurality of PM AC motors is operatively connected to the single VFD. Each PM AC motor is free of a built-in VFD. Each PM AC motor is operated in accordance with the operating conditions of the single VFD.

Abstract: A method for controlling transient operation of a variable flux machine (VFM) includes, during a shunt angle transition, receiving a commanded and measured shunt angle when operating in a predetermined operating region, e.g., maximum torque per ampere or field weakening. The method includes calculating d-axis and q-axis delta current terms (?Id and ?Iq) required to maintain an output torque level of the VFM through a duration of the shunt angle transition, then applying the required ?Id and ?Id terms as feed-forward terms to adjust a d-axis current (Id) term and a q-axis current (Iq) term from a respective lookup table. In this manner the controller maintains the output torque level of the VFM during the shunt angle transition. An electric powertrain includes the VFM, a TPIM, and the controller. A PM machine may be controlled by substituting temperature for shunt angle.

Abstract: A nuclear emergency multifunctional operation robot includes a base, a mechanical arm, a tool change-over device, and motion supporting devices. The base includes a pedestal, a mounting seat A, a mounting seat B, a mounting seat C, a rotation driving mechanism A, and a rotation driving mechanism B. The front end of the mechanical arm is connected to the mounting seat B; the tool change-over device includes a male connector and a female connector which are abutted with or separated from each other; and the motion supporting devices are used to drive the nuclear emergency multifunctional operation robot to move. The present disclosure has the advantages that the base can be integrated with various end tools, so that the operation robot conveniently changes over tools according to operation needs to conduct various types of operations.

Abstract: An electric work machine includes a motor, a manipulator, a first switch, a second switch, and a control circuit. The manipulator is on-operated or off-operated by a user of the electric work machine. Each of the first switch and the second switch is turned on or off in response to the manipulator being on-operated or off-operated. The control circuit executes a motor control process in accordance with a computer program. The control circuit receives first switch information from the first switch, and receives second switch information from the second switch. The motor control process outputs a drive command for driving the motor in response to the first switch information and the second switch information indicating that the manipulator is on-operated.

Abstract: An electric power conversion apparatus includes a rotating electric machine including armature windings, a first inverter connecting the armature windings with a first storage battery, a second inverter connecting the armature windings with a second storage battery, a changeover switch configured to connect or disconnect between first and second positive buses or between first and second negative buses, and an operating unit configured to perform, with the changeover switch being in an ON state, first and second energization processes alternately. In the first energization process, electric current is supplied from the first storage battery to the second storage battery via the first inverter, at least one of the armature windings and the second inverter. In the second energization process, electric current is supplied from the second storage battery to the first storage battery via the second inverter, at least one of the armature windings and the first inverter.

Abstract: A method for compensating a signal of a motor includes acquiring an original signal and nonlinear parameters of the motor; calculating a compensation signal for the original signal according to the acquired nonlinear parameters; and loading the calculated compensation signal into the motor to excite the motor to vibrate. An electronic apparatus and a storage medium are also provided. In this method, the original excitation signal is compensated for nonlinearity according to the nonlinear motor parameters, and is then used for exciting the motor. Therefore, the actual vibration effect can be closer to the expected effect as designed, which can bring more desirable tactility experience.