Abstract: A processor receives an indication of a fault from a first isolation device. The processor sends a first open command to a downstream isolation device downstream of the fault, identifies a tie-in isolation device, and identifies a line section without current monitoring positioned between the tie-in isolation device and the downstream isolation device. The line section has a plurality of line segments, each having a load rating. The processor receives incoming and exiting current measurements for the line section and estimates a first current load for each of the line segments in the line section based on the incoming and exiting current measurements and the load ratings. The processor selects an intermediate isolation device between the tie-in isolation device and the downstream isolation device based on the first current loads, sends a second open command to the intermediate isolation device, and sends a close command to the tie-in isolation device.

Abstract: Systems and methods for control of the delivery of contaminates are provided. A conveyor moves contaminate particles from a hopper into an airflow. The contents of a hopper at multiple time points within a sliding window of time are weighted with a scale. A processor applies linear regression to a data set comprising the time points as an independent variable and the weight measurements as a dependent variable, resulting in a determination of a line fitting the data set. A processor determines a current mass flow rate of the contaminate particles from the slope of the line. The processor determines an estimated change in the conveyor motor speed needed to achieve the target mass flow rate, the estimated change determined from a predetermined mapping of flow rates to motor speeds, the estimated change based on the current mass flow rate, the target mass flow rate, and a predetermined fraction.

Abstract: A facility receives an indication of a rate of energy output sought from a production array of solar panels. The facility controls a power inverter to which the production array is connected to deliver to an electrical grid to which the power inverter is connected a rate of energy output that is based on the indicated rate of energy output.

Abstract: A preventive maintenance system of a machine tool capable of making determination of presence of an abnormality mechanically and automatically, which has conventionally been performed on the basis of the feeling of an operator and detecting an abnormality more accurately in an earlier stage is provided.

Abstract: One variation of a method for assisting execution of manual protocols at production equipment includes: identifying a site occupied by a mobile device based on a geospatial location of a device; identifying a space within the building occupied by the device based on identifiers of a set of wireless access points wirelessly accessible to the device and known locations of wireless access points within the building; loading a protocol associated with an equipment unit in the space; calculating a position of the device within the space based on positions optical features, detected in a field of view of an optical sensor at the device, relative to reference features represented in a space model of the space; and, when the position of the device falls within a threshold distance of a reference location proximal the equipment unit defined in a step of the procedure, rendering guidance for the step.

Abstract: A numerical control apparatus of a machine tool that performs tapping, includes a numerical control, an acceleration learning block, an acceleration/deceleration processing unit that applies an acceleration/deceleration process to the command acceleration and the position command value to calculate a post-acceleration/deceleration position command value, a position control unit that calculates a speed command value based on the post-acceleration/deceleration position command value, a speed/torque control unit that calculates a motor torque command value from the speed command value, and a current control unit that calculates a motor current value of a spindle motor from the motor torque command value. The acceleration learning block outputs, as the command acceleration A, an initial command acceleration A[0] which is smaller than the calculated command acceleration, in accordance with a state quantity of the spindle motor, to the acceleration/deceleration processing unit.

Abstract: An electropneumatic control system for a pneumatic drive and electropneumatic position controller for the system, wherein a volume flow booster having a bypass valve is downstream of the position controller to increase the air capacity, where the pneumatic drive is run in a new operating mode multiple times at maximum air capacity in a first direction to support an operator in adjusting the bypass valve, and where upon exceeding a specified position, the air capacity is set to zero, an overshoot value of the pneumatic drive is determined and output for the operator on a display such that by varying adjustment of the bypass valve, the operator can find and set an adjustment of the valve having low overshoot such that with an adjustment found in such a manner, the transition behavior of the control system can be significantly improved without additional effort.

Abstract: To provide a numerical control machine that can identify a factor of noise.

Abstract: A plant or refinery may include equipment such as reactors, heaters, heat exchangers, regenerators, separators, or the like. Types of heat exchangers include shell and tube, plate, plate and shell, plate fin, air cooled, wetted-surface air cooled, or the like. Operating methods may impact deterioration in equipment condition, prolong equipment life, extend production operating time, or provide other benefits. Mechanical or digital sensors may be used for monitoring equipment, and sensor data may be programmatically analyzed to identify developing problems. For example, sensors may be used in conjunction with one or more system components to detect and correct maldistribution, cross-leakage, strain, pre-leakage, thermal stresses, fouling, vibration, problems in liquid lifting, conditions that can affect air-cooled exchangers, conditions that can affect a wetted-surface air-cooled heat exchanger, or the like. An operating condition or mode may be adjusted to prolong equipment life or avoid equipment failure.

Abstract: A controller-implemented method of controlling a three dimensional (3D) printing process, comprises presenting printing options (20) of the 3D printing process at a user interface (16); accepting settings (22) from the user interface (16) based on the presented printing options (20); determining a printing instruction (24) based on the settings (22), the printing instruction (24) to be used to manufacture a three-dimensional (3D) object; and determining a post-processing instruction (26) based on the settings (22), the post-processing instruction (26) to be used in post-processing the 3D object.

Abstract: A method, controller, wind power plant, and computer program product are disclosed for operating a wind power plant comprising a plurality of wind turbines, the wind power plant producing a plant power output. The method comprises receiving a modulation request signal indicating a requested modulation of the plant power output, the requested modulation specifying a modulation frequency. The method further comprises generating a respective power reference signal for each of at least two wind turbines of the plurality of wind turbines selected to fulfill the requested modulation, Each generated power reference signal includes a respective modulation component corresponding to a portion of the requested modulation and having a frequency different than the modulation frequency.

Abstract: To calculate the prediction of the power generation amount with high accuracy even when the amount of the track record data of the Generator power generation amount is insufficient or the amount of the weather track record data similar to the weather prediction result is small.

Abstract: A system comprising a controllable alternating current power source; an active rectifier coupled to the controllable alternating current power source and configured to rectify an output of the controllable alternating current power source to supply a direct current to a load; and a controller configured to adjust at least one of a parameter of the controllable alternating current power source and a parameter of the active rectifier in response to a target output.

Abstract: Controlling a beam cutting device having a cutting tool is disclosed. A workpiece part can be cut out of a workpiece along a cutting contour. A cutting plan for the workpiece having a cutting contour for a workpiece part to be cut out of the workpiece is specified. Subsequently, the relative position of the workpiece and/or of the cutting plan and/or of the workpiece part to be cut out is determined. The relative position of the at least one support point of the workpiece support is determined. Subsequently, at least one risk region on the cutting contour of the workpiece part to be cut out is determined, followed by the defining of at least one starting-cut point and/or one cut-away point for the cutting tool on the cutting contour of the workpiece part to be cut out. A computer-implemented method and a beam cutting device is also disclosed.

Abstract: The disclosure provides a method for fast reconfiguration of power supply grid in tens of milliseconds after power grid failure. The master station of fast reconfiguration of power grid concentrates the network status information from the client stations at transformer substations or power plants, and compares it with the built-in control strategy table which deals with possible faults. When an expected power gird disconnection fault is detected, the pre-start switch-on instruction is sent to the client stations with multiple breakers which can reconnect the grid. When the fault is cleared, the client stations shall identify the fault clearing time according to the local information, and send the instruction of synchronous switch-on to the corresponding local breakers which can reconnect the separated grids.

Abstract: Manufacturing of a shoe or a portion of a shoe is enhanced by automated placement of shoe parts. For example, a part-recognition system analyzes an image of a shoe part to identify the part and determine a location of the part. Once the part is identified and located, the part can be manipulated in an automated manner.

Abstract: A method operates an electric energy storage that is provided for an electric consumption unit, wherein the electric consumption unit is additionally coupled to an electric power grid. The method is characterized in that the control device performs the following steps of a) providing different operation logics for controlling the power flow as a function of the state of charge and of a total unit load, b) observing a status signal that is signaling the present and/or the next supply condition of the grid, c) selecting one of the operation logics as an active operation logic depending on a current value of the status signal, and d) operating the power converter according to the active operation logic.

Abstract: Provided is a method of determining a power curve, which specifies a correlation between wind speed and a power output of a first turbine. Wind speed is calculated based on a measurement correlation, specifies a correlation between the rotor behavior and the wind speed, derived from rotor behavior. The measurement correlation is trained using a second turbine of identical construction having a sensor. While the second turbine is operated at varying wind speeds, the sensor repeatedly records and assigns a wind speed to a simultaneously recorded rotor behavior of the second turbine to produce the measurement correlation. The power curve is produced by repeatedly and simultaneously recording a power output of the first turbine and an associated wind speed while operating the first turbine at varying wind speeds. The wind speed is calculated from rotor behavior of the first turbine based on the measurement correlation trained using the second turbine.

Abstract: A building management system includes a communications interface connected to HVAC devices, a device identifier configured to identify the HVAC devices, a fault detector configured to detect a fault condition in the identified devices, and a causal relationship template retriever configured to retrieve a fault causation template of system parameters specific to the fault condition. The building management system further includes a status requestor configured to retrieve operating data from the identified devices and a user interface generator. The user interface generator is configured to populate the system parameters of the fault causation template with the retrieved operating data and transmit a signal to display a user interface with the populated fault causation template on a display screen.

Abstract: Simulation of process control environments, including dynamic properties, with a modified first-order Taylor series expansion. By using more linear calculations, a physical dynamic property is approximated in less time and with fewer computing resources. By adjusting the approximation to introduce curvature, a physical dynamic property is represented over a wider range than with basic linear series expansions. A comparison to a basic linear first-order series expansion identifies conditions when a rigorous update of a dynamic property is needed.