Abstract: A work station for monitoring and control of an industrial process includes a human machine interface unit for presenting the industrial process in process graphics for an operator. The interface unit is communicatively and operatively connectable to an industrial process, and the work station is provided with a shortcut navigator for coupling a key of a physical keyboard to a process graphic or entity of a process graphic. The shortcut navigator includes a presenter, which is adapted to present a virtual keyboard in the process graphic, and an assigner, which is adapted to assign a shortcut to the currently presented process graphic or entity of the process graphic. The shortcut couples a specific key of the physical keyboard to the presented process graphic, or to the process graphic of the entity, respectively. A method, system, and computer program for monitoring and controlling an industrial process is also provided.

Abstract: An apparatus includes a converter having an AC side and a DC side, a switch adapted to be connected to a transmission line on a first side and connected to a load on a second side connected to the AC side, an energy storage device, connected to the DC side. In a first operating mode, the switch is closed, such that an energy storage current flows to/from the energy storage device to charge/discharge the energy storage device, respectively. In a second operating mode, the switch is open, preventing current from flowing from the transmission line to the converter, and the energy storage device supplies a direct current which is converted to an alternating current by the converter. In the first operating mode, the apparatus is configured such that power transfer on the transmission line corresponds to a surge impedance loading of the transmission line, by affecting the energy storage current.

Abstract: A gapped core leg for a shunt reactor, comprising magnetic core elements separated by spacers cast directly between the core elements. Accordingly, a rigid core leg construction is achieved.

Abstract: An exemplary Multi-Terminal High Voltage Direct Current (MTDC) system includes at least three terminals, where each terminal including a Voltage Source Converter (VSC) controlled by a VSC controller. A method for controlling the MTDC system includes providing a converter schedule including at least one of a desired power flow value and a DC voltage; determining, by a MTDC master controller, a present state of the MTDC system including a dynamic topology of the MTDC system; determining, by the MTDC master controller, based on the present state of the MTDC system, based on the schedule and based on MTDC system constraints, VSC controller parameters including droop settings for local control by the VSC controllers; and transmitting the VSC controller parameters to the VSC controllers.

Abstract: A component feeder includes a distributor for distributing components from a bulk storage on a pick surface, and a retaining wall preventing the components from escaping the pick surface. The retaining wall is flexible such that it deforms when a force is applied on it, and it assumes its original shape when the force is no longer applied. The flexible retaining wall allows a robot gripper to push the retaining wall aside when picking a component close to the retaining wall.

Abstract: A rotor for an electrical machine including a plurality of pole sections with adjacent poles within each of the pole sections being distanced by a first uniform pole pitch. Adjacent poles belonging to different pole sections are distanced by a second (smaller) pole pitch at one end of each pole section, and by a third (larger) pole pitch at the other end of each pole section. Alternatively, a corresponding adjustment of coil pitches can be done in a stator of an electrical machine.

Abstract: A power distribution system has a plurality of reactive power resources including capacitor banks and distributed energy resources connected to branches of the power distribution system. Power loss is reduced in the distribution system by determining discrete switch states for the capacitor banks and continuous set points for the distributed energy resources, so that the reactive power provided by the reactive power resources reduces power loss while optionally correcting voltage violations in the power distribution system when the capacitor banks are set in accordance with the respective discrete switch states and the distributed energy resources are operated at the respective continuous set points. The range of values for the continuous set points is constrained based on maximum and minimum reactive power limits for each distributed energy resource under consideration.

Abstract: In a fiber-optic current sensor, a 22.5° Faraday rotator, which is part of the sensing fiber coil, determines the working point of the sensor. The coil is operated with substantially linearly polarized light or incoherent substantially left and right circularly polarized light waves. In one arrangement, a polarization beam splitter generates two optical signals that vary in anti-phase with changing current. A signal processor determines the current from the two anti-phase signals. Appropriately detuned and oriented fiber-optic half-wave or quarter-wave retarders before the fiber coil are used to reduce or cancel the adverse effects of temperature and bend-induced birefringence on the measurement signal. Moreover, the temperature may be derived from the difference in the bias of the anti-phase signals and may be used to cancel temperature effects in the signal processor.

Abstract: A method for notifying at least a first condition in an industrial system by way of a monitoring system in order to draw the attention of an operator monitoring the industrial system to the at least one condition. The method includes displaying the first condition in a first portion of a display screen of the monitoring system, determining by eye tracking an area where a user focuses on the display screen, the area where the user focuses differing from the first portion, and alerting the user of the first condition in order to allow the user to be notified of the first condition in the industrial system. A monitoring system is also presented herein.

Abstract: In one aspect of the teachings herein, demand responsive loads are selected for involvement in a given DR event using an advantageous approach to selection that is based on using a mathematical network model to evaluate power loss in a power distribution network as a function of different combinations of demand responsive load selections and corresponding load reduction values. The mathematical network model comprises a mathematical representation of the power distribution network as a multi-phase unbalanced distribution network, including mathematical representations of the physical components in the power distribution network and the connecting relationships of those components.

Abstract: Disclosed is a control system for a melting process in an electric arc furnace for melting a metallic material that minimizes desired process properties such as the melting time or the total power consumption of the melting process. The system includes a processing unit adapted for receiving or collecting measured data of at least one process variable, determining the current state of the process, performing an optimization of the melting process, determining a process input based on the result of the optimization, and controlling the melting process with the process input. A method is also presented herein.

Abstract: The present invention relates to an AC/DC converter station for interconnection of a DC transmission line and an AC network, the AC/DC converter station including an AC/DC converter and a control system configured to control the AC/DC converter. The AC/DC converter station comprises a capacitor connected in series between the AC/DC converter and the AC network, and a voltage measurement device arranged to measure the voltage across the capacitor. The AC/DC converter further comprises a control system connected to the voltage measurement device and arranged to receive, from the voltage measurement device, a signal indicative of a measured voltage. The control system is arranged to perform the control of the AC/DC converter in dependence of the signal received from the voltage measurement device. The invention further relates to a method of operating an AC/DC converter station.

Abstract: A method for detecting an open current transformer in an electrical power system includes measuring for a voltage value on a secondary side of a current transformer. The method continues with observing the voltage value for a predetermined waveform and initiating corrective action in the electrical power system upon detection of the predetermined waveform.

Abstract: A method and device for generating a set of graphical objects to be displayed by using OPC UA (Unified Architecture) specification. The method includes indicating, by using OPC UA nodes, graphical objects to be displayed, the graphical objects representing physical components of a monitored process. Further, the method includes indicating, by using OPC UA references, how an indicated graphical object should be interconnected to another indicated graphical object when displayed. Next, the respective OPC UA node is associated with a corresponding predetermined graphical object, the set of graphical objects is generated from the associations and the individual graphical objects of the set is interconnected in accordance with the indicated interconnections. Finally, the generated set of graphical objects is displayed.

Abstract: Among other things, one or more techniques and/or systems are provided for developing a timeline chronicling events pertaining to an industrial asset. Data is received from a plurality of assets, processed (e.g., to reduce duplicative and/or redundant data), and organized chronologically for presentation in a timeline. The data is further grouped and/or prioritized to display some portions of the data more prominently relative to other portions of the data in the timeline (e.g., which may be hidden). Grouping rules and/or prioritization rules for grouping and/or prioritizing the data may be a function of user interaction with the timeline and/or a function of a machine learning algorithm which may be configured to identify patterns in how users interact with the timeline based upon, among other things, a role the user plays relative to the industrial asset and/or an operating state of the industrial asset.

Abstract: A system and method are disclosed for observing a change of mass inside a grinding unit as a part of a grinding process with a storing unit. The change of mass is derived from a mass balance for the grinding unit and a mass balance for the storing unit.

Abstract: A hybrid distribution transformer is provided that includes an electromagnetic transformer and a voltage source converter that is operable to reduce fluctuation in the output voltage of the hybrid distribution transformer in the event of an increase or decrease in the input voltage.

Abstract: Reconfigurable power systems and converters and operating methods therefor are disclosed. Reconfigurable power systems may include a DC power source, an electrical energy storage device, an AC power grid connection, and a power converter configured to selectively couple two or more of the DC power source, the electrical energy storage device, and the AC power grid connection.

Abstract: A wireless communication device for a wireless network employing a wireless time division communication structure, where the wireless communication device includes a wireless transmitter, a wireless receiver and an access control unit, which is configured to order the wireless transmitter to transmit, in a contention interval, a priority setting of a wireless communication device competing for resources, where the priority setting is transmitted as a signal having a frequency representing the priority setting, order the wireless receiver to receive, in the contention interval, priority settings of other competing wireless communication devices as signals having frequencies representing these priority settings, compare the transmitted priority setting with the received priority settings and seize a following data interval if the transmitted priority setting is higher than the received priority settings.

Abstract: A power generation system includes at least one generator that generates a medium voltage direct current that has a positive DC voltage output and a negative DC voltage output. The system also provides a medium voltage DC (MVDC) cable system with a positive pole cable and a negative pole cable, wherein the positive pole cable is connected to the positive DC voltage output and the negative pole cable is connected to the negative DC voltage output. A substation is connected to the MVDC cable system and includes at least one DC/DC step-up converter to step-up the medium voltage direct current to a high voltage direct current.