Abstract: An electric power system provides a coordinated and controlled intercommunication and operation of power engineering equipment and converters, e.g., rotating AC machines, power electronic converters and transformers as well as power grids in order to enhance electric power produced by renewable facilities. As viewed from the power grid and its stakeholders' perspective, enhanced renewable facilities are more stiff than conventional renewable facilities, and produce power that is as commercially valuable and fungible as electric power produced by traditional plants such as fossil fuel power plants, hydroelectric plants, nuclear plants and the like. xMs and SMs, or more generally yMs, fulfill the demands of stiffness and reduced variability, which have conventionally limited the commercial usefulness of a large scale use of renewables delivering power to a power grid.

Abstract: A system and a method for measuring and determining flatness of a strip (1) of rolled material. Said system is comprising a measuring roll (2) having a cylindrical central structure (41) having a number of measuring devices for force/pressure registration. Said devices is generating measurement output signals (Upi) depending on the contact between the strip and the measuring roll (2), wherein said measurement output signal (Upi) comprises a force component signal (UFi). Said system also comprises a Flatness Determination Unit (56), said unit being arranged for calculating the flatness (&Dgr;&sgr;1) of the strip based exclusively on signals derived from measurement output signal (Upi) values generated by said measuring devices and information about the values of the width and thickness of the strip (1). The system is continuously determining the Wrap Angle (&agr;) from at least one measurement output signal (Upi) and automatically compensating for a changing Wrap Angle (&agr;).

Abstract: A method for non-contact measurement of dimensions such as thickness or diameter and electrical characteristics of an electrically conductive object (6) based on electromagnetic induction and a time-varying magnetic field. A substantially constant current is supplied to at least one transmitter coil (3) such that an electromagnetic field penetrates the object (6). Current to the transmitter coil (3) is cut off and a voltage induced in at least one receiving coil (8) by at least one decaying magnetic field. The voltage in receiving coil (8) is measured from a first time following decay of a magnetic field in the air (T3) until a time when the field has decayed to zero (T4, T5, T6) and the signal is integrated. A value for a physical dimension of the object (6) is calculated from this integral. The method is accurate, undisturbed by surface contamination or object movement, and applicable to different geometric forms including plate, bar or tube.

Abstract: A computer based method of controlling an industrial process, including the steps of measuring the values of at least one process variable (y1, y2), and predicting future deviations of one process variable (y1) with regard to the measured value of said at least one process variable (y1, y2), and providing a control signal (uFB) based on said predictions, and by means of a first control law. The method comprises the further steps of measuring a measurable disturbance (d) in the process, predicting future deviations of said process variable (y1) with regard to said disturbance but without regard to the measured value of said at least one process variable (y1, y2), and providing a control signal (ud) based on said predictions by means of a second control law.

Abstract: A method for handling containers in which containers are stacked using a moveable crane with a travelling part such as a trolley (8) arranged to lift, move and land a container (7) on a stacking target (15) in a stack comprising a least one ground container (1). The method is characterised by the steps of measuring the horizontal position of the stacking target (15), determining the horizontal position of the ground container (1), and comparing the relative positions of stacking target (15) and ground container (1). An overlap is developed from the relative positions of the stacking target (15) and the ground container (1), and compared to predetermined limits. If the overlap is within limits a desired landing position (25) on the stacking target (15) is selected for the container (7). Advantages include automatic stacking, faster stacking, safer stacks and dense packing of stacks in a container terminal.

Abstract: Guide (20) for a loop of a flexible line (40) between a pair of rotatable parts (12, 14) of an industrial robot (10) that rotate relative to one another around an axis (18), whereby the loop includes a pair of strands (42, 44) of the line joined by a bend (46) that extend around axis (18) with their outsides engaged with the respective parts so that the loop is caused to perform a movement around the axis (18) when the parts rotate relative to one another. To reduce wear on the cover of the line and to facilitate replacing the line, it is suggested that, among other things, the engagement consists of a separate groove (22, 32) arranged for each strand (42 respectively 44).

Abstract: The invention relates to a rotating electric machine comprising a stator (4) provided with windings drawn through slots in the stator, and a rotor (1) having a central axis (2) and poles (5, 6) in the form of pole pieces (8, 9) provided with windings and forming solenoids, pole gaps (13) being arranged between the poles. The machine also comprises coil supports (15, 16) in said pole gaps in order to support the solenoid windings (10, 11). It is characterized in that the coil supports (15, 16) are arranged in pairs and that each coil supports (15, 16) is shaped so that it supports only a part of the solenoid windings (10, 11) of the two adjacent poles (5, 6).

Abstract: A method and system are disclosed for storing, retrieving and otherwise handling two and/or three dimensional image data forming a picture or image. The picture is defined by a plurality of levels, each level including a plurality of subpicture areas corresponding to a different level of image data resolution relative to image data resolution levels corresponding to subpicture areas in other levels. The method and system include selecting a subpicture element having image data for inclusion in the picture and identifying a subpicture area in which the subpicture element may be placed. The method and system further include placing the image data of the subpicture element in the identified subpicture area.

Abstract: A folding tool for automatic roll folding comprises a first member (2) which is fixed to a manipulator, and a second member (3), which is rotatably connected to the first member (2). The second member (3) includes a first folding roller (4). A spring is disposed to permit a relative movement between the first member (2) and the second member (3), under the action of a force, which is increased by the movement. A method of roller folding by means of a folding tool, which includes a first member (2) fixed to a manipulator, and a second member (3) which is pivotal relative to the first. The second member is provided with a folding roller and is actuated by a spring force, which is directed away from the first member.

Abstract: A relative calibration system and method for robot workcell calibration is capable of correcting errors between the robot tool center point (TCP) and the work-object frame according to a relative reference, in that a precision path will be created based on this calibrated workcell.

Abstract: An industrial robot with an upper robot arm (1) that comprises a first arm part 2) arranged to rotate at a second arm part (3), whereby a cable set (4) extends through both arm parts whereby a guiding device (6) for the cable set is arranged at the upper robot arm where the guiding device comprises cavities (21, 22) running through it arranged to guide at least one line within it in a sideway direction and to allow the displacement of at least one line within it in a longitudinal direction. The present invention also relates to a guiding device for a cable set for an industrial robot with a rotatable robot arm and to a use of the guiding device for an industrial robot with a rotatable robot arm.

Abstract: An apparatus for converting direct voltage into three-phase alternating voltage and conversely comprises a VSC-converter (8) having a direct voltage intermediate link (9) and at least one phase leg (12, 13). Each current valve (14-17) of the phase legs has at least one semiconductor device of turn-off type and a rectifying member connected in anti-parallel therewith. A transformer (19) has two opposite ends of a first winding (20) thereof connected to an output (21, 22) each of the VSC-converter and a second winding (23) connected to a direct converter having at least three phase legs. Each of the current valves of the direct converter being able to conduct current and block voltage in both directions and to turn on by gate control. The midpoints (27, 27′, 27″) of the phase legs of the direct converters are provided with phase outputs for forming a terminal for the alternating phase voltage between these phase outputs.

Abstract: A method and a device for controlling a process (10), having at least two sub-processes (20, 30), by tracking, processing and correcting variables for the product, the production means and/or any process media throughout the process line. The process flow for the first sub-process (20) is divided into slices, each slice representing a specific volume of process flow. At least some of the measured and sampled variable values are related to its specific slice volume.

Abstract: The invention relates to a process for producing a rotating electric DC machine, where the main pole of the machine and the slots formed in it for the compensating winding are formed or placed in such a way that the slots are moved radially outward from the center of the stator to provide for an optimal increase in rotor diameter. In accordance with the invention, space is provided for the compensating winding to leave the slots in the main pole by making coil ends (4A) on the main coil (4) of the respective main pole tapered in the radially outward direction. In another alternative or complementary embodiment of the invention, additional space is created for the compensating winding where it leaves the slots by angling the coil ends (4A′) of the main coil radially outward.

Abstract: A capacitor element for a power capacitor having a plurality of films of dielectric material forming two adjacent dielectric layers, and also a plurality of electrodes of metal material, two of which are situated between the two adjacent dielectric layers spaced from and beside each other to produce and area which is free from metal material. According to the invention a permanent connection of a dielectric material is arranged in the area and unites the dielectric layers with each other. The invention also relates to a method for producing such a capacitor element, and a power capacitor having such a capacitor element.

Abstract: Device for guiding a cable set arranged at a manipulator equipped with a control device where the cable set forms an external loop/a slack in the transition between a first and a second manipulator part joined by a link including a guiding device that freely surrounds the cable set characterized in that the guiding device can be opened and includes a suspension device so that it can be suspended to rotate freely in the link section between the two manipulator parts.

Abstract: A method, system and computer program product enhance the commercial value of electrical power produced from a wind turbine production facility. Features include the use of a premier power conversion device that provides an alternative source of power for supplementing an output power of the wind turbine generation facility when lull periods for wind speed appear. The invention includes a communications infrastructure and coordination mechanism for establishing a relationship with another power production facility such that when excess electrical power is produced by the wind turbine facility, the excess may be provided to the power grid while the other energy production facility cuts back on its output production by a corresponding amount. A tracking mechanism keeps track of the amount of potential energy that was not expended at the other facility and places this amount in a virtual energy storage account, for the benefit of the wind turbine facility.