[HUSSENNETHER VOLKER] DE

[HUSSENNETHER VOLKER, CHAUDHRY ADNAN, GAMBACH HERBERT, SCHUSTER ROLAND, WESTERWELLER THOMAS] DE

[HUSSENNETHER, Volker, LEGHISSA, Martino, MEINKE, Stefan] Martinistrasse 24 28195 Bremen;Heuchlinger Strasse 6 90482 Nürnberg;Am Gaubach 26 91369 Wiesenthau;Thorner Str. 18 27755 Delmenhorst The invention relates to an electric component (1), particularly an electric inductor (1a), having a ferromagnetic core (2), particularly an iron core (2a), about which a winding (3) formed from an electric superconductor is disposed, wherein the winding (3) is located in an evacuated container (5) and at least one wall (6a) of the container (5) extends between the winding (3) and the core (2) for thermal insulation such that the core (2) is located outside of the container (5), and wherein the winding (3) is cooled with the aid of a coolant. In order to achieve a high iron filling level with low thermal losses, the invention proposes that the container (5) be configured as a single shell and be evacuated, and the winding (3) be equipped with cooling elements (7) for conducting the coolant.

[Sanad Al-Areqi, Adnan Chaudhry, Stefan Hammer, Volker Hussennether] DE Munich A method controls a converter assembly which has a line-commutated converter. The line-commutated converter has an alternating voltage terminal which can be connected via a phase conductor to an alternating voltage network. The converter assembly further has a switch module branch which is arranged serially in the phase conductor and which contains a series circuit of switch modules at each of the terminals of which bipolar voltages can be generated which add up to a branch voltage. A connection voltage to a connection point between the switch module branch and the converter is controlled by adjusting an amplitude of a positive sequence component of the branch voltage. The converter assembly is configured to carry out a control method for controlling the converter assembly.

[Hammer, Stefan, Hussennether, Volker, Halfmann, Ulrich, Siegert, Sascha] Werner-von-Siemens-Straße 1, 80333 München, DE Die Erfindung betrifft eine Stromrichteranordnung (1), die einen netzgeführten Stromrichter (2) umfasst, der einen Wechselspannungsanschluss aufweist, der über wenigstens eine Phasenleitung mit einem Wechselspannungsnetz verbindbar ist, wobei die Stromrichteranordnung ferner wenigstens einen Schaltmodulzweig (31) umfasst, der seriell in der wenigstens einen Phasenleitung angeordnet ist, und der eine Reihenschaltung von Schaltmodulen (341 ,342) umfasst, an deren Anschlüssen jeweils bipolare Spannungen erzeugbar sind, die sich zu einer Zweigspannung summieren. Die Erfindung zeichnet sich dadurch aus, dass in einer Parallelschaltung zum Schaltmodulzweig ein Überbrückungszweig (33) angeordnet ist, in dem wenigstens eine Schaltvorrichtung (37) angeordnet ist, wobei die Schaltvorrichtung antiparallel geschaltete einschaltbare Halbleiterschalter (36, 42) umfasst. Die Erfindung betrifft ferner ein Verfahren zum Anfahren der Stromrichteranordnung. ＜img id="iaf01" file="imgaf001.tif" wi="124" he="89" img-content="drawing" img-format="tif" /＞

[ARMSCHAT CHRISTOPH, DOMMASCHK MIKE, HUSSENNETHER VOLKER, WESTERWELLER THOMAS] DE

[KNAAK, Hans-Joachim, EBNER, Günter, FRIEDRICH, Kurt, WESTERWELLER, Thomas, HUSSENNETHER, Volker, GAMBACH, Herbert] DE,80333 München,Wittelsbacherplatz 2;

[AL-AREQI, Sanad, CHAUDHRY, Adnan, HUSSENNETHER, Volker] Werner-von-Siemens-Straße 180333 München The invention relates to a method for operating a multilevel converter (800) having multiple phase modules (400, 400ʹ, 400ʹʹ) which each have three phase module branches (11, 13, 404; 11ʹ, 13ʹ, 404ʹ; 11ʹʹ, 13ʹʹ, 404ʹʹ). In a first switching position, a switching device (420, 420ʹ, 420ʹʹ) of each phase module (400, 400ʹ, 400ʹʹ) connects an alternating voltage connection (5, 5ʹ, 5ʹʹ) of the phase module (400, 400ʹ, 400ʹʹ) to a first connection point (412, 412ʹ, 412ʹʹ) between a first phase module branch (11, 11ʹ, 11ʹʹ) and a third phase module branch (404, 404ʹ, 404ʹʹ) and, in a second switching position (422), connects the alternating voltage connection (5, 5ʹ, 5ʹʹ) to a second connection point (416, 416ʹ, 416ʹʹ) between the third phase module branch (404, 404ʹ, 404ʹʹ) and a second phase module branch (13, 13ʹ, 13ʹʹ). In the method, circulating currents of the multilevel converter (800) are controlled in accordance with total energy variables (WΣ1, WΣ2, WΣ3) and differential energy variables (WΔ1, WΔ2, WΔ3) of the phase modules (400, 400ʹ, 400ʹʹ) to balance the energy between the phase module branches (11, 11ʹ, 11ʹʹ, 13, 13ʹ, 13ʹʹ, 404, 404ʹ, 404ʹʹ). The invention relates to a method for operating a multilevel converter (800) having multiple phase modules (400, 400ʹ, 400ʹʹ) which each have three phase module branches (11, 13, 404; 11ʹ, 13ʹ, 404ʹ; 11ʹʹ, 13ʹʹ, 404ʹʹ). In a first switching position, a switching device (420, 420ʹ, 420ʹʹ) of each phase module (400, 400ʹ, 400ʹʹ) connects an alternating voltage connection (5, 5ʹ, 5ʹʹ) of the phase module (400, 400ʹ, 400ʹʹ) to a first connection point (412, 412ʹ, 412ʹʹ) between a first phase module branch (11, 11ʹ, 11ʹʹ) and a third phase module branch (404, 404ʹ, 404ʹʹ) and, in a second switching position (422), connects the alternating voltage connection (5, 5ʹ, 5ʹʹ) to a second connection point (416, 416ʹ, 416ʹʹ) between the third phase module branch (404, 404ʹ, 404ʹʹ) and a second phase module branch (13, 13ʹ, 13ʹʹ). In the method, circulating currents of the multilevel converter (800) are controlled in accordance with total energy variables (WΣ1, WΣ2, WΣ3) and differential energy variables (WΔ1, WΔ2, WΔ3) of the phase modules (400, 400ʹ, 400ʹʹ) to balance the energy between the phase module branches (11, 11ʹ, 11ʹʹ, 13, 13ʹ, 13ʹʹ, 404, 404ʹ, 404ʹʹ).

[HERBERT GAMBACH, VOLKER HUSSENNETHER, ROLAND SCHUSTER, THOMAS WESTERWELLER, ADNAN CHAUDHRY] DE München A multilevel power converter has at least one phase module with a plurality of modules (1_1 . . . 1_n; 2_1 . . . 2_n) connected between first and second DC voltage connections. The phase module has a first phase module branch connected to the first DC voltage connection, and a second phase module branch connected to the second DC voltage connection. Each of the modules has at least two electronic switching elements and an electric energy storage unit. A third phase module branch connects the first phase module branch to the second phase module branch. A switching device connects an AC voltage connection of the multilevel power converter to a first connection node between the first phase module branch and the third phase module branch in a first switch position and connects the AC voltage connection to a second connection node between the third phase module branch and the second phase module branch in a second switch position.

[Volker Hussennether, Werner Herkert] DE Munchen The superconducting winding (2) is configured such that it has a band-shaped HTS conductor (4) of the Röbel-conductor type, made of band-shaped HTS individual conductors that are transposed among each other. An armoring band (5) is to be wound to the prefabricated HTS conductor (4), the band not being metallurgically connected to the HTS conductor (4) and being subject to a comparatively larger winding tension (WZ2). The armoring band (5) is wound at a winding tension (WZ2) that is at least 1.5 times, preferably at least 3 times as large as the winding tension (WZ1) of the HTS conductor (4).