Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Andreas Zenkner

Jörg Dorn

Ingo Euler

Martin Pieschel

Mike Dommaschk

Dominik Ergin

Peter Lell

Joerg Dorn

Rodrigo Alonso Alvarez Valenzuela

Quoc-Buu Tu

Herbert Gambach

Daniel Schmitt

Frank Schremmer

Sebastian Semmler

Dominik Schuster

Marcos Pereira

Thomas Kuebel

Carsten Wittstock

Christoph Blösch

Joerg Lang

Dirk Malipaard

Markus Billmann

Mathias Anheuer

Martin Buschendorf

Christoph Bloesch

Andreas Fartuschnja

Klaus Wurflinger

Thomas Kübel

Klemens Kahlen

Günter Sachs

A short-circuit switching device, in particular a bypass switch, includes a semiconductor element with at least one p-n junction and at least one pyrotechnic ignition device. The semiconductor element is or at least can be in a blocking state prior to the ignition of the pyrotechnic ignition device on the basis of the involvement of the p-n junction. After the ignition of the pyrotechnic ignition device, the semiconductor element is at least partially destroyed, namely at least with respect to the at least one p-n junction, and made at least partially conductive independently of the current flow direction by using explosion gas released by the ignition device after an explosion.

Short-circuit switching device including at least one pyrotechnic ignition device

A power converter arrangement with a modular multi-level converter which includes a series circuit of switch modules which each have a plurality of semiconductor switches and an energy source. Some of the switch modules are of a first type and others of the switch modules are of a second type. During operation, a positive switch module voltage, a negative voltage module voltage, or a null voltage is generated at connection terminals of the switch modules of the first type, and a positive switch module voltage or a null voltage can be generated at connection terminals of the switch modules of the second type. The power converter arrangement further contains a support structure having a number of levels, which each have receptacles in which the switch modules are arranged, with both switch modules of the first and second type being arranged in each level of the support structure.

Power converter arrangement with support structure

A multilevel converter contains at least two submodules which are connected in a row. Each of the submodules contains at least two switches and a capacitor and two current-carrying outer module terminals. Accordingly, at least one of the submodules has at least one outer cooling member which acts as a current-carrying outer module terminal.

Multilevel converter

A power semiconductor module includes at least two interconnected power semiconductor units having actuatable power semiconductors, a module housing in which the power semiconductor units are disposed and which has an electrically insulating side wall, and at least one connection bus extended through the side wall and connected to at least one of the power semiconductor units. High explosion resistance and particularly inexpensive production are provided by forming the insulating side wall as a stack of insulating and partial elements constructed as a single piece, in which contact areas of the partial elements contact each other.

Power semiconductor module having layered insulating side walls

The vacuum switch is compact, requires little effort, and provides a reliable current path having a high current-carrying capacity between the terminals of the vacuum switch, particularly at high switch-on speeds. The vacuum switch has a vacuum chamber, in which a vacuum is present and in which a switching contact is arranged. The switching contact includes a fixed contact piece firmly connected to the vacuum chamber and in electrical contact with a fixed contact terminal, and a moving contact piece movably guided relative to the fixed contact piece. The moving contact piece is at a distance to the fixed contact piece in a disconnect position and contacts the latter in a contact position. A drive unit produces a drive movement. A switching mechanism is connected to the drive unit and the moving contact piece and includes a conductor section that is electrically conducting up to the moving contact piece. A connector connects a moving contact terminal electrically to the moving contact piece in the contact position. The connector has a clamping contact, which has an insertion clamping contact piece connected to the conductor section of the switching mechanism and a mating clamping contact piece firmly connected to the vacuum chamber and electrically connected to the moving contact terminal. The insertion clamping contact piece and the mating clamping contact piece are arranged relative to each other such that the insertion clamping contact piece is clamped with the mating clamping contact piece in an electrically conducting manner as a result of the drive movement.

Vacuum switch having fixed rail terminals on both sides

A device converts electrical energy into heat in the field of drive voltage technology and/or high voltage technology. The device contains a brake resistance and at least one controllable brake power semiconductor for controlling the conversion, enabling a rapid and economical transformation of effective power into heat as required. To this end, the brake resistance contains a plurality of individual brake resistances that are each part of a bipolar submodule. The submodules are connected in series, form a submodule series connection, and at least partially contain an energy accumulator respectively connected in parallel to an associated individual brake resistance and a controllable brake power semiconductor, which allows the current flow over the respectively associated individual brake resistance in a brake position, and interrupts the current flow over the brake resistance in a normal operating position.

Converter with distributed brake resistances

An electrical installation has a container which encloses high-voltage components. The electrical installation can be fitted inexpensively and quickly, and at the same time provide sufficient cooling of the high-voltage components. A control room with control elements and/or display elements of the electrical installation and a cool room with a cooling device for at least one of the high-voltage components are disposed in the interior of the container.

Electrical installation having a container

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Obermichelbach, Germany

Andreas Zenkner