Siemens Aktiengesellschaft

Joerg Lang

Mike Dommaschk

Herbert Gambach

Wolfgang Goblirsch

Dominik Ergin

Martin Pieschel

Joerg Dorn

Ingo Euler

Rodrigo Alonso Alvarez Valenzuela

Quoc-Buu Tu

Frank Schremmer

Andreas Zenkner

Carsten Wittstock

Christian Siegl

Alfred Habermeier

Klaus Wurflinger

Tobias Wieners-Rehrmann

A modular multilevel converter includes a plurality of sub-modules. Each of the sub modules has at least two electronic switching elements, an electrical energy storage device, two galvanic power terminals, an optical communication input () and an optical communication output. A plurality of the sub-modules is connected to a series circuit by way of their communication input and communication output.

Modular multilevel converter

A converter configuration has at least one series circuit with at least two series-connected sub-modules which in each case have at least one switch and are installed in each case at a predefined electrical installation position the converter configuration. The converter configuration further has a central unit connected to the sub-modules to control the sub-modules. The sub-modules in each case have a memory in which an identifier, in particular a serial number, uniquely identifying the respective sub-module is stored. The sub-modules in each case have a control device which can forward the stored identifier to the central unit via a communication connection connecting the respective sub-module and the central unit.

Converter arrangement and method for the operation thereof

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

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Stadtsteinach, Germany

Joerg Lang