Siemens Aktiengesellschaft

Siemens Energy Global Gmbh & Co. Kg

Sebastian Nielebock

Karsten Handt

Markus Pfeifer

Michael Metzger

Andrei Szabo

Martin Hergt

Michael Bernhard Buhl

Stefan Hänsel

Rudolf Sollacher

Marcel Lutze

Matthias Neumeister

Jens Weidauer

Gopal Mondal

Henry Gueldner

Markus Zocher

Jaganath Krishnan

Michael Lager

An energy supply network has a bus line with a line impedance for energy distribution. The energy supply network also includes a number of power-electronic converters having a respective commutation capacitor wherein the storage capacity thereof is selected in such a way that a controlling of the associated power-electronic converter is guaranteed during operation of the energy supply network and an excess of voltage is managed during a commutation. At least one energy accumulator is provided, which can be connected selectively to the bus line by controlling a switch device via a computer unit, wherein the storage capacity of the energy accumulator is substantially greater than the storage capacity of a respective commutation capacitor.

Energy supply network

A resonant DC-DC converter includes an inverter circuit, a rectifier circuit and a transformer unit. The inverter circuit is connected to a first terminal of the transformer unit, and the rectifier circuit is connected to a second terminal of the transformer unit. The first and second terminals are galvanically isolated from one another by a first transformer. The transformer unit is configured to adapt a transformation ratio of the transformer unit. The transformer unit has an energy transmission path which includes an inverter and a second transformer, with an input of the energy transmission path being arranged parallel to a primary side of the first transformer and an output of the energy transmission path being arranged in series with the secondary side of the first transformer.

Resonant DC-DC converter

A DC voltage switch may include: a first node and a second node for series integration into a pole of a DC voltage line; a third node for the other pole of the line; a mechanical switch between the first and second nodes; a pulse-current module in parallel with the switch; four semiconductor switches connected as bridges comprising two series of two semiconductor switches; a pulse-current capacitor in parallel with the two series; and a switchable semiconductor element. The pulse-current module includes three module nodes. Potential points between the semiconductor switches of the two series correspond to the first and second module node and the outer ends of the two series of in each case two of the semiconductor switches are connected in pairs to a fourth module node and a fifth module node and the semiconductor element is between the fifth and third module node.

Apparatus for switching a direct current in a pole of a DC voltage network

Circuit breaker

The present disclosure relates to converter modules. The teachings thereof may be embodied in converter modules for a multi-level energy converter. For example, a method for operating a converter module of a multi-level energy converter by means of a control unit and via a control connection may include: controlling the switching states of one of two converter module connections of the converter module and a switching unit incorporating the control connection. Two series-connected converter module capacitors connected to the switching unit respectively deliver a converter module capacitor voltage. The switching unit switches the converter module capacitor voltage of one of the converter module capacitors or a summed voltage of the series-connected converter module capacitors to the converter module connections, according to the respective switching state of the switching unit.

Switching unit for a converter module for a multi-level energy converter

A method for signaling and controlling in a power grid coupling a plurality of actuators for providing power signals is provided. At a first actuator, a voltage problem is detected, a communication signal is generated based on the detected voltage problem, and the generated communication signal is transmitted over the power grid. At a second actuator, the transmitted communication signal is received, a control action is generated based on the received communication signal and the generated control action is transmitted over the power grid towards the first actuator.

Signaling and controlling a power grid coupling actuators

Growing community of inventors

Forchheim, Germany

Sebastian Nielebock