Dr. Ing. H.c. F. Porsche Aktiengesellschaft

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Florian Mayer

Tim Pfizenmaier

Daniel Spesser

Stefan Endres

Christoph Sessler

An energy supply system has a switch, which in an on state connects first conductors of a first line to second conductors of a second line and in an off state disconnects the first conductors of the first line from the second conductors of the second line. A measurement apparatus determines a difference value characterizing the phase difference between a first AC voltage signal at one first conductor and a second AC voltage signal at one second conductor. A control apparatus outputs a command via a signal transmission apparatus depending on the phase difference value. The first command enables a vehicle connected to the charging station to change the phase position of a fed-in AC voltage signal in the feed-in mode to reduce the phase difference, and the control apparatus enables a first change of state of the switch from the off state to the on state.

Energy supply system

A rectifier arrangement for rectifying an AC voltage into a DC voltage has connections, circuit arrangements, an interconnection apparatus and an intermediate circuit. Each circuit arrangement has first and second circuit arrangement connections, between which a changeover arrangement and a coil are connected in series with the changeover arrangement. The changeover arrangements are interconnected to the intermediate circuit. The interconnection apparatus is designed to enable at least a first configuration and a second configuration. In the first configuration, the circuit arrangements form a first group and a second group, with two connections connected to the circuit arrangements in the first group, but not to the circuit arrangements in the second group, and two connections are connected to the circuit arrangements in the second group, but not to the circuit arrangements in the first group. In the second configuration, at least one of the connections is connected to all circuit arrangements.

Rectifier arrangement with connections, circuit arrangements and an interconnection apparatus that has switches to enable different configurations between the connections and the circuit arrangements

A rectifier arrangement () for rectifying an AC voltage into a DC voltage has connections, circuit arrangements, an interconnection apparatus () and an intermediate circuit (). The connections include first and second connections (). The intermediate circuit () has a first line (), a second line () and at least one capacitor () between the first and second lines (). The circuit arrangements () each have a first circuit arrangement connection (A) and a second circuit arrangement connection (B), between which a changeover arrangement () and a coil () are connected in series. The interconnection apparatus () enables at least: a first configuration in which the first connection () is connected to at least one first circuit arrangement connection (A), and a second configuration in which the first connection () is connected to at least one second circuit arrangement connection (B).

Rectifier arrangement

A compensation device () for compensating for a discharge current has a compensation current generation device (), a potential generation device (), active conductor terminals () and a PE conductor terminal (), which active conductor terminals () have a first active conductor terminal () and a second active conductor terminal (), which potential generation device () is interconnected with the first active conductor terminal () and has a potential generation device terminal (), which potential generation device () is designed to provide a potential at the potential generation device terminal () which at least temporarily differs from the potential at the first active conductor terminal (), and which compensation current generation device () is designed to effect a compensation current (I_COMP) between the potential generation device terminal () and the PE conductor terminal ().

Compensation device for discharge currents

An electric vehicle () has an on-board charger () for charging a high-voltage battery () of the electric vehicle () and a heating element (). The on-board charger () has an intermediate circuit capacitor () in an intermediate circuit ('), and the heating element () is connected electrically to the intermediate circuit (&#x2032;).

Electric vehicle with heating element and on-board charger

A compensation device () for compensating for leakage currents has a differential current measuring device (), a supply network detection device (), a control device (), an amplifier (), a compensation current selection device () and a feed-in device (). The supply network detection device () generates a second signal (V_GRID; V_ES) characterizing the supply network (L, L, L, N) connected to the active conductors () and to supply it to the control device (). The compensation current selection device () feeds in the compensation current (I_COMP) on the basis of a third signal (V_SEL) on at least one of the at least two different active conductors (), and the third signal (V_SEL) is dependent on the second signal (V_GRID; V_ES) to select at least one active conductor () suitable for the connected supply network for the feed-in operation.

Compensation device for compensating for leakage currents

A device for filtering at least one signal has a first magnet core and at least one first coil. The first coil has a first coil connection, a second coil connection, a first coil element, a second coil element and a connecting section. The first coil connection is electrically connected to the second coil connection via the first coil element, the connecting section and the second coil element. The first coil element has a first coil axis and the second coil element has a second coil axis. The first coil axis and second coil axis are arranged parallel to and at a distance from one another. The first magnet core extends both through the first coil element and also through the second coil element.

Device for filtering at least one signal

A compensation apparatus compensates for leakage currents on conductors that include active conductors. The apparats () has a differential current measuring apparatus (), a power supply unit (), a first signal generator (), an output stage () and a supply apparatus (). The differential current measuring apparatus () captures a first signal at a first location of the active conductors and supplies it to the first signal generator (). The first signal characterizes differential current on the active conductors. The first signal generator () generates a second signal to compensate for the differential current from the first signal and supplies this second signal to the output stage (). The output stage () injects a compensation current into at least one of the active conductors via the supply apparatus () on the basis of the second signal.

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Freiberg am Neckar, Germany

Florian Mayer