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

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

Bender Gmbh & Co Kg

Vancom Gmbh & Co. Kg

Tim Pfizenmaier

Daniel Spesser

Florian Mayer

Stefan Endres

Christoph Sessler

Eckhard Broeckmann

Wolfgang Hofheinz

Dietmar Bytzek

Michael Kammer

Frank Mehling

Florian Habel

Stefan Zeltner

Michael Guenther Zeyen

Guenter Uhl

Juergen Hetzler

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 DC filter device includes: a first filter device connection; a second filter device connection; a third filter device connection; a fourth filter device connection; a coil core; at least one first coil arranged on the coil core, the at least one first coil being connected in between the first filter device connection and the third filter device connection; at least one second coil arranged on the coil core, the at least one second coil being connected in between the second filter device connection and the fourth filter device connection; and a third coil arranged on the coil core, the third coil having a first coil connection and a second coil connection. The first coil connection and the second coil connection are connected to one another via a circuit device, which circuit device has a resistor.

DC filter device

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 leakage currents has a differential current measurement device, a first signal generation device, an amplifier and a feeder device. The first signal generation device is designed to generate a first compensation current specification signal (I_COMP_S) suitable for the compensation from the first signal (I_DIFF) from the differential current measurement device by way of analog signal processing and to feed this first compensation current specification signal (I_COMP_S) to the amplifier in analog or digitized form. The amplifier is designed to generate a compensation current (I_COMP) on the basis of the first compensation current specification signal (I_COMP_S), and the feeder device is designed to allow the compensation current to be fed in at at least one of the active conductors.

Compensation device for leakage currents

A monitoring device for monitoring leakage currents at active conductors has a differential current measurement device, a signal generation device and a control device, which differential current measurement device is designed to record a first signal (I_DIFF) characterizing the differential current of the active conductors and to feed the first signal to the control device. The signal generation device is designed to generate at least one second signal (V_GRID) and to feed the second signal to the control device, which at least one second signal (V_GRID) includes information about the phase angle of a signal occurring at one of the active conductors. The control device is designed to generate a third signal (I_LC_RES) on the basis of the first signal (I_DIFF) and of the at least one second signal (V_GRID), which third signal characterizes the resistive leakage current.

Monitoring device for leakage currents

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 method for reducing leakage currents in a protective conductor of an electricity network including a neutral conductor and a phase conductor in addition to the protective conductor. A differential current is determined depending on a phase conductor current in the phase conductor and a neutral conductor current in the neutral conductor. A compensation current is fed into the phase conductor and/or into the neutral conductor. The compensation current compensates for a leakage current caused by the differential current. Also described is a device for carrying out such a method.

Method and device for reducing leakage currents

A rectifier arrangement () for rectifying an AC voltage into a DC voltage has a first connection (), a second connection (), a third connection () and a fourth connection (), which rectifier arrangement () has an intermediate circuit () with a first line (), a second line () and a node point (), which node point () is connected to the first line () via at least one first capacitor () and to the second line () via at least one second capacitor (), which first connection (), second connection () and third connection () are each connected to a star point () via an associated circuit arrangement (), which fourth connection () is likewise connected to the star point (), and which star point () is connected to the node point () via a controllable switch ().

A rectifier assembly () for rectifying an AC voltage into a DC voltage has at least one first terminal (), a second terminal () and an intermediate circuit (). The first terminal () is connected via a circuit () to a neutral point (), and the second terminal () is connected to the neutral point (). The circuit arrangement () has a first branch () and a second branch () connected in parallel with the first branch (). Both branches () comprise a changeover arrangement () and a coil () connected in series with the changeover arrangement. The coil () in the first branch () is on the side of the changeover arrangement () averted from the neutral point (), and the coil () in the second branch () is on the side facing the neutral point ().

Rectifier assembly

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.

Compensation apparatus for leakage currents

A method for controlling a charging apparatus of a vehicle, in particular an electric or hybrid vehicle, wherein the charging apparatus has a charging device including a protection and monitoring device. The vehicle includes a high-voltage on-board power system and an electrical energy storage apparatus connected to the high-voltage on-board power system. The method includes electrically connecting the high-voltage on-board power system to charging connections of an energy supply system by the charging apparatus. The charging connections include a neutral conductor, a protective conductor and at least one phase conductor. A protective conductor resistance is detected between the neutral conductor and the protective conductor by feeding in a test current by the protection and monitoring device. A frequency of the test current is filtered out of the compensation frequency range on a narrowband basis.

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Leonberg, Germany

Tim Pfizenmaier