Abb Research Ltd.

Abb Schweiz Ag

Bertil Nygren

Jan Svensson

Falah Hosini

Willy Hermansson

Gunnar Russberg

Alexandre Oudalov

Georgios Demetriades

Adrian Vasile Timbus

Martin Naedele

Lennart Balgard

Gerhard Brosig

Konstantinos Papastergiou

The invention relates to power networks, and in particular to a battery energy source arrangement and voltage source converter system in such network. The battery energy source arrangement includes battery energy storage, having one or more parallel-connected battery strings and a mechanism for connecting a voltage of the battery strings to a load. The battery energy source arrangement further includes battery string voltage adapter devices connected in series with respective ones of the one or more battery strings wherein the battery string voltage adapter devices are designed to handle only a fraction of the voltage handled by the battery strings.

Battery energy source arrangement and voltage source converter system

A power apparatus for a high voltage electrical power system, that includes a voltage source converter and a high voltage dc power source including one or more strings having a plurality of dc power source members connected in series, and switches configured to connect and disconnect the strings, where the switches are solid-state switches, each string is subdivided into a plurality of dc power source units each dc power source unit including a plurality of dc power source members connected in series and each dc power source unit is provided with one of the solid-state switches configured to connect and disconnect the dc power source unit, and that all solid-state switches in the string are arranged so that they are turned on and off simultaneously.

Power apparatus for a high voltage electrical power system

A battery unit arrangement for high voltage applications. The battery unit arrangement includes a battery unit having a battery chassis, and a switching device. The switching device includes switching mechanism for switching the battery chassis between two positions, a first position connecting the battery chassis to a pole of the battery unitand a second position connecting the battery chassis to a zero potential. The invention also relates to a connection and disconnection arrangement and methods for operating such connection and disconnection arrangement.

Battery unit arrangement for high voltage applications, connector and disconnector arrangement and method

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Vasteras, Sweden

Bertil Nygren