Bayerische Motoren Werke Aktiengesellschaft

Roman Hamerski

Erick Maximiliano Haas Rugel

Carsten Riefle

Christoph Sudan

Sergey Kochetov

Christophe Lafaye

Minghua Tang

A capacitor has at least two capacitor units, wherein a first capacitor unit and a second capacitor unit of the at least two capacitor units have opposite polarities.

Capacitor comprising a plurality of capacitor units

A DC link capacitor includes a plurality of wound capacitors, each having a first connection pole and a second connection pole, a first current-tapping element by which the first connection poles are contacted, and a second current-tapping element by which the second connection poles are contacted. First wound capacitors, of the plurality of wound capacitors, are arranged in a first row and oriented such that the first connection poles are arranged on a first side of the DC link capacitor and the second connection poles are arranged on a second side of the DC link capacitor. Second wound capacitors of the plurality of wound capacitors are arranged in a second row, where the first and second rows are arranged parallel to each other in a common plane, and where the second wound capacitors are oriented such that the first connection poles are arranged on the second side of the DC link capacitor and the second connection poles are arranged on the first side of the DC link capacitor.

DC link capacitor

A capacitor assembly has a capacitor, a first terminal, a cooling device and a housing which contains the capacitor. The first terminal has a first heat absorbing part and a first heat dissipating part. The first terminal dissipates heat from a first side of the capacitor to the cooling device via the first heat absorbing part and the first heat dissipating part. The first side of the capacitor faces away from the cooling device.

Electrode cooled capacitor assembly

A power converter including a bridge circuit is provided. The power converter is designed to convert a direct current of a current source into an alternating current and/or an alternating current into a direct current. The bridge circuit includes a first parallel circuit assembly, which is coupled to a higher potential of the current source and which has a plurality of switching elements connected in parallel, a second parallel circuit assembly, which is coupled to a lower potential of the current source and which has a plurality of switching elements connected in parallel, and a plurality of taps, which are each coupled to the first and second parallel circuit assemblies. Each switching element of the first and the second parallel circuit assemblies has two conducting connections and a control connection, which controls the flow of current from one conducting connection to the other conducting connection. The power converter also includes a control device, which is designed in such a way that, when the power converter is operated at partial load, at least one switching element of a parallel circuit assembly is controlled in such a way that said switching element is not switched on during at least one cycle. The switching elements of a parallel circuit assembly are thermally coupled to one another.

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Unterhaching, Germany

Roman Hamerski