US 2011/0254493 A1 · METHOD AND ARRANGEMENT IN CONNECTION WITH ELECTRIC DEVICE SYSTEM

Abstract

A method and arrangement in connection with an electric drive system are provided. The electric drive system includes an intermediate circuit with two or more supply units and two or more inverter units connected thereto, and an electric machine having two or more three-phase windings galvanically separated from each other. Two or more inverter units are connected to the three-phase windings. The arrangement also includes first main circuit switches to galvanically separate each supply unit from a supply, second main circuit switches to galvanically separate each supply unit from the intermediate circuit, first intermediate circuit switches to galvanically separate each inverter unit from the intermediate circuit, and second intermediate circuit switches to galvanically separate each inverter unit from the electric machine.

Claims13

Dependent claims

A method in connection with an electric drive system, the electric drive system including:

an intermediate circuit having two or more supply units and two or more inverter units connected thereto;
and
an electric machine having two or more three-phase windings galvanically separated from one another and coupled to two or more inverter units, wherein the supply units and the inverter units are separable units, the method comprising the step of
configuring an electric drive system by separating one or more of the separable units,
wherein the separating of the one or more separable units comprises at least one of galvancially separating the supply units from a supply and the intermediate circuit, and galvanically separating the inverter units from the intermediate circuit and the electric machine.

2 more elements

Dependencies are inferred from the claim text.

Method and arrangement in connection with electric device system

Life of this patent

Method and arrangement in connection with electric device system

Life of this patent

Abstract

Claims13