Abstract: A multi-axes industrial processing machine with a multi-axes electrical drive system and at least two axle drives that have each an axle module and a built-in motor is disclosed. The machine further includes an impedance that is transformer-coupled with a supply module through an annular core. Either the phase lines on the AC side of the supply module or the output lines of the DC side of the supply module as well as an additional winding are wound on the annular core. The impedance is connected in parallel to the additional winding.

Abstract: A power semiconductor module contains a power component and a sensor component. The power component is disposed on a first substrate. The sensor component is electrically and/or mechanically insulated from the power component by being disposed on an individual, separate second substrate. In this manner, disturbances of the sensor system section caused by the power section and its operation can be avoided particularly reliably.

Abstract: A multi-axes industrial processing machine with a multi-axes electrical drive system and at least two axle drives that have each an axle module and a built-in motor is disclosed. The machine further includes an impedance that is transformer-coupled with a supply module through an annular core. Either the phase lines on the AC side of the supply module or the output lines of the DC side of the supply module as well as an additional winding are wound on the annular core. The impedance is connected in parallel to the additional winding.

Abstract: A circuit carrier (2) (printed circuit board 2) has two metallic outer layers (13, 14) and at least one metallic intermediate layer (11, 12). Insulating layers (8, 9) are arranged between the outer layers (13, 14) and the intermediate layer (11, 12). A component (3, 5) to be cooled and a cooling element (6, 7) are arranged on the outer layers (13, 14). The cooling element (6, 7) is thermally coupled to the component (3, 5) to be cooled via a heat conducting path. The heat conducting path runs partly in the intermediate layer (11, 12). Heat is transferred transversely in said path.

Abstract: A method for reduction of natural system oscillations in an electric motor which is operated using a converter with a voltage intermediate circuit, by periodically decoupling the voltage intermediate circuit (UZK) from the supply mains system (N) at times which are synchronized to triggering equipment for the input converter (E), in particular for as long as current is flowing through the mains system input inductor (LK).

Abstract: A system and method for damping of resonant peaks in an electric motor which is operated using a converter with an intermediate voltage circuit, by means of a matched impedance to ground at the motor star point, and a corresponding electric motor is disclosed. In a converter system having an intermediate voltage circuit which operates with a mains system input inductor in the step-up converter mode or has other input-side inductances, there is a risk of natural system oscillations being formed via discharge capacitances in conjunction with motors. If the motor now has an amplitude/frequency response with a pronounced resonant frequency in the region of such natural system oscillations, then there is a risk of higher voltages occurring at the motor star point than in the motor phases.

Abstract: In a converter system having an intermediate voltage circuit which operates with a supply network-side input inductor in the step-converter mode or has other input-side inductances, there is a risk of natural system oscillations being formed via discharge capacitances in conjunction with motors. If the motor now has an amplitude/frequency response with a pronounced resonant frequency in the region of such natural system oscillations, then there is a risk of higher voltages occurring at the motor star point (S) than in the motor phases (I, V, W). This is prevented by the present invention by introducing an impedance (Z), in particular at the input to the motor, in order to damp capacitive discharge currents to ground potential, which are caused by system oscillations (fsys) (excited asymmetrically with respect to ground in the motor phases (U, V, W)) of the converter system (LK, UR, LT, M) in the winding sections.

Abstract: A power semiconductor module contains a power component and a sensor component. The power component is disposed on a first substrate. The sensor component is electrically and/or mechanically insulated from the power component by being disposed on an individual, separate second substrate. In this manner, disturbances of the sensor system section caused by the power section and its operation can be avoided particularly reliably.

Abstract: The invention relates to a frequency converter system having a filter, an input-side inductance, in particular a mains system input inductor, and a converter with an input converter and an inverter for operation of an electrical machine, having a tuned circuit which is formed by at least one input-side inductance and parasitic distributed capacitances in the frequency converter system with undesirable resonant oscillations during operation of the frequency converter system, with a damping device being provided for damping the tuned circuit.

Abstract: In a converter system having a voltage intermediate circuit which operates with a mains system input inductor in the step-up controller mode or has other input-side inductances, there is a risk of natural system oscillations being formed via discharge capacitances in conjunction with motors. If the motor now has an amplitude/frequency response with a pronounced resonant frequency in the region of such natural system oscillations, then there is a risk of higher voltages occurring at the motor star point (S) than on the motor phases (U, V, W). This is prevented by the invention in that materials, particularly capacitive elements such as lossy dielectrics or inductive elements which produce eddy current losses are used for the stator in the motor, such that these materials result in increased losses being produced in the region of system oscillations (fsys), which are stimulated asymmetrically with respect to ground potential, in the converter system (Lk, UR, L, M).

Abstract: A system and method for damping of resonant peaks in an electric motor which is operated using a converter with an intermediate voltage circuit, by means of a matched impedance to ground at the motor star point, and a corresponding electric motor is disclosed. In a converter system having an intermediate voltage circuit which operates with a mains system input inductor in the step-up converter mode or has other input-side inductances, there is a risk of natural system oscillations being formed via discharge capacitances in conjunction with motors. If the motor now has an amplitude/frequency response with a pronounced resonant frequency in the region of such natural system oscillations, then there is a risk of higher voltages occurring at the motor star point than in the motor phases.

Abstract: In a converter system having an intermediate voltage circuit which operates with a supply network-side input inductor in the step-converter mode or has other input-side inductances, there is a risk of natural system oscillations being formed via discharge capacitances in conjunction with motors. If the motor now has an amplitude/frequency response with a pronounced resonant frequency in the region of such natural system oscillations, then there is a risk of higher voltages occurring at the motor star point (S) than in the motor phases (I, V, W). This is prevented by the present invention by introducing an impedance (Z), in particular at the input to the motor, in order to damp capacitive discharge currents to ground potential, which are caused by system oscillations (fsys) (excited asymmetrically with respect to ground in the motor phases (U, V, W)) of the converter system (LK, UR, LT, M) in the winding sections.

Abstract: Reduction of natural system oscillations in an electric motor which is operated using a converter with a voltage intermediate circuit, by periodically decoupling the intermediate circuit from the mains system, and corresponding voltage intermediate-circuit converters. In a converter system having a voltage intermediate circuit, which operates with a mains system input inductor in the step-up controller mode or has some other input-side inductances, there is a risk of natural system oscillations being formed in conjunction with motors, via discharge capacitances. This is prevented by the present invention by periodically decoupling the voltage intermediate circuit (UZK) from the supply mains system (N) at times which are synchronized to triggering equipment for the input converter (E), in particular for as long as current is flowing through the mains system input inductor (LK).

Abstract: A circuit carrier (2) (printed circuit board 2) has two metallic outer layers (13, 14) and at least one metallic intermediate layer (11, 12). Insulating layers (8, 9) are arranged between the outer layers (13, 14) and the intermediate layer (11, 12). A component (3, 5) to be cooled and a cooling element (6, 7) are arranged on the outer layers (13, 14). The cooling element (6, 7) is thermally coupled to the component (3, 5) to be cooled via a heat conducting path. The heat conducting path runs partly in the intermediate layer (11, 12). Heat is transferred transversely in said path.