Abstract: A control device includes a mechanical system for moving a mechanical slide. The control device further includes a first electric drive configured to receive a position target value and to drive the mechanical system to move the mechanical slide to the position target value. The control device also includes a second electric drive configured to receive the same position target value and to drive the mechanical system to move the mechanical slide to the position target value. The two electric drives are provided and configured to jointly and simultaneously drive the mechanical system and, upon the other electric drive failing, to drive the mechanical system alone and, upon their own failure, not to obstruct the mechanical system from then being driven only by the other electric drive.

Abstract: An energy supply network has a bus line with a line impedance for energy distribution. The energy supply network also includes a number of power-electronic converters having a respective commutation capacitor wherein the storage capacity thereof is selected in such a way that a controlling of the associated power-electronic converter is guaranteed during operation of the energy supply network and an excess of voltage is managed during a commutation. At least one energy accumulator is provided, which can be connected selectively to the bus line by controlling a switch device via a computer unit, wherein the storage capacity of the energy accumulator is substantially greater than the storage capacity of a respective commutation capacitor.

Abstract: A DC voltage switch includes a semiconductor-based electronically controllable switching device, a sensor provided upstream of the switching device for determining the DC voltage bus-side voltage level, a sensor provided downstream of the switching device for determining the DC voltage branch-side voltage level, a current sensor for determining current level and direction, a control device designed such that the direction and level of the current are determined, the flow of current is interrupted by the switching device when a first threshold value of the current level is exceeded, and when the first threshold value of the current level is exceeded in the reverse direction: the DC voltage bus-side voltage level is compared with the DC voltage branch-side voltage level, and the switching device is switched on upon a voltage difference being less than a voltage difference value.

Abstract: An energy supply network has a bus line with a line impedance for energy distribution. The energy supply network also includes a number of power-electronic converters having a respective commutation capacitor wherein the storage capacity thereof is selected in such a way that a controlling of the associated power-electronic converter is guaranteed during operation of the energy supply network and an excess of voltage is managed during a commutation. At least one energy accumulator is provided, which can be connected selectively to the bus line by controlling a switch device via a computer unit, wherein the storage capacity of the energy accumulator is substantially greater than the storage capacity of a respective commutation capacitor.

Abstract: An energy supply device contains: (a) a supply mechanism for supplying electrical power for a power supply system or for an electrical consumer connected to the power supply system; (b) a control unit for controlling an operation of the supply mechanism in first and second operating modes; (c) an interface configured to receive external control signals and to forward the external control signals that indicate how the supply mechanism works in the first operating mode; and (d) a communication monitoring unit that is coupled to the interface and the control unit and monitors whether external control signals are received by the interface, and, if the interface has not received any external control signals or any valid external control signals over a pre-determined amount of time, to transmit an operating mode control signal to the control unit, which causes it to operate the supply mechanism in the second operating mode.

Abstract: The electric machine includes a rotor and a stator, wherein the stator has stator coils, each with a coil core. The electric machine additionally includes an error-recovery device configured to change a magnetic flux coupling of coil cores with one another by a flux conducting element. The hybrid electric aircraft is a hybrid electric airplane, in particular, and the hybrid electric aircraft has such an electric machine.

Abstract: An energy supply device contains: (a) a supply mechanism for supplying electrical power for a power supply system or for an electrical consumer connected to the power supply system; (b) a control unit for controlling an operation of the supply mechanism in first and second operating modes; (c) an interface configured to receive external control signals and to forward the external control signals that indicate how the supply mechanism works in the first operating mode; and (d) a communication monitoring unit that is coupled to the interface and the control unit and monitors whether external control signals are received by the interface, and, if the interface has not received any external control signals or any valid external control signals over a pre-determined amount of time, to transmit an operating mode control signal to the control unit, which causes it to operate the supply mechanism in the second operating mode.

Abstract: Various embodiments include a power semiconductor circuit comprising: two DC voltage terminals; a half-bridge connected between the DC voltage terminals, the half-bridge including two series-connected switchgear units; an AC voltage terminal associated with the half-bridge; a gate-driver circuit associated with each of the switchgear units; a commutation capacitor parallel to the half-bridge; a module controller; and a meter for determining the current to the AC voltage terminal. Each switchgear unit comprises a respective power semiconductor switch or a plurality of parallel-connected power semiconductor switches. The half-bridge, the commutation capacitor, and the gate-driver circuit are arranged on a common homogeneous circuit carrier.

Abstract: An electrolysis stack for an electyrolyzer is electrically subdivided into a plurality of segments, each segment including a specific number of electrolysis cells. The electrolysis stack further has switches adapted for electrically short circuiting the segments of the electrolysis stack.

Abstract: An electrolysis stack for an electyrolyzer is electrically subdivided into a plurality of segments, each segment including a specific number of electrolysis cells. The electrolysis stack further has switches adapted for electrically short circuiting the segments of the electrolysis stack.

Abstract: An input-side protective circuit for protecting an intermediate circuit of an inverter against overvoltages, wherein the input-side protective circuit includes an upstream element for limiting the voltage of the intermediate circuit connected upstream of the intermediate circuit and which is bridgeable by a mechanical switching device that is controllable such that it opens in a feed-in operation of the inverter when an intermediate circuit voltage is greater than a specified voltage limit. The protective circuit also includes an electronic voltage limiter connected downstream of the upstream element and connected in parallel to the intermediate circuit.

Abstract: A solar inverter comprising a plurality of individual inverters connected in parallel and each having a power unit for converting a field voltage on the input side into a mains voltage on the output side, and having a primary electronic control unit that is configured to perform all primary control functions and control functions that can be associated with the individual inverters.

Abstract: According to the present invention, an analog evaluation circuit, the digitization and the conversion into physical variables are moved from the higher-order control system into the sensor system, and the control system is connected to this new sensor system through a synchronous high-speed transmission system. This serial real-time sensor interface provides the network capability of the transmission system and also permits simpler cabling.