Abstract: A system includes a combustion power plant for generating power and an electrolysis unit for producing hydrogen. The combustion power plant has a combustion chamber for combustion of a fuel and an offgas conduit for leading off hot offgases formed in the combustion of the fuel. The offgas conduit is thermally coupled to the electrolysis unit. A method for operating the system includes burning the fuel in the combustion power plant, forming the hot offgases in the combustion of the fuel, removing the hot offgases through the offgas conduit, feeding the thermal energy of the hot offgases from the offgas conduit to the electrolysis unit, and producing hydrogen in the electrolysis unit by using the thermal energy from the hot offgases.

Abstract: A system includes a combustion power plant for generating power and an electrolysis unit for producing hydrogen. The combustion power plant has a combustion chamber for combustion of a fuel and an offgas conduit for leading off hot offgases formed in the combustion of the fuel. The offgas conduit is thermally coupled to the electrolysis unit. A method for operating the system includes burning the fuel in the combustion power plant, forming the hot offgases in the combustion of the fuel, removing the hot offgases through the offgas conduit, feeding the thermal energy of the hot offgases from the offgas conduit to the electrolysis unit, and producing hydrogen in the electrolysis unit by using the thermal energy from the hot offgases.

Abstract: An electric high-voltage device includes a fluid-tight housing, a high-voltage component arranged in the housing, and an insulating liquid in the housing in order to electrically insulate the high-voltage component. The high-voltage component is a passive current collector which is configured to at least temporarily conduct a current of at least 1 kA. There is also described a power converter assembly with the high-voltage device.

Abstract: A converter assembly includes a converter with converter valves, each having power semiconductor switches. At least one fluid-tight encapsulation housing, in which at least some of the power semiconductor switches are disposed, forms a modular converter unit. The encapsulation housing is at least partially filled with an electrically insulating insulation fluid in order to electrically insulate the power semiconductor switches disposed in the encapsulation housing.

Abstract: A circuit arrangement includes a plurality of switch assemblies connected in series, each provided with a parallel circuit of three assembly components, in which a first assembly component is a semiconductor switch, a second assembly component is a freewheeling diode, and a third assembly component is a surge arrester. The assembly components are disposed one above the other or next to one another as an assembly component stack, the three assembly components of each switch assembly are disposed in the assembly component stack in a consecutive manner. Each two adjacent assembly components are electrically connected to one another by a direct connection. A power converter module and a method for operating a power converter module are also provided.

Abstract: A control system controls a plurality of controllable units with a central control device and further has a plurality of control modules, each of which is assigned to one of the units to be controlled. The central control device is set up to exchange digital data with each control module. The control modules form a connection network, wherein each control module is connected to at least one other control module via a communication line so that data exchange between them is possible. One of the control modules is directly connected to the central control device as the master node of the connection network, and the control modules are set up to form a communication network within the connection network, so that the data exchange between the central control device and each control module can be respectively carried out via an assigned communication path within the communication network.

Abstract: A device for preparing a high-voltage direct current transmission includes a first busbar which is connectable to a plurality of first energy generation or consumer units and a second busbar which is connectable to a plurality of second energy generation or consumer units. A transformer system includes a first primary coil which is connectable to the first busbar, a second primary coil which is connectable to the second busbar, and a secondary coil system which is inductively coupled to the first primary coil and the second primary coil to transform power routed on the first and second busbars to increased AC voltage. A converter system is connected to the secondary coil system to convert the increased AC voltage into DC voltage for the high-voltage direct current transmission. A converter station and an energy providing system are also provided.

Abstract: A circuit arrangement has an even number of semiconductor switches, which are connected in series and contain in each case two load terminals and a control terminal and are associated with one another in pairs. The circuit arrangement also contains, for each semiconductor switch, a driver for actuating the semiconductor switch via the control terminal thereof and, for every two semiconductor switches that form a switch pair, contains a switching power supply which is supplied with energy from an electrical voltage between the two load terminals of a first semiconductor switch of the switch pair and supplies both the driver of the first semiconductor switch and the driver of the second semiconductor switch of the switch pair with energy.

Abstract: A circuit arrangement includes two switching group series circuits of switch assemblies, switch-mode power supply units, and two capacitor bridges connecting the switching group series circuits. Each switch assembly has a parallel circuit of a semiconductor switch and a freewheeling diode as well as a driver for actuating the semiconductor switch. Each switch-mode power supply unit is associated with a switch pair of semiconductor switches and supplies the drivers of both semiconductor switches of the switch pair with energy. Each switch pair is formed by a semiconductor switch of a first switching group series circuit and a semiconductor switch of a second switching group series circuit. A power convertor module having the circuit arrangement is also provided.

Abstract: A circuit arrangement includes a plurality of switch assemblies connected in series, each provided with a parallel circuit of three assembly components, in which a first assembly component is a semiconductor switch, a second assembly component is a freewheeling diode, and a third assembly component is a surge arrester. The assembly components are disposed one above the other or next to one another as an assembly component stack, the three assembly components of each switch assembly are disposed in the assembly component stack in a consecutive manner. Each two adjacent assembly components are electrically connected to one another by a direct connection. A power converter module and a method for operating a power converter module are also provided.

Abstract: A circuit arrangement has an even number of semiconductor switches, which are connected in series and contain in each case two load terminals and a control terminal and are associated with one another in pairs. The circuit arrangement also contains, for each semiconductor switch, a driver for actuating the semiconductor switch via the control terminal thereof and, for every two semiconductor switches that form a switch pair, contains a switching power supply which is supplied with energy from an electrical voltage between the two load terminals of a first semiconductor switch of the switch pair and supplies both the driver of the first semiconductor switch and the driver of the second semiconductor switch of the switch pair with energy.

Abstract: A circuit arrangement includes two switching group series circuits of switch assemblies, switch-mode power supply units, and two capacitor bridges connecting the switching group series circuits. Each switch assembly has a parallel circuit of a semiconductor switch and a freewheeling diode as well as a driver for actuating the semiconductor switch. Each switch-mode power supply unit is associated with a switch pair of semiconductor switches and supplies the drivers of both semiconductor switches of the switch pair with energy. Each switch pair is formed by a semiconductor switch of a first switching group series circuit and a semiconductor switch of a second switching group series circuit. A power convertor module having the circuit arrangement is also provided.

Abstract: A control system controls a plurality of controllable units with a central control device and further has a plurality of control modules, each of which is assigned to one of the units to be controlled. The central control device is set up to exchange digital data with each control module. The control modules form a connection network, wherein each control module is connected to at least one other control module via a communication line so that data exchange between them is possible. One of the control modules is directly connected to the central control device as the master node of the connection network, and the control modules are set up to form a communication network within the connection network, so that the data exchange between the central control device and each control module can be respectively carried out via an assigned communication path within the communication network.

Abstract: A device for preparing a high-voltage direct current transmission includes a first busbar which is connectable to a plurality of first energy generation or consumer units and a second busbar which is connectable to a plurality of second energy generation or consumer units. A transformer system includes a first primary coil which is connectable to the first busbar, a second primary coil which is connectable to the second busbar, and a secondary coil system which is inductively coupled to the first primary coil and the second primary coil to transform power routed on the first and second busbars to increased AC voltage. A converter system is connected to the secondary coil system to convert the increased AC voltage into DC voltage for the high-voltage direct current transmission. A converter station and an energy providing system are also provided.

Abstract: A converter assembly includes a converter with converter valves, each having power semiconductor switches. At least one fluid-tight encapsulation housing, in which at least some of the power semiconductor switches are disposed, forms a modular converter unit. The encapsulation housing is at least partially filled with an electrically insulating insulation fluid in order to electrically insulate the power semiconductor switches disposed in the encapsulation housing.

Abstract: A base frame for a self-erecting marine platform is used in a method for erecting the self-erecting marine platform, which includes initially rigidly anchoring the base frame to the sea floor. Bearing columns of the marine platform are then hydraulically extended, for example, until the columns come into contact with support regions for supporting the marine platform under water. The bearing columns are then rigidly connected to the base frame. The self-erecting marine platform can therefore be used in deeper sea water.