# US 2013/0154357 A1 · Electrical system for an aircraft > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0154357 A1 - Document ID: US20130154357A1 - Status: Published application - Kind: A1 - Application number: 13/718,836 - Filed: 2012-12-18 - Published: 2013-06-20 - Earliest claimed: 2011-12-20 - Assignees: Airbus Operations GmbH - Inventors: Jens Schult; Henning Everth; Fabian Kraus - Web page: https://patentgrep.com/patent/US20130154357A1 ## CPC - B60R 16/03: for supply of electrical power to vehicle subsystems {or for (circuit arrangements for charging batteries H02J7/00)} - H02J 4/00: Circuit arrangements for mains or distribution networks not specified as AC or DC; Circuit arrangements for mains or distribution networks combining AC and DC sections or sub-networks (arrangements using intermediate DC-AC-DC conversion H02J1/002; arrangements using high-voltage DC [HVDC] links H02J3/36) - B64D 2221/00: Electric power distribution systems onboard aircraft - H02J 2105/32: {for aircrafts} - B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT ## Abstract An electrical system for an aircraft is provided. The system comprises an inverter for transforming a first alternating current from an on-board network having a variable frequency into a second alternating current, and at least a first electrical load and at least a second electrical load, which are configured to be operated simultaneously by the second alternating current. ## Claims ### Claim 1 An electrical system for an aircraft, the electrical system comprising: an inverter for transforming a first alternating current from an on-board network having a variable frequency into a second alternating current; and at least a first electrical load and at least a second electrical load, which are operated simultaneously by the second alternating current. ### Claim 2 (depends on 1) The electrical system according to claim 1, further comprising: a first load switch for disconnecting the first electrical load from the inverter; and a second load switch for disconnecting the second electrical load from the inverter. ### Claim 3 (depends on 1) The electrical system according to claim 1, wherein the inverter is a first inverter and the electrical system further comprises: a second inverter; and a collector line that connects the first inverter to the second inverter, wherein the first electrical load and the second electrical load are connectable to the first inverter and the second inverter via the collector line. ### Claim 4 (depends on 3) The electrical system according to claim 3, further comprising: a first collector line switch for disconnecting the first inverter from the collector line; and a second collector line switch for disconnecting the second inverter from the collector line. ### Claim 5 (depends on 3) The electrical system according to claim 3, further comprising: a third collector line switch for disconnecting a first part of the collector line, which is connected to the first inverter, from a second part of the collector line, which is connected to the second inverter, wherein at least the first electrical load is connectable to the first part of the collector line. ### Claim 6 (depends on 3) The electrical system according to claim 3, wherein at least the second electrical load is connectable to the second part of the collector line. ### Claim 7 (depends on 1) The electrical system according to claim 1, further comprising: a control unit that controls the inverter in such a way that an adjustable output frequency is produced for the second alternating current. ### Claim 8 (depends on 7) The electrical system according to claim 7, wherein the control unit controls switches of the electrical system to at least one of open and close the switches. ### Claim 9 (depends on 1) The electrical system according claim 1, wherein the first electrical load comprises a first motor and the second electrical load comprises a second motor. ### Claim 10 (depends on 1) The electrical system according to claim 1, wherein the first electrical load comprises a first conveying device and the second electrical load comprises a second conveying device. ### Claim 11 An aircraft, comprising: a generator that is mechanically coupled with a drive of the aircraft to supply an on-board network of the aircraft with electrical energy; and an electrical system that includes an inverter that transforms a first alternating current from an on-board network having a variable frequency into a second alternating current, and at least a first electrical load and at least a second electrical load that are operable simultaneously by the second alternating current, wherein the electrical system is coupled with the on-board network via the inverter. ### Claim 12 A method for operating an electrical system of an aircraft, comprising: transforming an alternating current from an on-board network having a variable first frequency into a second alternating current having a second frequency; and operating at least one first electrical load and at least one second electrical load with the second alternating current. ### Claim 13 (depends on 12) The method according to claim 12, wherein the at least one first electrical further comprises a first conveying device and the at least one second electrical load further comprises a second conveying device, and the method further comprises: determining a common conveying capacity of the first conveying device and the second conveying device; and operating the at least one first electrical load and the at least one second electrical load in such a way that the common conveying capacity is provided. ### Claim 14 (depends on 13) The method according to claim 13, wherein the at least one first electrical load further comprises a first motor for driving the first conveying device and the at least one second electrical load further comprises a second motor for driving the second conveying device, and the method further comprises: changing a frequency of the second alternating current depending on the common conveying capacity; and switching on the first motor and the second motor depending on the common conveying capacity. ### Claim 15 (depends on 12) The method according to claim 12, the method further comprising: transforming the first alternating current from the on-board network by means of a first inverter; disconnecting the first inverter from the at least one first electrical load and the at least one second electrical load; connecting a second inverter to the at least one first electrical load and the at least one second electrical load; and transforming the first alternating current from the on-board network by means of the second inverter. ### Claim 18 A computer program product, comprising: a non-volatile storage medium readable by a processor and storing instructions for execution by the processor for performing a method comprising: transforming an alternating current from an on-board network having a variable first frequency into a second alternating current having a second frequency; and operating at least one first electrical load and at least one second electrical load with the second alternating current. ### Claim 19 A control unit for an electrical system of an aircraft, which is configured to carry out a method comprising: transforming an alternating current from an on-board network having a variable first frequency into a second alternating current having a second frequency; and operating at least one first electrical load and at least one second electrical load with the second alternating current. ### Claim 20 (depends on 19) The control unit according to claim 19, wherein the at least one first electrical further comprises a first conveying device and the at least one second electrical load further comprises a second conveying device, and the method further comprises: determining a common conveying capacity of the first conveying device and the second conveying device; and operating the at least one first electrical load and the at least one second electrical load in such a way that the common conveying capacity is provided.