ASSEMBLY OF ACTUATORS AND OF A SYSTEM FOR SUPPLYING ELECTRICAL POWER FROM A NETWORK

• US 20110121651A1
• Filed: 07/21/2009
• Published: 05/26/2011
• Est. Priority Date: 07/23/2008
• Status: Active Grant

• Current Assignee: Safran Electronics & Defense
• Original Assignee: Sagem Defense Securite (Safran SA)
• Inventors: Guillot, Francois, Casimir, Roland, Weibel, Jean-Francois
• Granted Patent: US 8,907,521 B2
• Time in Patent Office: Days
• US Class Current: 307/31
• CPC Class Codes: B64D 41/00 Power installations for auxiliary purposes
• CPC Class Codes: H02J 13/00007 using the power network as support for the transmission
• CPC Class Codes: H02J 2310/44 for aircrafts
• CPC Class Codes: H02J 4/00 Circuit arrangements for mains or distribution networks not specified as ac or dc
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02T 50/50 On board measures aiming to increase energy efficiency
• CPC Class Codes: Y04S 40/121 using the power network as support for the transmission

Abstract

An assembly having actuators and an electricity power supply system. The assembly includes an input unit connecting the actuators to a three-phase AC electricity network and to a control system. The input unit includes a transformation member arranged to transform the AC into DC at high voltage and connected to a bidirectional power line having connected in series therewith at least one protective switch, a communications interface, and at least one of the actuators. The communications interface is arranged and connected to a central unit to exchange signals over the power line with a signal communications interface of at least one of the actuators. The input unit also includes a charger/discharger unit that connects an energy store to the power line.

Claims

1. An assembly comprising actuators and an electricity power supply system for powering the actuators from a three-phase AC electricity network, the system comprising an input unit connecting the actuators to the network and to a control system for the actuators, the input unit having a transformation member that is arranged to transform the three-phase AC into direct current (DC) at high voltage and that is connected to a bidirectional power line in which there are connected in series at least one protective switch, a communications interface and at least one of the actuators, the communications interface being arranged and connected to a central unit that is connected to the control system so as to exchange signals over the power line with a signal communications interface of at least one of the actuators, the input unit also including a charger/discharger unit that connects an energy store to the power line, each actuator including a reversible motor connected to the communications interface to be powered and controlled thereby.

2. The assembly according to claim 1, wherein an inverter is connected in series between the protective switch and the communications interface of the input unit to provide the power line with AC for powering the motor of the actuator.

3. The assembly according to claim 1, wherein an inverter is connected in series between the communications interface of the actuator and the motor.

4. The assembly according to claim 2, wherein the input unit includes a plurality of protective switches and of communications interfaces, the power line being subdivided into a plurality of branches, each connected to one of the actuators, each branch having connected in series therewith one of the protective switches and one of the communications interfaces.

5. The assembly according to claim 1, wherein a protective switch and an inverter are connected in series between the communications interface and the motor of each actuator.

6. The assembly according to claim 5, wherein the power line is connected to the actuators to form a bus.

7. The assembly according to claim 1, wherein the charger/discharger unit is arranged to respond to the level of charge in the energy store to control a member for connecting the power line to an energy dissipater load.

8. The assembly according to claim 1, wherein the transformation member is a PFC.

9. The assembly according to claim 1, wherein the power supply line is at a potential of 540 volts.