Fixed frequency electrical generation system and corresponding control procedure
AssigneeAirbus France
InventorJean-Louis Lando
Life of this patent
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Abstract
The invention relates to a fixed frequency electrical generation system that can be placed at the variable load engine output, which includes: an initial stage (30), which is a permanent magnet generator that provides energy to said system, making it autonomous, a secondary stage (21,) which is an excitation stage that controls the magnetisation of a third stage, this third stage (24,) which is a main generator, is the electrical energy production power stage.
Claims10
Fixed frequency electrical generation system that can be placed at the variable load engine output, characterised in that it includes:
- an initial stage (30), which is a permanent magnet generator that provides energy to said system, making it autonomous,
- a secondary stage (21), which is an excitation stage that controls the magnetisation of a third stage,
- this third stage (24), which is a main generator, is the electrical energy production power stage,
- in that the rotors (22 and 25) of the secondary stage (21) and the third stage (24) are integrated into a first shaft (27), the stator (26) of the third stage (24) supplies the output voltage (Vsm), in that the rotor (31) of the first stage (30) is integrated into a second shaft (33), in that at least one oil pump of the cooling circuit (34) is integrated into a third shaft (35), and in that these three shafts (27, 33, and 35) are driven by the input shaft (36), which is the engine shaft, using gears (37, 38, 39, and 40).
System according to any of the previous claims, which includes an input shaft (36) that is driven in variable load and that converts the mechanical energy into electrical energy to rectify it in the form of three-phase voltages and currents to the stator (26) of the main stage (24), which are then distributed over an alternating current network.
Dependencies are inferred from the claim text.