IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0937425
(2004-09-10)
|
우선권정보 |
FR-03 50525(2003-09-11) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Oblon, Spivak, McClelland, Maier &
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인용정보 |
피인용 횟수 :
16 인용 특허 :
8 |
초록
▼
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 a
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.
대표청구항
▼
The invention claimed is: 1. 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 st
The invention claimed is: 1. 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). 2. System according to claim 1, in which the rotor (31) of the permanent magnet generator (30) is driven by the shaft of the engine (36), and its stator (32) powers an external control unit (41). 3. System according to claim 2, in which the stator (23 ) of the exciter (21) is powered by variable frequency three-phase currents from a three-phase current inverter (43) of said external control unit (41). 4. System according to claim 3, in which the rotor (25) of the main generator (24) is integrated with the rotor (22 ) of the exciter (21) and is driven by the shaft of the engine ( 36); its rotor windings are interconnected with those of the exciter. 5. 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. 6. System according to any of claims 1 to 4, in which the stator (26) of the main stage (24) is powered by three-phase voltages and the stator (23) of the exciter (21) is short-circuited; the energy absorbed is electrical and the energy generated is mechanical. 7. System according to any of claims 1 to 4, that includes a static converter that allows transferring the energy on the electrical network in a controlled manner. 8. System control procedure according to claim 5, in which the voltage (Vsm) is controlled at the stator of the main stage (24), and that includes two adjustment loops: an excitation current loop; an output voltage loop. 9. System control procedure according to claim 5, in which the frequency of the system is controlled, which includes: an excitation frequency loop; an output frequency loop. 10. Use of the system of the invention according to claim 1, on an aircraft as an electrical generator and/or electrical engine.
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