Electric boost of turbine engine output power and power control system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01C-023/00
G01C-019/06
B64C-027/00
출원번호
US-0462722
(2012-05-02)
등록번호
US-8543262
(2013-09-24)
발명자
/ 주소
Gehrke, Jens
Mirmobin, Parsa
Anghel, Cristian
Beatty, Gordon
출원인 / 주소
Honeywell International, Inc
대리인 / 주소
Shimokaji & Assoc., PC
인용정보
피인용 횟수 :
3인용 특허 :
2
초록▼
The mechanical output power of a turbine engine can be electrically boosted by using a power control system which may include a power source, an electric machine, a prime mover coupled to the electric machine, and a power control module coupled to the power source and the electric machine. The power
The mechanical output power of a turbine engine can be electrically boosted by using a power control system which may include a power source, an electric machine, a prime mover coupled to the electric machine, and a power control module coupled to the power source and the electric machine. The power control module may be configured to operate the electric machine between a motoring mode driving a mechanical load and a generator mode supplying power to an electrical load at speeds normally associated with generating modes only.
대표청구항▼
1. A power control system, comprising: a power source;an electric machine;an electrical load coupled to the electric machine;a prime mover coupled to the electric machine;a mechanical load coupled to the prime mover; anda power control module coupled to the power source and the electric machine, whe
1. A power control system, comprising: a power source;an electric machine;an electrical load coupled to the electric machine;a prime mover coupled to the electric machine;a mechanical load coupled to the prime mover; anda power control module coupled to the power source and the electric machine, whereinthe power control module is configured to operate the electric machine between: a generating mode supplying power to the electrical load, according to a power control strategy defined by equations comprising: φag=φfa+φsa Eq. (1):where φag is a flux in air-gap, φfa is a flux produced by a rotor in a stator windings of the electric machine and φsa is a flux caused by a stator current Ia Eag=Efa+Esa Eq. (2):where Eag is a voltage induced by φag, Efa is a voltage induced by φfa and Esa is a voltage drop in inductance of an armature in the electric machine, and Va=Eag+(Ra+(jωLa)Ia Eq. (3):where Va is the terminal voltage, Ra is the armature resistance, ω=angular speed, j is a complex operator, Ls is synchronous reactance anda motoring mode driving the mechanical load. 2. The power control system of claim 1 wherein the prime mover is a turbo-shaft engine. 3. The power control system of claim 1 wherein the electrical load is a traction wheel system. 4. The power control system of claim 1 wherein the mechanical load is a rotary propeller system. 5. The power control system of claim 4 wherein the rotary propeller system includes rotary wings. 6. The power control system of claim 5 wherein the power control module is configured to provide torque at a speed corresponding to the generating mode and drive the rotary propeller system. 7. The power control system of claim 4 wherein one or more traction motors coupled to traction wheels are coupled to the power control module and wherein the power control module is configured to drive the traction wheels during the generating mode. 8. The power control system of claim 1 wherein the motoring mode is operated by controlling and increasing both an excitation current level and a stator current level in the electric machine. 9. The power control system of claim 1 wherein the power control module is configured to also operate the electric machine in a starting mode. 10. The power control system of claim 1 wherein the electric machine is configured to operate in the motoring mode in a generating speed range defined by a vector diagram where a stator current (Ia) is placed at a lagging angle (α) rotating clockwise around a q-axis with respect to a voltage (Efa) induced by a flux (φfa) produced by a rotor in stator windings of the electric machine. 11. A method of controlling power in a hybrid vehicle that includes a traction wheel system and a rotary propeller system, comprising: operating an electric machine, coupled to the traction wheel system and the rotary propeller system, in a generating mode to drive the traction wheel system according to a power control strategy defined by equations comprising: φag=φfa+φsa Eq. (1):where φag is a flux in air-gap, φfa is a flux produced by a rotor in a stator windings of the electric machine and φsa is a flux caused by a stator current Ia Eag=Efa+Esa Eq. (2):where Eag is a voltage induced by φag, Efa is a voltage induced by φfa and Esa is a voltage drop in inductance of an armature in the electric machine, and Va=Eag+(Ra+(jωLa)Ia Eq. (3):where Va is the terminal voltage, Ra is the armature resistance, ω=angular speed, j is a complex operator, Ls is synchronous reactance; andoperating the electric machine in a motoring mode providing increased transient power to drive the rotary propeller system according to the power control strategy, wherein the stator current (Ia) is placed at a lagging angle (α) with respect to the voltage (Efa). 12. The method of claim 11 wherein the air-gap flux (φag) is unchanged while reducing the terminal voltage. 13. The method of claim 11 wherein the terminal voltage (Va) during the motoring mode is less than the terminal voltage (Va) during the generating mode. 14. The method of claim 11 wherein the operation of the electric machine in the motoring mode produces a reluctance torque added to an interaction torque to drive the rotary propeller system. 15. A hybrid vehicle, comprising: a body;a traction wheel system coupled to the body;a rotary propeller system coupled to the body;a prime mover coupled to the rotary propeller system;an electric machine coupled to the prime mover;a power controller coupled to the electric machine and the traction wheel system, wherein the power controller is configured operate the electric machine between: a generating mode driving the traction wheel system, according to a power control strategy defined by equations comprising: φag=φfa+φsa Eq. (1):where φag is a flux in air-gap, φfa is a flux produced by a rotor in a stator windings of the electric machine and φsa is a flux caused by a stator current Ia Eag=Efa+Esa Eq. (2):where Eag is a voltage induced by φag, Efa is a voltage induced by φfa and Esa is a voltage drop in inductance of an armature in the electric machine, and Va=Eag+(Ra+(jωLa)Ia Eq. (3):where Va is the terminal voltage, Ra is the armature resistance, ω=angular speed, j is a complex operator, Ls is synchronous reactance anda motoring mode driving the rotary propeller system, wherein the motoring mode produces a higher torque from the prime mover than the generating mode. 16. The hybrid vehicle of claim 15 wherein the power controller is further configured to operate the electric machine in a starting mode to drive the prime mover. 17. The hybrid vehicle of claim 15 wherein operation of the electric machine in the motoring mode provides a reluctance torque produced by the electric machine added to an interaction torque. 18. The hybrid vehicle of claim 15 wherein the traction wheel system is electrically driven during the generating mode. 19. The hybrid vehicle of claim 15 further comprising a power source coupled to the power controller, wherein the power controller is configured to provide recharging power back to the power source.
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이 특허에 인용된 특허 (2)
Reynolds Richard W. (Rockford IL), Integrated drive generator system with direct motor drive prime mover starting.
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