IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0833125
(2007-08-02)
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등록번호 |
US-7355367
(2008-04-08)
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발명자
/ 주소 |
- Sarlioglu,Bulent
- Huggett,Colin E.
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출원인 / 주소 |
- Honeywell International, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
6 인용 특허 :
14 |
초록
▼
A system and method is provided for generating AC power using a synchronous reluctance machine (12) or a salient-pole synchronous machine (102) and a power converter (110). The present invention can be used to achieve power production for a synchronous reluctance machine (12), or can be used to achi
A system and method is provided for generating AC power using a synchronous reluctance machine (12) or a salient-pole synchronous machine (102) and a power converter (110). The present invention can be used to achieve power production for a synchronous reluctance machine (12), or can be used to achieve AC power from a traditional salient-pole synchronous machine/starter (102) without dependence upon a rotor current which is subject to failure. In the power generation system, the control system and method can include a power converter (110), controlled by a voltage command and at least one of a measured AC bus (125) current and voltage, and a DC link (120) voltage, for use with a synchronous reluctance machine (102) and a prime mover (116), such that movement of the rotor of the synchronous reluctance machine (102) can be used to produce at least partial AC power generation on the AC bus (125).
대표청구항
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What is claimed is: 1. An apparatus for reluctance power production using a synchronous reluctance machine, said apparatus comprising: an AC bus electrically coupling via an AC bus a synchronous reluctance machine with a power converter, wherein the synchronous reluctance machine is driven by a pri
What is claimed is: 1. An apparatus for reluctance power production using a synchronous reluctance machine, said apparatus comprising: an AC bus electrically coupling via an AC bus a synchronous reluctance machine with a power converter, wherein the synchronous reluctance machine is driven by a prime mover; a first sensor for measuring at least one of a DC link voltage for comparison with a commanded DC link voltage Vdc,com, a second sensor for measuring an AC capacitor voltage for comparison with a commanded AC capacitor voltage vcap, and a third sensor for measuring an AC inductor current; and a controller for controlling said converter for generating reluctance power by reason of different magnetic reluctance between direct and quadrature axes of the driven synchronous reluctance machine using said measured DC link voltage, AC capacitor voltage and AC inductor current. 2. The apparatus for reluctance power production as claimed in claim 1, wherein said synchronous reluctance machine comprises a rotor having a saliency and which rotates when driven by said prime mover, and an armature winding, wherein said armature winding is electrically coupled to said power converter via said AC bus. 3. The apparatus for reluctance power production as claimed in claim 1, further comprising a plurality of wye coupled capacitors for measuring said AC voltage of said AC bus. 4. The apparatus for reluctance power production as claimed in claim 1, further comprising a plurality of series coupled inductors for measuring said AC current of said AC bus. 5. The apparatus for reluctance power production as claimed in claim 1, wherein said controller comprises: a first comparator for comparing said DC link voltage with said commanded DC link voltage Vdc,com to obtain a d axis inverter current command; a second comparator for comparing said AC capacitor voltage with said commanded AC capacitor voltage vcap to obtain a q axis inverter current command; a vector formation block for forming a commanded current Park vector using said d and q axis inverter current commands; a third comparator for comparing said commanded current Park vector with a measured current Park vector to obtain a voltage command Park vector in synchronous reference frame; and a second multiplier for transforming said voltage command Park vector in synchronous reference frame using a rotor angle transformation value to obtain a voltage command Park vector in stationary reference frame for driving said converter to obtain an AC voltage on said AC bus. 6. The apparatus for reluctance power production as claimed in claim 1, wherein said controller comprises: a first comparator for comparing said DC link voltage with said commanded DC link voltage Vdc,com and a first summer for summing the result with a rotor angle value to obtain a rotor angle transformation value; a second comparator for comparing said AC capacitor voltage with said commanded AC capacitor voltage vcap to obtain a u axis inverter current command; a vector formation block for receiving said u axis inverter current command and a v axis inverter current command set to zero and forming a commanded current Park vector; a third comparator for comparing said commanded current Park vector with a measured current Park vector to obtain a voltage command Park vector in synchronous reference frame; and a second multiplier for transforming said voltage command Park vector in synchronous reference frame using said rotor angle transformation value to obtain a voltage command Park vector in stationary reference frame for driving said converter to obtain an AC voltage on said AC bus. 7. The apparatus for reluctance power production as claimed in claim 1, further comprising a rotor sensor for detecting a rotor angle of said synchronous reluctance machine. 8. The apparatus for reluctance power production as claimed in claim 1, wherein a rotor angle of said synchronous reluctance machine is based upon an estimate. 9. An apparatus for reluctance power production using a synchronous reluctance machine, said apparatus comprising: a power converter electrically coupled with said synchronous reluctance machine; a prime mover driving said synchronous reluctance machine; a first sensor measuring a DC link voltage for comparison with a commanded DC link voltage Vdc,com; a second sensor measuring an AC capacitor voltage for comparison with a commanded AC capacitor voltage Vcap; a third sensor measuring an AC inductor current; and a controller generating reluctance power by reason of different magnetic reluctance between direct and quadrature axes of the driven synchronous reluctance machine and the control of said power converter using said measured DC link voltage, AC capacitor voltage and AC inductor current. 10. The apparatus for reluctance power production as claimed in claim 9, wherein said synchronous reluctance machine comprises a rotor having a saliency and which rotates when driven by said prime mover, and an armature winding, wherein said armature winding is electrically coupled to said power converter via said AC bus. 11. The apparatus for reluctance power production as claimed in claim 9, further comprising: a plurality of wye coupled capacitors for measuring said AC voltage of said AC bus; and a plurality of series coupled inductors for measuring said AC current of said AC bus. 12. The apparatus for reluctance power production as claimed in claim 9, wherein said controller comprises: a first comparator for comparing said DC link voltage with said commanded DC link voltage Vdc,com to obtain a d axis inverter current command; a second comparator for comparing said AC capacitor voltage with said commanded AC capacitor voltage vcap to obtain a q axis inverter current command; a vector formation block for forming a commanded current Park vector using said d and q axis inverter current commands; a third comparator for comparing said commanded current Park vector with a measured current Park vector to obtain a voltage command Park vector in synchronous reference frame; and a second multiplier for transforming said voltage command Park vector in synchronous reference frame using a rotor angle transformation value to obtain a voltage command Park vector in stationary reference frame for driving said converter to obtain an AC voltage on said AC bus. 13. The apparatus for reluctance power production as claimed in claim 9, wherein said controller comprises: a first comparator for comparing said DC link voltage with said commanded DC link voltage Vdc,com and a first summer for summing the result with a rotor angle value to obtain a rotor angle transformation value; a second comparator for comparing said AC capacitor voltage with said commanded AC capacitor voltage vcap to obtain a u axis inverter current command; a vector formation block for receiving said u axis inverter current command and a v axis inverter current command set to zero and forming a commanded current Park vector; a third comparator for comparing said commanded current Park vector with a measured current Park vector to obtain a voltage command Park vector in synchronous reference frame; and a second multiplier for transforming said voltage command Park vector in synchronous reference frame using said rotor angle transformation value to obtain a voltage command Park vector in stationary reference frame for driving said converter to obtain an AC voltage on said AC bus. 14. The apparatus for reluctance power production as claimed in claim 13, further comprising a rotor sensor for detection said rotor angle value of said synchronous reluctance machine. 15. The apparatus for reluctance power production as claimed in claim 13, wherein said rotor angle value of said synchronous reluctance machine is determined by an estimate of said rotor angle value. 16. An apparatus for reluctance power production using a salient-pole synchronous machine, said apparatus comprising: a rotor of said salient-pole synchronous machine, said rotor having saliency; a power converter electrically coupled with an armature winding of said salient-pole synchronous machine; a prime mover driving said rotor of said salient-pole synchronous machine; a sensor for detecting a main field flux via direct or indirect means in said salient-pole synchronous machine to detect a loss of rotor field; a position sensor for detecting rotor position of said rotor; and a controller for controlling said power converter to generate reluctance power from said salient-pole synchronous machine when there is a loss of rotor field and rotor rotation is detected using position sensor. 17. The apparatus as claimed in claim 16, further comprising: a first sensor for measuring at least one of a DC link voltage for comparison with a commanded DC link voltage Vdc,com; a second sensor for measuring an AC capacitor voltage for comparison with a commanded AC capacitor voltage vcap; and a third sensor for measuring an AC inductor current. 18. The apparatus as claimed in claim 17, wherein said controller comprises: a first comparator for comparing said DC link voltage with said commanded DC link voltage Vdc,com to obtain a d axis inverter current command; a second comparator for comparing said AC capacitor voltage with said commanded AC capacitor voltage vcap to obtain a q axis inverter current command; a vector formation block for forming a commanded current Park vector using said d and q axis inverter current commands; a third comparator for comparing said commanded current Park vector with a measured current Park vector to obtain a voltage command Park vector in synchronous reference frame; a second multiplier for transforming said voltage command Park vector in synchronous reference frame using a rotor angle transformation value to obtain a voltage command Park vector in stationary reference frame for driving said converter to obtain an AC voltage on said AC bus; a first summer for summing an output of the first comparator with a rotor angle value to obtain a rotor angle transformation value, wherein the vector formation block receives said d axis inverter current command and a v axis inverter current command set to zero to form said commanded current Park vector. 19. The apparatus for reluctance power production as claimed in claim 17, wherein said controller comprises: a first comparator for comparing said DC link voltage with said commanded DC link voltage Vdc,com and a first summer for summing the result with a rotor angle value to obtain a rotor angle transformation value; a second comparator for comparing said AC capacitor voltage with said commanded AC capacitor voltage vcap to obtain a u axis inverter current command; a vector formation block for receiving said u axis inverter current command and a v axis inverter current command set to zero and forming a commanded current Park vector; a third comparator for comparing said commanded current Park vector with a measured current Park vector to obtain a voltage command Park vector in synchronous reference frame; and a second multiplier for transforming said voltage command Park vector in synchronous reference frame using said rotor angle transformation value to obtain a voltage command Park vector in stationary reference frame for driving said converter to obtain an AC voltage on said AC bus. 20. The apparatus as claimed in claim 16, wherein a rotor angle value of said salient-pole synchronous machine is determined by one of a rotor sensor or an estimate of said rotor angle value.
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