Control of compression system with independently actuated inlet guide and/or stator vanes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-019/00
F01D-007/00
F03B-003/00
F01D-017/12
F01B-025/00
F04D-029/56
F01D-017/16
F04D-027/02
출원번호
US-0083056
(2011-04-08)
등록번호
US-8909454
(2014-12-09)
발명자
/ 주소
Minto, Karl Dean
출원인 / 주소
General Electric Company
대리인 / 주소
Hoffman Warnick LLC
인용정보
피인용 횟수 :
1인용 특허 :
8
초록▼
A compression system includes a compressor with adjustable inlet guide vanes (IGVs) and variable stator vanes (VSVs) that are adjustable independently of each other. IGV and VSV control units produce respective IGV and VSV reference commands responsive to respective first and second inputs that may
A compression system includes a compressor with adjustable inlet guide vanes (IGVs) and variable stator vanes (VSVs) that are adjustable independently of each other. IGV and VSV control units produce respective IGV and VSV reference commands responsive to respective first and second inputs that may be responsive to measured properties of the compression system. The second input may be provided by a model of the compressor or of the compression system responsive to measured properties. The second input may particularly be an estimate of a property not directly observable, such as stall margin or efficiency.
대표청구항▼
1. A compression system comprising: a compressor;at least one adjustable inlet guide vane (IGV);at least one variable stator vane (VSV) downstream from the at least one IGV, the at least one VSV being adjustable independently of the at least one IGV and the at least one IGV being adjustable independ
1. A compression system comprising: a compressor;at least one adjustable inlet guide vane (IGV);at least one variable stator vane (VSV) downstream from the at least one IGV, the at least one VSV being adjustable independently of the at least one IGV and the at least one IGV being adjustable independently of the at least one VSV;a compression control system including a controller, the controller including an IGV control unit and a VSV control unit;at least a first device configured to communicate with the compression control system and to provide at least a first compressor property value to the compression control system;at least a second device configured to communicate with the compression control system and to provide at least a second compressor property value to the compression control system, wherein the second compression property value includes an estimated stall margin and an estimated efficiency of the compression system;at least a first summing junction configured to communicate with the IGV control unit, the first summing junction also being configured to communicate with at least one of the first and second devices, and to send, responsive to the at least one of the first and second devices, first output value to the IGV control unit;at least a second summing junction configured to communicate with the VSV control unit, the second summing junction also being configured to communicate with at least one of the first and second devices, and to send, responsive to the at least one of the first and second devices, a second output value to the VSV control unit;responsive to at least one of the first and second devices, IGV position reference command produced by the IGV control unit independently of the VSV control unit;responsive to at least one of the first and second devices, a VSV position reference command produced by the VSV control unit independently of the IGV control unit; anda guide vane positioning system configured to communicate with the controller to produce, responsive to at least the IGV position reference command, an IGV position command, and to produce, responsive to at least the VSV position reference command, a VSV position command. 2. The compression system of claim 1, wherein the first device is configured to measure a first compressor property and to provide to the first summing junction a measured first compressor property value. 3. The compression system of claim 2, wherein the first compressor property is exhaust temperature. 4. The compression system of claim 1, wherein the second device is configured to measure a second compressor property and to provide to the second summing junction a measured second compressor property value. 5. The compression system of claim 1, further comprising a compression system model configured to communicate with at least one of the first and second devices and to produce, responsive to the at least one of the first and second devices, a third output value used by at least one of the IGV control unit and the VSV control unit. 6. The compression system of claim 5, wherein the third output value is an estimated value of a property of the compression system. 7. A compression system control method, the compression system including a compressor, a guide vane positioning system, at least one adjustable inlet guide vane (IGV) responsive to the guide vane positioning system, and at least one variable stator vane (VSV) responsive to the guide vane positioning system, the at least one adjustable IGV being controlled independently of control of the at least one VSV, and the at least one VSV being controlled independently of the at least one IGV, the method comprising: providing an IGV control unit configured to communicate with at least a first device and to receive at least a first compressor property value therefrom wherein the first compressor property value is an adjusted first compressor property value, and the first device is a first summing junction configured to provide, responsive to at least a first compressor reference value, the adjusted first compressor property value to the IGV control unit;producing, by a controller, with the IGV control unit, responsive to at least the first compressor property value and independently of control of the at least one VSV, an IGV position reference command and sending the IGV position reference command to the guide vane positioning system;providing a VSV control unit configured to communicate with at least a second device and to receive at least a second compressor property value therefrom, wherein the second compressor property value includes an estimated stall margin and an estimated efficiency of the compression system wherein the second compressor property value is an adjusted second compressor property value, and the second device is a second summing junction configured to provide, responsive to at least a second compressor reference value, the adjusted second compressor property value to the VSV control unit; andproducing with the VSV control unit, responsive to at least the second compressor property value and independently of control of the at least one IGV, a VSV position reference command and sending the VSV position reference command to the guide vane positioning system. 8. The method of claim 7, further comprising providing a first sensor configured to measure a first compressor property and to provide to the first summing junction a measured first compressor property value. 9. The method of claim 7, further comprising providing a second sensor configured to measure a second compressor property and to provide to the compression control system a measured second compressor property value. 10. The method of claim 7, further comprising providing at least a third sensor configured to measure a respective compressor property and to provide, a respective measured compressor property value, providing a compression system model configured to communicate with the at least a third sensor to produce, responsive to at least a measured third compressor property value, the second compressor property value. 11. A non-transitory computer program product for controlling a compression system, the compression system including at least one compressor, at least one adjustable inlet guide vane (IGV), at least one variable stator vane (VSV), the at least one adjustable IGV being adjustable independently of the at least one VSV, the at least one VSV being adjustable independently of the at least one adjustable IGV, and at least one guide vane positioning system with at least one IGV positioning system configured to change a respective position of the at least one IGV and at least one VSV positioning system configured to change a respective position of the at least one VSV responsive to a computing device of a compression control system in communication with the at least one guide vane positioning system, the computer program product comprising instructions in the form of computer executable program code stored on a non-transitory computer readable storage medium in communication with the computing device, and including: program code for using an IGV control unit to produce an IGV reference command responsive to at least a first device configured to provide a first compressor property value;program code for forming a first summing junction, for producing with the first summing junction, responsive to the first compressor property value provided by the first device, an adjusted first compressor property value, and for sending the adjusted first compressor property value to the IGV control unit;program code for using a VSV control unit to produce a VSV reference command responsive to at least a second device configured to provide a second compressor property value, wherein the second compressor property value includes an estimated stall margin and an estimated efficiency of the compression system;program code for forming a second summing junction, for producing with the second summing junction, responsive to the second compressor property value provided by the second device, an adjusted second compressor property value, and for sending the adjusted second compressor property value to the VSV control unit;program code for producing an IGV position command responsive to the IGV reference command and independently of the VSV control unit, and program code for sending the IGV position command to the at least one IGV positioning system; andprogram code for producing a VSV position command responsive to the VSV reference command and independently of the IGV control unit, and program code for sending the VSV position command to the at least one VSV positioning system. 12. The non-transitory computer program product of claim 11, wherein the second device includes at least one sensor configured to measure a second compressor property and to provide to the compression control system a measured second compressor property value as the second compressor property value. 13. The non-transitory computer program product of claim 12, further comprising program code for forming a compression system model, for producing with the compression system model, responsive to the second compressor property value, an estimated third property value of the compression system, and for sending the estimated third property value to the second summing junction. 14. The non-transitory computer program product of claim 13, wherein the sensor measures at least one of exhaust temperature, pressure, and flow rate.
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