Among the control methods which have loop transfer recovery ability, such as the LQG/LTR approach, the design of target feedback loop (TFL) is one important step of the procedure for control system design because the performance of the control system designed is limited by its TFL. However in the LQG/LTR approach, the performance in crossing frequency region of TFL designed by Kalman filter or LQ regulator is undesirable, and this results in poor dynamic performance of the control system. In this paper zero placement (ZP) technique is utilized to design TFL for minimum phase plant. The TFL designed by ZP has two advantages over TFL designed by Kalman filter: (1) It has desirable performance in crossing frequency region; (2) Its transfer function approaches to a diagonal matrix at most under the meaning of least square. Obviously if the TFL is recovered well, then the control system has two corresponding features: good dynamic performance and good decoupling performance. Also the ZP/LTR control for a turbofan engine is studied, and simulation results show that the ZP/LTR control system has superior performance to the LQG/LTR control system.
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ASME Turbo Expo 2000: Power for Land, Sea, and Air
May 8–11, 2000
Munich, Germany
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7857-6
PROCEEDINGS PAPER
ZP/LTR Control for Turbofan Engines
Zhengping Feng,
Zhengping Feng
Shanghai Jiaotong University, Shanghai, P.R.China
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Jianguo Sun,
Jianguo Sun
Nanjing University of Aeronautics and Astronautics, Nanjing, P.R.China
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Qiuhong Li
Qiuhong Li
Nanjing University of Aeronautics and Astronautics, Nanjing, P.R.China
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Zhengping Feng
Shanghai Jiaotong University, Shanghai, P.R.China
Jianguo Sun
Nanjing University of Aeronautics and Astronautics, Nanjing, P.R.China
Qiuhong Li
Nanjing University of Aeronautics and Astronautics, Nanjing, P.R.China
Paper No:
2000-GT-0043, V004T04A015; 5 pages
Published Online:
August 4, 2014
Citation
Feng, Z, Sun, J, & Li, Q. "ZP/LTR Control for Turbofan Engines." Proceedings of the ASME Turbo Expo 2000: Power for Land, Sea, and Air. Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education. Munich, Germany. May 8–11, 2000. V004T04A015. ASME. https://doi.org/10.1115/2000-GT-0043
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