DocumentCode :
3352958
Title :
Robust controller design for simultaneous control of throttle pressure and megawatt output in a power plant unit
Author :
Zhao, Haipeng ; Li, Wei ; Taft, Cyrus ; Bentsman, Joseph
Author_Institution :
Dept. of Mech. & Ind. Eng., Illinois Univ., Urbana, IL, USA
Volume :
1
fYear :
1999
fDate :
1999
Firstpage :
802
Abstract :
This paper presents an application of H and μ-synthesis controller design methods to a coal-fired power generation unit and compares the closed loop performance and robustness of H and μ-synthesis control laws with those of an H2 control law. All three controller synthesis procedures are applied to a two-input two-output plant model which has time delay, differential part, colored noise output disturbance and sensor noise disturbance. Application of the procedures to the model shows that when the shape of the closed loop control signals of all three designs Is closely matched, in the low frequency range the μ-synthesis and H control laws have robustness much better than that of H2 control law, while providing adequate robustness in the high frequency range. H control law gives the best performance, and H2-the worst of the three designs, exhibiting the largest overshoot. The balancing procedure permits significant reduction of the order of the controllers without degradation in performance and robustness. The comparative evaluation of three designs shows that in power plant control problem H and μ-synthesis designs provide much more consistent and convenient performance/robustness trade-off than H2 design
Keywords :
H control; power station control; robust control; steam power stations; μ-synthesis controller; H controller design; balancing procedure; coal-fired power generation unit; colored noise output disturbance; megawatt output; overshoot; power plant unit; robust controller design; sensor noise disturbance; throttle pressure; time delay; two-input two-output plant model; Colored noise; Delay effects; Design methodology; Frequency; Low-frequency noise; Noise robustness; Power generation; Robust control; Shape control; Signal synthesis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control Applications, 1999. Proceedings of the 1999 IEEE International Conference on
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-5446-X
Type :
conf
DOI :
10.1109/CCA.1999.807764
Filename :
807764
Link To Document :
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