Synthesis and optimization of transient performances for underdamped second-order linear system based on the switching control strategy
CitationSu, Q., Dimirovski, G. M., & Zhao, J. (2012). Synthesis and optimization of transient performances for underdamped second-order linear system based on the switching control strategy. ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2012 (Volume 1) (pp. 733-740). New York: ASME. http://dx.doi.org/10.1115/ESDA2012-82295
In this paper, the synthesis and optimization problems of the transient performances, such as overshoot and setting time, of the output response with respect to a step signal for an under-damped second-order linear system are studied. The traditional control strategy and the switching control strategy are used, respectively. Our control objective is twofold: Objective 1 is to ensure that the overshoot of the system output does not violate the given safety bound and objective 2 is to ensure that the settling time is smaller than the given allowable time. The obtained results indicate that the switching control strategy has main two evident advantages: firstly, the switching proportional controllers can take advantages of both the quick response and the small overshoot of the output response. Secondly, the switching controller is always available, while the single proportional controller is available in some special cases. Finally, an example of servomotor is given to demonstrate the effectiveness of the proposed method.
SourceASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2012
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