DocumentCode :
642980
Title :
Fractional control of precision modular servo setup for better limit cycle suppression
Author :
Kesarkar, Ameya Anil ; Selvaganesan, N.
Author_Institution :
Dept. of Avionics, Indian Inst. of Space Sci. & Technol. (IIST), Thiruvananthapuram, India
fYear :
2013
fDate :
28-30 Aug. 2013
Firstpage :
467
Lastpage :
471
Abstract :
In this paper, we report an interesting superiority of fractional order controllers over conventional order controllers. It is found that the fractional order proportional-integral controllers (PIα and [PI]α) designed for precision modular servo experimental setup to meet given loop shaping requirements outperform the correspondingly designed integer order PID in limit cycle suppression. More precisely, a pretty significant reduction in the limit cycle amplitude is observed with PIα and [PI]α as compared to the normal (integer order) PID in the real time closed loop system response.
Keywords :
PI control; closed loop systems; control system synthesis; servomechanisms; three-term control; closed loop system response; fractional order controller; integer order PID; limit cycle amplitude; limit cycle suppression; loop shaping requirement; precision modular servo setup; proportional-integral controller; Aerospace electronics; Fractional calculus; Limit-cycles; Servomotors; Transfer functions; Fractional Controller; Limit Cycle; Modular Servo; Oustaloup Approximation; Separable Nonlinearity;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control Applications (CCA), 2013 IEEE International Conference on
Conference_Location :
Hyderabad
ISSN :
1085-1992
Type :
conf
DOI :
10.1109/CCA.2013.6662793
Filename :
6662793
Link To Document :
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