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Robust Control of Surge Instability in a Centrifugal Compressor

Journal Name:

  • Journal of Control Engineering and Technology

Publication Year:

  • 2012

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
This paper proposes a robust design scheme for the control of surge phenomenon appearing in a centrifugal compressor. It is known the surge instability in compressor might lead to reduce the operating efficiency and even damage the machinery while both of unstable compressor characteristics and compressor load torque are hard to exactly measure in the practical application. Based on the assumption of local sector nonlinearity for system dynamics, a robust control law is proposed to cover the system nonlinearity and uncertainties while guaranteeing the stability of system equilibrium. This is achieved by using the actuation of the driving torque and closed-couple valve. Numerical simulations are given to demonstrate the success of the proposed robust controller design.
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  • English

REFERENCES

References: 

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Journal of Control Engineering and Technology (JCET)
DOI 10.5963/JCET0201002
JCET Vol.2 No.1 January 2012 PP.11-19 www.ijcet.org ○C World Academic Publishing
19
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