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Constrained control of hot air blower system under output delay using globally stable performance-based anti-windup approach

Muhammad Rehan1, Abrar Ahmed2, Naeem Iqbal2 and Keum-Shik Hong1,3,*
The Journal of Mechanical Science and Technology, vol. 24, no. 12, pp.2413-2420, 2010

Abstract : This paper describes the design and implementation of a linear controller with an Anti-Windup Compensator (AWC) for a hot air blower system having output delays, under actuator saturation constraint and noise. Traditional Anti-Windup (AW) schemes for timedelay systems are based on either local stability or global stability with performance restrictions. We modify an existing AWC architecture using a time-delay term in the compensator in order to ensure global stability and performance. It is also shown that the existing Linear Matrix Inequalities (LMIs) based optimization schemes for AWC, which are derived using the decoupled architecture and coprime factorization, can be applied to the modified AWC architecture. This modified delay independent AWC scheme is applied to a hot air blower system and practical results are discussed. This paper aims to support the industrial application of the modified AWC ensuring global stability and performance, by applying it to a hot air blower system under actuator situation and output delay as well as electrical and thermal noises.

Keyword : System identification; PI controller; Anti-windup compensator; Air blower; Output delay

 
 
 
 
 
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