A generalized PID error governing scheme for SMART/SBLI control

Marina Tharayil, Andrew G Alleyne

Research output: Contribution to journalArticlepeer-review


This paper presents the control strategy used in a novel concept termed Smart Mesoflaps for Aeroelastic Recirculation Transpiration (SMART) aimed at controlling shock/boundary-layer interactions (SBLI) in supersonic jet inlets. A basic PID controller used initially effectively meets the performance requirements. However, this sometimes results in actuation saturation, which can be very damaging to the SMART hardware. Therefore, a generalized error governing scheme for PID controllers is developed to compensate for actuator saturations. This method can be generalized to any stable process controlled by a PID, and has advantages over traditional anti-windup controllers. The PID error governing method is experimentally applied to a benchtop SMART subsystem and is shown to be successful at preventing excessive control efforts.

Original languageEnglish (US)
Pages (from-to)346-351
Number of pages6
JournalProceedings of the American Control Conference
StatePublished - 2002

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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