Positive feedback stabilization of compressor surge

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Abstract

Stable operation of axial and centrifugal compressors is limited towards low mass flows due to the onset of surge. The stable operating region can be enlarged by active control. In this study, we use a control valve which is nominally closed and only opens to stabilize the system around the desired operating point. Hence, only non-negative control values are allowed which complicates the controller design considerably. A novel positive feedback controller is proposed with clear design parameters to obtain a desirable closedloop behavior. The technique has successfully been applied to a compression system model. For arbitrarily large control valve capacities, the system can be stabilized in the entire operating region. Simulations show that the surge point mass flow can be reduced up to 15% for the relatively small control valve to be implemented on the actual installation. Using this efficient control strategy, the stabilized operating point is reached with zero control valve mass flow.
Original languageEnglish
Title of host publicationProceedings of the 38th Conference on Decision and Control, December 7-10, 1999, Phoenix, Arizona
EditorsF. Willems
Place of PublicationNew York
PublisherInstitute of Electrical and Electronics Engineers
Pages3259-3264
ISBN (Print)0-7803-5251-3
DOIs
Publication statusPublished - 1999

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    Willems, F. P. T., Heemels, W. P. M. H., Jager, de, A. G., & Stoorvogel, A. A. (1999). Positive feedback stabilization of compressor surge. In F. Willems (Ed.), Proceedings of the 38th Conference on Decision and Control, December 7-10, 1999, Phoenix, Arizona (pp. 3259-3264). New York: Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/CDC.1999.827773