Abstract
Surge is one of the two dynamic instabilities that occur in centrifugal compressors and can pose severe safety issues to the compression system. This paper tries to investigate the active surge con...
Highlights
Compressors play a key role in petroleum and energy industry as the heart of gas transformation systems, injection systems for petroleum, and gas fields
The main limiting factor of a centrifugal gas compressor is aerodynamic instability that appears in the form of surge or rotational stall
The passive surge control is a general surge control method (Willems, 1999). This strategy, conducted by defining a surge control line that is chosen at a distance from the surge line, tries to keep the compressor’s equilibrium point to the right side of the surge line by recycling or blowing off the gas compressor
Summary
Compressors play a key role in petroleum and energy industry as the heart of gas transformation systems, injection systems for petroleum, and gas fields. Active surge control is the opposite point of the above-mentioned strategy, since it extends the surge activity area This method was introduced for the first time by Epstein, Williams, and Greitzer (1989) where the compressor was allowed to work in the instability area using some control feedback. In (Sheng, Huang, Zhang, & Huang, 2014b) an adaptive robust controller, using backstepping method, has been presented for surge control, in which the compressor characteristic is identified by a fuzzy system. This controller is robust to unknown, bounded disturbances.
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