A Compressor Surge Control System: Combination Active Surge Control System and Surge Avoidance System
نویسندگان
چکیده
A novel method for combining active surge control system (ASCS) and surge avoidance system (SAS) for a centrifugal compressor is presented. ASCS is a promising method to improve compressor operating area by stabilizing surge. However, this method is not applied yet in industrial compressors. Safety issue is considered in implementing the ASCS. A failure in ASCS may endanger the compressor by entering deep surge as the compressor is allowed to operate in the stabilized surge area. Combination of ASCS and SAS is proposed to improve the safety by utilizing the SAS as a back-up system. SAS is a reliable method in surge control and widely applied in industrial compressors. However, the compressor operating area is reduced by applying the SAS. An ASCS by using piston actuation is used as a case study and performance evaluations of the combined system are done by simulations.
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