Abstract
This chapter addresses melding together the controllers of two separate compressor booster systems: the dynamic—centrifugal compressor and the positive displacement—reciprocating compressor. The supervisory controller implements the operators’ selection for Primary and Secondary compressor systems unless a problem develops. The four-cylinder compressor provided eight load steps, each step representing 12.5 percent of the total throughput. The 1,500 horsepower motor-driven reciprocating compressor operates at a constant 880 rpm. The supervisory control system functions as a central control system. In the “compressor-auto-mode” position the controller initiates the start sequence as a function of a permissive from the supervisory controller, and gas pressure. The centrifugal compressor is controlled by the plant distributed control system and the supervisory control.
Published Version
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