Dynamic compressor system and methods of operation

A method of operating a compressor system comprising a compressor, the compressor system receiving a system feed stream and outputting a system outlet stream, the method comprising:

• splitting an outlet stream of the compressor into a recirculation stream and the system outlet stream via a variable flow extractor;
• mixing the recirculation stream into the system feed stream via a variable flow injector to output an inlet stream of the compressor;
• receiving first data indicative of a pressure of the system outlet stream;
• receiving second data indicative of a pressure of the system feed stream;
• receiving third data indicative of a flow rate of the recirculation stream and flow rates of at least one of the system feed stream and the system outlet stream;
• and
• adjusting a flow rate of the recirculation stream via the variable flow extractor and the variable flow injector and a rotational speed of the compressor based on the first data, the second data, and the third data to maintain the pressure of the system outlet stream at a target pressure.

A compressor system comprising:

• a compressor having a compressor inlet that receives a compressor inlet stream and a compressor outlet that outputs a compressor outlet stream;
• a variable flow extractor disposed downstream of the compressor to split the compressor outlet stream into a recirculation stream and a system outlet stream;
• a variable flow injector disposed upstream of the compressor that receives a system feed stream and mix the recirculation stream with the system feed stream to form the compressor inlet stream;
• a variable area choke disposed between, and in fluid communication with, the compressor outlet and the variable flow extractor;
• a variable inlet guide vane disposed between, and in fluid communication with, the compressor inlet and the variable flow injector;
• and
• a controller operatively coupled to the variable flow extractor, the variable flow injector, the variable area choke, and the variable inlet guide vane, the controller configured to:
• receive first data indicative of a pressure of the system outlet stream;
• receive second data indicative of a pressure of the system feed stream;
• receiving third data indicative of a flow rate of the recirculation stream and flow rates of at least one of the system feed stream and the system outlet stream;
• and
• actuate the variable flow extractor, the variable flow injector, the variable area choke, and the variable inlet guide vane based on the first data, the second data, and the third data to maintain the pressure of the system outlet stream within a target range.