Patent ID: 9399995
Filing Date: 2016-07-26
CPC Classification: F04D

Claim Text:
1. A compressor system comprising: a guide vane; a compressor configured to compress a fluid flowing from the guide vane; a drive unit connected to the compressor and configured to drive the compressor; a guide flow path connecting the compressor and an external device; a branch flow path branching off from the guide flow path; a flow control valve configured to open and close the branch flow path; a sensor unit configured to measure a current of the drive unit and a pressure of the guide flow path; and a control unit configured to control at least one of the guide vane, the drive unit, and the flow control valve, configured to calculate an operation point of the compressor based on the current of the drive unit and the pressure of the guide flow path, configured to compare the operation point of the compressor with a greater one of a first anti-surge control line determined to be offset from the operation point by a first surge margin and a second anti-surge control line determined to be offset from a surge occurrence line by a second surge margin and configured to control the flow control valve according to the comparison.