Surge is harmful to compressor, so it must be equipped with control system to avoid surge.
喘振对压缩机的危害极大，为了保证压缩机的正常运行，必须配备控制系统来防止喘振的发生。
2
Even, its control system commonly consists of simulation instrument, can't modify the changing surge curve of compressor in time and can't control nonlinear surge curve preferably.
Aiming at solving surge of centrifugal compressor, this paper analyzes the gas equation of compressor and then put forward the control method to eliminate the surge of the centrifugal compressor.