Abstract: Research and analysis to high frequency noise suppression system based on the open-loop harmonic injection control algorithm. First introduces the basic principle of high frequency noise suppression system control algorithm, secondly analyses the harmonic injection of key parameters, to achieve reliable harmonic injection, finally through the s real-time control system harmonic analysis and experimental tests verify the effectiveness of the control algorithm. It provides theoretical basis and design guidance for the realization of the high frequency vibration and harmonic automatic compensation control system of compressor.

Key words: Compressor, Open loop harmonic injection, High frequency noise suppression, Specific frequency