Active Mechanical Vibration Control of Rotary Compressors for Air-conditioning Systems

Recent power electronics and variable-frequency motor drive technologies have been applied to air conditioners to improve efficiency and power density. However, the mechanical vibrations and acoustic noise resulting from the compressor still remain as a serious problem. This paper presents the development and implementation of an online disturbance state-filter for the suppression of multiple unknown and time-varying vibrations of air conditioning systems. The proposed design has a form of the state-filter based on a Luenburger-style closed-loop speed observer. An active vibration decoupling strategy with an estimated disturbance is provided, which manipulates a motor torque command. Since the proposed estimation does not require any additional transducers or hardware for obtaining real-time information upon disturbances, it is suitable for retrofitting industrial air conditioners.

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Cite this article

[IEEE Style]

C. Park, S. Kim, G. Park, J. Seok, "Active Mechanical Vibration Control of Rotary Compressors for Air-conditioning Systems," Journal of Power Electronics, vol. 12, no. 6, pp. 1003-1010, 2012. DOI: 10.6113/JPE.2012.12.6.1003.

[ACM Style]

Cheon-Su Park, SeHwan Kim, Gwi-Geun Park, and Jul-Ki Seok. 2012. Active Mechanical Vibration Control of Rotary Compressors for Air-conditioning Systems. Journal of Power Electronics, 12, 6, (2012), 1003-1010. DOI: 10.6113/JPE.2012.12.6.1003.