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A Study on Pressure Control of Pneumatic Regulator using Modified PWM Algorithm  

Kim HyoungSeog (울산대학교 기계 자동차공학과 대학원)
Ahn KyoungKwan (울산대학교 기계 자동차공학부)
Lee ByungRyong (울산대학교 기계 자동차공학부)
Yun SoNam (한국기계연구원)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.8, 2005 , pp. 64-70 More about this Journal
Abstract
The development of an accurate and energy saving pneumatic regulator that may be applied to a variety of practical pressure control applications is described in this paper. A novel modified pulse width modulation(MPWM) valve pulsing algorithm allows the pneumatic regulator to become energy saying system. A comparison between the system response of conventional PWM algorithm and that of the modified PWM(MPWM) algorithm shows that control performance is almost the same, but energy saving is greatly improved by adopting this new MPWM algorithm. The effectiveness of the proposed control algorithm are demonstrated through experiments with various reference trajectories.
Keywords
pneumatic regulator; on/off solenoid valve; pressure control; PID control; PWM;
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