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STABILITY ANALYSIS AND DESIGN OF PRESSURE CONTROL SYSTEM | ||
| Tikrit Journal of Engineering Sciences | ||
| Article 1, Volume 15, Issue 3, 2008, Pages 64-76 PDF (0 K) | ||
| Authors | ||
| Aziz Abdul-Karim; Dr. Salam K. Hassan; Dr. Duraid Fadhel Ahmed | ||
| Abstract | ||
| The performance of pressure control system and stability analysis was studied for different types of controllers. A theoretical model for closed-loop system is developed and dynamic behavior of the control system was studied by introducing a step change in the pressure of the inlet stream. The results show that the theoretical response is faster than the experimental response due to the lags of the control valve and measuring elements. The pressure control system is stable for all conditions and for different control action because the real parts of roots of characteristics equation are negative but the response at PID controller is oscillatory stable. when PID controller used the response is improve due to eliminate the offset and stabilizing effect of derivative allow the proportional gain to be increased and increasing the speed of response compared to proportional and proportional-integral controllers. KEYWORDS: Pressure Control, Stability, PID Control. | ||
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