화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2008년 가을 (10/23 ~ 10/24, 부산 BEXCO)
권호 14권 2호, p.2457
발표분야 공정시스템
제목 Implementation of Constrained Optimal Level Control Using a Conventional Proportional-Integral Controller
초록 An analytical design method for a proportional-integral (PI) controller is proposed for the optimal control of the liquid level loop in order to handle important control specifications. The constrained optimal control problem is formulated by using a proper variable transformation and converted into an unconstrained optimization problem to find an optimal PI controller tuning rule. The proposed PI controller minimizes the rate of change of the outlet flow and the deviation of the level subject to two important constraints in the level loop: the maximum allowable rate of change in the outlet flow rate and the maximum allowable deviation of the level. The simulation results show that proposed method can be successfully implemented using a simple PI controller.
저자 Nguyen Viet Ha1, 신준호2, 이문용1
소속 1영남대, 2LG화학
키워드 liquid level control; proportional-integral (PI) controller tuning; sinusoidal response; constraint control; inventory control
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