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This paper is to investigate the best PID control structure for controlling the glycerin bleaching process that would improve the bleached glycerin quality. An ideal and alternative PID control structures is analyzed. The controller parameters are adjusted based on Wang's tuning method and compared to Ziegler-Nichols method. The system performance is evaluated in terms of settling time and percent...
Controlling process with lag is not an easy task. The lag can easily cause oscillation that lead to instability of the controller response. The conventional method of controlling this kind of system is not capable of giving satisfactory result. Many delay compensator and predictor methods are introduced to handle system with lag and one of the popular methods is a Smith Predictor. The problem with...
Controlling a process with significant lag is always a challenge task. The response is slow and can cause instability of the controller. In this work the Fuzzy Logic controller is purposed to control the heating stage for glycerin bleaching process. The Fuzzy PD and Fuzzy PI controllers are designed with different sets of membership function and rules. 3, 5 and 7 membership functions with 9, 25 and...
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