Stony Brook University MEC 411 fnukarmanorbu

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MEC 411 Lab #2 Digital PID Speed Control of a Turntable Due 11/12/2012 Group #11 Keunsoo Park Byeong Yo Min 105205785 108101047 Table of Contents I. Abstract 3 II. Introduction 3 A. Introd... uction 3 B. Theory 6 III. Experimental Procedure 12 IV. Experimental Results 14 V. Discussion and Conclusion20 A. Discussion 20 B. Conclusion 23 VI. Citation 24 VII. Appendix 25 A. MATLAB simulation code 25 B. Configure of the proposed digital PID controller 28 2 I. Abstract The objective of this experiment is to implement a digital PID turntable speed control system that satisfies given performance specifications. The PID controller is an industry standard controller due to its simplicity and good performance. It is used to make certain measurable variables reach desirable values by manipulating three terms; Proportional term, Integral term, and Derivative term. Proportional term is the simple term proportional to the system error. Integral term is discovered later as a means of eliminating bias offset. And derivative term is added at last as an anticipatory term based on the derivative. [1] In reality, many electronic controllers are commonly digital PID controllers. The digital PID controller is also called a discrete PID controller. It reads the error, calculates and outputs the control input at a given time interval.[2] In this experiment, the digital PID controller was implemented using LABVIEW software with a Data Acquisition (DAQ) interface. Tuning of the digital PID controller is made by adjusting parameters, and the results obtained experimentally were compared to theoretical results obtained using MATLAB and the experimental results from the previous laboratory investigation. [Show More]

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