controlsProject2Report - I Project Summary Project 2...

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I. Project Summary Project 2 consisted of designing a PID controller to go along with the DC motor model of project 1. The controller had to be implemented so that the overall system could meet the given specifications. The transient and steady- state performances of the system were then analyzed to determine how the system behaved over different time ranges. The sensitivity of the system was then analyzed and compared to that of project 1. It was observed that the system no longer met the –20db peak value. The system was then analyzed to observe it’s performance in rejecting disturbance over different frequency ranges. It was found that the system rejected disturbances at high frequencies. Finally, the system’s noise rejecting capabilities were then analyzed over different frequency ranges. It was concluded that the system rejected noise, like disturbance, at high frequencies. All of these operations were necessary in order to properly analyze the overall performance of the system. II. Introduction Project 1 consisted of the mathematical modeling and analyzing of a DC motor with a load. The mathematical model was used to create a signal flow graph, in order for a transfer function to be derived. The transfer function consisted of the armature voltage as the input variable, and the angular velocity as the output. The transfer function was then plotted in order to analyze it’s behavior. In this project, project 2, we designed a PID controller to meet certain specifications that were given. The project required the use of the Ultimate Gain Method as in Ziegler-Nichols tuning. This method enabled us to design a PID controller that enabled our system to meet the given specifications. The use of the sensitivity function, system disturbance and noise modeling were very important parts of the project. Matlab played a key role in providing supporting materials through graphs and calculations. In this project, the model of the system with the PID controller is analyzed in detail to achieve a great understanding of the overall system’s behavior. This report will explain the
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This note was uploaded on 02/03/2012 for the course EE 3530 taught by Professor Chen during the Fall '07 term at LSU.

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controlsProject2Report - I Project Summary Project 2...

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