141_1_EE141Spring2011

141_1_EE141Spring2011 - EE141 - Principles of Feedback...

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EE141 - Principles of Feedback Control Spring 2011 Paulo Tabuada Electrical Engineering Department University of California at Los Angeles
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What is control engineering? What is control engineering?
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What is control engineering? What is control engineering? It is the “art” of modifying the dynamic behavior of a system in order to make it work (better).
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What is control engineering? What is control engineering? It is the “art” of modifying the dynamic behavior of a system in order to make it work (better). What do I mean by “dynamic behavior”? What do I mean by “system”? What do I mean by “make it work”?
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Examples Fantail mechanisms provide a very early example of feedback control. In 1745 a patent was filed by Edmund Lee, a British black- smith, describing the fantail method for rotating the mill’s cap towards the wind direction.
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Examples Fantail mechanisms provide a very early example of feedback control. In 1745 a patent was filed by Edmund Lee, a British black- smith, describing the fantail method for rotating the mill’s cap towards the wind direction. Objective: Maximize the use of eolian energy. System: Windmill. Dynamics: Orientation of the sails’ axis of rotation.
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Examples Fantail mechanisms provide a very early example of feedback control. In 1745 a patent was filed by Edmund Lee, a British black- smith, describing the fantail method for rotating the mill’s cap towards the wind direction. Objective: Maximize the use of eolian energy. System: Windmill. Dynamics: Orientation of the sails’ axis of rotation. Sense Compute Act
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Examples Highway congestion control provides another example of feedback control. Objective: Avoid congestion. System: Highway. Dynamics: dx dt = C in - C out where x is the number of cars in the highway.
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Examples Highway congestion control provides another example of feedback control. Objective: Avoid congestion. System: Highway.
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This note was uploaded on 05/21/2011 for the course EE 141 taught by Professor Balakrishnan during the Spring '07 term at UCLA.

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141_1_EE141Spring2011 - EE141 - Principles of Feedback...

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