2012 METU Lecture 5 Control of Smart Systems - Department of ...

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Control Systems Overview Historical Feedback control (Bode,1945) Theory of Stochastic Processes (Weiner, 1930) Root Locus Theory (Evans, 1948) Modern Control (1950s, Kalman, Bellman, Pontryagin) • Root locus theory remains an important technique today. • Suitable for design and stability analysis. Root locus analysis is a graphical method for examining how the roots of a system change with variation of a certain system parameter, commonly the gain of a feedback system. This is a technique used in the field of control systems developed by Walter R. Evans. 6
Control Systems Overview Root locus approach Assumption The definition of the damping ratio and natural frequency presumes that the overall feedback system is well approximated by a second order system, that is, the system has a dominant pair of poles. Uses • Determine the stability of the system • Design for the damping ratio and natural frequency of a feedback system. • Lag, lead, PI, PD and PID controllers can be designed approximately with this technique. 7
Page 1 and 2: • • • • • • Lecture 1:
Page 3 and 4: Control Technologies for Smart Syst
Page 5: Control Systems Overview Definition
Page 9 and 10: Control System Technology • • M
Page 11 and 12: Open Loop System • • Reference
Page 13 and 14: Open Loop System Reference Input
Page 15 and 16: Error Detector Closed Loop System R
Page 17 and 18: Closed Loop System Sensor The outpu
Page 19 and 20: Closed Loop System The expression S
Page 21 and 22: Elements of Control Systems Respons
Page 29 and 30: Controller Operation Controller pro
Page 31 and 32: Compensated Controllers • Compens
Page 33 and 34: PID Controllers • The PID control
Page 35 and 36: PID Controllers u(t) + P + e(t) +
Page 37 and 38: PID Controllers - Limitations • W
Page 39 and 40: PID Controllers - Limitations & Sol
Page 41 and 42: Design of Control Systems - Process
Page 43 and 44: Design of Control Systems - Digital
Page 45 and 46: Design of Control Systems - Digital
Page 47 and 48: Algorithm Implementation Considerat
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Page 51 and 52: Control System Hardware Implementat
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Control System Hardware Implementat
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Hard Disc Drive Description • Dis
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Hard Disc Drive Description • In
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Hard Disc Drive Description • The
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Design Challenges • The pivot bea
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Computer Hard Disc Drive - Transfer
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Active Suspension Systems - Introdu
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Suspension Systems - Safety and Sta
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Suspension Systems - Currently Avai
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Suspension Systems - Operating Scen
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Suspension Systems - Bose System
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Active Suspension Systems Bose Acti
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Resources Feedback Control of Dynam
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2012 METU Lecture 5 Control of Smart Systems - Department of ...

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