control1 ppt - SOME EXAMPLES OF CONTROL SYSTEMS Liquid...

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SOME EXAMPLES OF CONTROL SYSTEMS Liquid Level Temperature Position Speed
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--------------------- --------------------- --------------------- --------------------- --------------------- -- - Controller Pneumatic valve Inflow Outflow Liquid - level control system
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Controller Pneumatic valve Water tank Float Actual level Desired level Block diagram
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Basic Components of a control system h Plant h Transducer h Controller h Amplifier h Actuator
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Classification of control systems Open Loop / Closed Loop Linear/ Non Linear Time Invariant Parameter / Time Variant Parameter Lumped Parameter / Distributed Parameter Continuous time / Discrete time Analog / Digital
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Systems involved h Electrical h Mechanical h Electromechanical h Hydraulic Pneumatic h Thermal h Chemical h Non - Engineering
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Chapter 2 Mathematical Modelling Integro - differential equations by analogy approach free body diagram approach
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i R = e / R i c = C (de/dt) i L = (1/L) i dt Electrical Systems R L C Voltage (e), Current (i)
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Mechanical Systems M K B velocity ( v) and force ( f ) f K = K v dt f M = M dv/dt f B = Bv
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Force - current analogy C M 1/L K 1/R B
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Electro mechanical example + - R L M K B + f i e S v
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(e s - e b ) - + e s e b i f v
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Equations (e s -e b ) = Ri + L di/dt f = M dv/dt+Bv+K vdt e b = K 2 v f=K 1 i
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input output x y y = K x K
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control1 ppt - SOME EXAMPLES OF CONTROL SYSTEMS Liquid...

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