Advanced control engineering (S.R. Burns, 2001)
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M
Flyballs
Sleeve
Steam
Valve
M M
Inputs |
System |
Outputs |
Boundary
Rudder |
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Position |
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Engines |
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Ship |
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Forward Velocity |
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Wind |
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Velocity |
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Heading |
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Waves |
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Ship Motion |
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Current |
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(roll, pitch, heave) |
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Disturbance |
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Input |
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Control Input |
+ |
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– |
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Controlled Variable |
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Plant |
or |
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Output |
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Summing |
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Point |
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Forward Path |
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Summing |
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Point |
Error |
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Control |
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Output |
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Desired Value + |
Signal |
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Signal |
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• |
Value |
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Controller |
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Plant |
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– |
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Measured Value
Sensor
Feedback Path
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Insulation |
Outside |
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Desired |
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Control |
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Temperature |
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Temperature Potentio- |
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Signal Gas Solenoid |
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Actual |
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meter |
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Valve |
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Room |
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Measured |
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Controller |
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Temperature |
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Gas |
Gas |
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Temperature |
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Fire |
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Heat |
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Flow-rate |
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Heat |
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Loss |
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Input |
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Thermometer |
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Outside
Temperature
Desired
Temperature Potentio-
meter
(°C)
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Gas |
Heat |
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Error |
Control |
Flow-rate Loss |
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Signal |
Signal |
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(m3/s) |
(W) |
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+ (V) |
Controller |
(V) |
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Gas |
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Gas |
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Solenoid |
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Burner |
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(V) – |
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Valve |
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Thermometer
(V)
Insula-
tion Actual Temperature
(°C)
–
Room
+
Heat
Input
(W)