大 Design Homogeneity No point reducing one source of errors much below other sources(cost benefit trade-offs) Hence good design makes errors comparable ★ G C. Goodwin-Bode Lecture 1999
G.C. Goodwin - Bode Lecture 1999 Design Homogeneity No point reducing one source of errors much below other sources (cost benefit trade-offs). Hence good design makes errors comparable
大 Final design pHIC lillet ★ Reference: Gregory McMillan, Pub. ISA G C. Goodwin-Bode Lecture 1999
G.C. Goodwin - Bode Lecture 1999 Final Design Reference: Gregory McMillan, Pub. ISA
Noisy flow -8 Result with three tanks 05001000150020002500300035004000 Time(min) alve Imperfections 05001000150020002500300035004000 Time(min) ★ 0200040006000800010000120001400016000 Time(min) G C. Goodwin-Bode Lecture 1999
G.C. Goodwin - Bode Lecture 1999 0 500 1000150020002500300035004000 5 6 7 8 9 10 11 Time (min) p H Noisy Flow pH 0 2000 4000 6000 8000 10000120001400016000 5 6 7 8 9 10 11 Time (min) p H Valve Imperfections 0 500 1000 1500 2000 2500 3000 3500 4000 5 6 7 8 9 10 11 Time (min) p H Result with three tanks
大 x Conclusions from this example Fundamental limits actuators (Nonlinear 1) Contro Algorithms →( nteract)-Nonlinear ensors Physical Layout pla ★ G C. Goodwin-Bode Lecture 1999
G.C. Goodwin - Bode Lecture 1999 Conclusions from this Example Control Algorithms Actuators (Nonlinear !) Sensors (Nonlinear !) Physical Layout of Plant
x 2. Continuous Casting of Steel 三 f ★ G C. Goodwwin-Bode Lecture 1999
G.C. Goodwin - Bode Lecture 1999 2. Continuous Casting of Steel