Blockdiagrams.ppt

Automation Control TheoryBlock Diagrams Presentation outline Block properties Block properties summary Exercises block diagrams Signal-flow graph Exercises Signal-flow graph Answers to additional problems (N) Answers to additional problems (D) Presentation outline Block properties Block properties summary Exercises block diagrams Signal-flow graph Exercises Signal-flow graph Answers to additional problems (N) Answers to additional problems (D) Presentation outline Block properties Block properties summary Exercises block diagrams Signal-flow graph Exercises Signal-flow graph Answers to additional problems (N) Answers to additional problems (D) Normalisation definitions Process ? black box Only one input and one output Output signal changes as a function of the input signal Formula: H = ?Y / ?X (transfer function) Process ? sub processes ? several black boxes Block diagram Why using a block diagram? Blocks draw easier than real physical systems Systems look alike (analogy) Block diagram easier to read Easier to manipulate and calculate Block diagram Block properties Block properties Block properties Block properties Block properties Exercise: change a normal feedback loop into an unified feedback loop; the resulting transfer function should remain the same as previously Exercise: change a normal feedback loop into an unified feedback loop; the resulting transfer function should remain the same as previously Exercise: change a normal feedback loop into an unified feedback loop; the resulting transfer function should remain the same as previously Block properties Presentation outline Block properties Block properties summary Exercises block diagrams Signal-flow graph Exercises Signal-flow graph Answers to additional problems (N) Answers to additional problems (D) Modern Control Systems (Dorf 10th edition) Presentation outline Block properties Block properties summary Exercises block diagrams Signal-flow graph Exerc