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Block Diagram Reduction

Block Diagram Reduction. SUBMITTED BY: Mrs. SANDEEP KAUR ASST. PROFESSOR-EEE. Block Diagram reduction. We often represent control systems using block diagrams. A block diagram consists of blocks that represent transfer functions of the different variables of interest.

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Block Diagram Reduction

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  1. Block Diagram Reduction SUBMITTED BY: Mrs. SANDEEP KAUR ASST. PROFESSOR-EEE

  2. Block Diagram reduction • We often represent control systems using block diagrams. A block diagram consists of blocks that represent transfer functions of the different variables of interest. • If a block diagram has many blocks, not all of which are in cascade, then it is useful to have rules for rearranging the diagram such that you end up with only one block.

  3. For example, we would want to transform the following diagram

  4. Block Diagram Transformations • Combining blocks in cascade(series)

  5. 2 (Blocks in Parallel)

  6. 3. Moving a summingpoint behind a block

  7. 4. Moving a pickoff point ahead of a block

  8. 5. Moving a pickoffpoint behind a block

  9. 6. Moving a summingpoint ahead of a block

  10. 7. Eliminating afeedback loop

  11. 8. replacing summing points

  12. 9. Combining summing points

  13. AttentionDon't use this

  14. _ + + + + _ block diagram: reduction example

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  22. block diagram: reduction example

  23. Example

  24. Example

  25. Example

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