Direct and exact methods for the synthesis of discrete-time proportional-integral-derivative controllers
This study presents a new set of formulae for the design of discrete proportional-integral-derivative (PID) controllers under requirements on steady-state performance and robustness specifications, such as phase and the gain margins, as well as the gain crossover frequency. The proposed technique ha...
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| Format: | Journal Article |
| Published: |
The Institution of Engineering and Technology
2013
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/20231 |
| Summary: | This study presents a new set of formulae for the design of discrete proportional-integral-derivative (PID) controllers under requirements on steady-state performance and robustness specifications, such as phase and the gain margins, as well as the gain crossover frequency. The proposed technique has the advantage of avoiding trial-and-error procedures or approximations connected to an a posteriori discretisation. This method can also be implemented as a graphical design procedure in the Nyquist plane. The plot of suitable regions can be used to check a priori if the problem leads to feasible values of the PID parameters. |
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