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Comparative analysis of discrete derivative implementations in pid controllers.
| Content Provider | CiteSeerX |
|---|---|
| Author | Pivoňka, Petr Schmidt, Michal |
| Abstract | Abstract: In technical practice it shows that the key problem in a PID controller realization is in its derivative part. With an overwhelming majority of compact controllers a continuous transfer function is described in their documentation, even though the implementation is discrete. A naïve replacement of the derivative by first-order difference is unsatisfactory. In order for a PID controller to be practically usable, its derivative action must be filtered. The article discusses multiple ways how the derivative can be implemented in discrete variants of the PID controller. Their respective advantages and pitfalls are compared. One of them, which exhibits responses most similar to the continuous version and is usable in the widest range of sampling periods, is then recommended. Key–Words: PID, derivative, discrete implementation, noise amplification 1 |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Pid Controller Discrete Derivative Implementation Comparative Analysis Na Ve Replacement First-order Difference Multiple Way Continuous Transfer Function Key Problem Discrete Variant Pid Controller Realization Derivative Action Compact Controller Overwhelming Majority Respective Advantage Discrete Implementation Continuous Version Key Word Derivative Part Technical Practice Noise Amplification |
| Content Type | Text |
| Resource Type | Article |
