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|Title:||PID tuning with exact gain and phase margins|
|Authors:||Wang, Q.-G. |
|Citation:||Wang, Q.-G., Fung, H.-W., Zhang, Y. (1999-07). PID tuning with exact gain and phase margins. ISA Transactions 38 (3) : 243-249. ScholarBank@NUS Repository.|
|Abstract:||In this paper, a simple PID controller design method that achieves user-specified gain and phase margins is proposed. Unlike other existing methods in the same category where assumptions on the process dynamics are made to simplify the non-linear problem encountered in computation, our method can yield exact solution for a general linear process. Since the set of unknowns outnumbers the set of equations in the problem, an extra equation is introduced by relating the closed-loop bandwidth to the process bandwidth. This also leads to a simple solution to the gain and phase margin problem. Simulation examples are included to demonstrate the effectiveness of the method.|
|Source Title:||ISA Transactions|
|Appears in Collections:||Staff Publications|
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