Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0019-0578(99)00020-8
Title: PID tuning with exact gain and phase margins
Authors: Wang, Q.-G. 
Fung, H.-W.
Zhang, Y.
Issue Date: Jul-1999
Source: 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. https://doi.org/10.1016/S0019-0578(99)00020-8
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
URI: http://scholarbank.nus.edu.sg/handle/10635/62624
ISSN: 00190578
DOI: 10.1016/S0019-0578(99)00020-8
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