Please use this identifier to cite or link to this item:
|Title:||Performance and gain and phase margins of well-known PID tuning formulas|
|Authors:||Ho, W.K. |
|Citation:||Ho, W.K., Gan, O.P., Tay, E.B., Ang, E.L. (1996). Performance and gain and phase margins of well-known PID tuning formulas. IEEE Transactions on Control Systems Technology 4 (4) : 473-477. ScholarBank@NUS Repository.|
|Abstract:||The performance and robustness of well-known PID formulas for process with deadtime to time constant ratio between 0.1 and 1 are discussed in this paper. The Ziegler-Nichols, Cohen-Coon, and tuning formulas that optimize for load disturbance response (integral absolute error, integral squared error, and integral time-weighted absolute error) give gain margins of about 1.5. The phase margins increase from about 30 to 60° as the process deadtime to time constant ratio increases from 0.1 to 1. Tuning formulas that optimize setpoint response give gain margins of about two and phase margins of about 65°. These formulas mostly make use of the proportional-integral derivative (PID) controller zeros to cancel the process poles. Approximate analytical formulas to compute gain and phase margins of PID control systems are also derived in this paper to facilitate on-line computation which would be particularly useful for implementing adaptive control. © 1996 IEEE.|
|Source Title:||IEEE Transactions on Control Systems Technology|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on May 10, 2018
WEB OF SCIENCETM
checked on Dec 31, 2018
checked on Dec 22, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.