An extension of tuning relations after symmetrical optimum method for PI and PID controllers
✍ Scribed by Stefan Preitl; Radu-Emil Precup
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 176 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0005-1098
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✦ Synopsis
The paper presents relations for PI and PID controller tuning based on a generalization of the relations after symmetrical optimum (SO) method, introduced by Kessler (Regelungstechnik, 6 (1958), 395}400 and 432}436), for a class of systems speci"c to the "eld of electrical drives. The tuning relations, based on a method developed by Preitl and Precup (Transactions on AC and CS 41( ), (1996) 47}55; 42(56) (1997) 97}105), o!er values for controller parameters in accordance with previously accepted desired performance. In the case of plants with time-invariant parameter k .
, the tuning after the given relations has the advantage of a maximum value of phase margin ( + ). In the case of plants with time-variant k .
, the given relations enable the computation of controller parameters by ful"lling a minimum guaranteed value of the phase margin (
).