Title :
Comments on ´Optimal gain for proportional-integral-derivative feedback´ by S.A.K. Al-Assadi and L.A.M. Al-Chalabi
Author :
Fu, Minyue ; Olbrot, Andrzej W. ; Polis, Michael P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wayne State Univ., Detroit, MI, USA
Abstract :
This comment concerns the comparison of tuning parameters for proportional-integral-derivative (PID) controllers proposed in the above paper (ibid., vol.7, no.6, p.16-19, 1987). The commenters focus on the time-delay example and the resulting table contained in the above paper. They remark on some fundamental points regarding PID controllers that have been misunderstood in the above paper as well as in T.B. Kinney (Chem. Eng., p.67, Sept. 1983), which serves as one of its principal references.<>
Keywords :
control system analysis; delays; feedback; three-term control; PID controllers; optimal gain; proportional-integral-derivative feedback; time-delay; tuning parameters; Control systems; Delay effects; Feedback; Optimal control; Pi control; Proportional control; Robust stability; Three-term control;
Journal_Title :
Control Systems Magazine, IEEE
