The sample period can also be related to the derivative gain Td. Astrom
and Wittenmark (1984) suggest that the sample period should be between
1/10 and 1/2 of Td. In connection with the Ziegler-Nichols rules,
this implies that Ts should approximately equal 1-5 percent of the
ultimate period Tu.
Regards, Jan Jantzen
Technical University of Denmark | Tel +45 4525 3561 (direct)
Att: Jan Jantzen | Fax +45 4588 1295
Dept. of Automation, Bldg. 326 | Jantzen@iau.dtu.dk
DK-2800 Lyngby, DENMARK | http://www.iau.dtu.dk/~jj
On Thu, 20 Feb 1997, Ali Khalaf wrote:
> What is the required sampling rate required for a fuzzy logic
> controller. I am mainly concerned with the application of fuzzy
> controller in power system stabilizers. Also what effect does varying
> sampling rate have ?