Decentralized Control with Identification
نویسنده
چکیده
Control of the interacting multivariable systems can be in the simplest way realized by single input single output PID/PI controllers (so called decentralized control). When model of the process is not a priori known, basic information about system can be obtained by relay autotuner. Controllers tuning is then realized in a few iterations, e.g. by sequential method. This approach may be improved, when an approximation system model is derived. This paper deals with process frequency response identification from relay test by FFT. The procedure is demonstrated on simulation example for a system with two inputs and two outputs.
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