| 초록 |
In this paper, we propose a new process identification method for the automatic design of the PID controller. This method can utilize any type of test signal generator such as the controller itself, relay, P controller, pulse or step signal generator because only the controller output and the measured process output are required to identify the process. Even though the proposed identification is simple and does not require any complicated numerical technique it provides better model accuracy compared with previous methods. Also, the autotuned PID controller based on a model identified by this method shows much better control performances than those of previous methods.
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