| 摘要 |
PURPOSE:To reduce the labor to decide a control constant and to improve the control performance with a process controller, by using a compensator to output a manipulated variable for offset of the process feedback value to a process having the self-feedback. CONSTITUTION:An I-PD controller 1 supplies a target value signal (r) and an output signal (y) and outputs an operation signal u1. A compensator 2 supplies the signal (y) and outputs an operation signal u2 for offset of the process feedback value. An adder 3 supplies both signals u1 and u2 and outputs an operation signal (u) to a process. Then, the transmission characteristics H' of the compensator 2 are equivalent to the transmission characteristics of a process feedback part. Thus, it is possible to reduce the labor that decides a control constant and to improve the control performance with a process controller by means of said compensator 2 that offsets the process feedback value.
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