| 摘要 |
PURPOSE:To improve the control performance of a process controller by correcting the coefficient of a function in terms of learning in a normal operation mode in order to increase the degree of approximation of the function in case said function that approximates the process characteristics is contained in a control loop. CONSTITUTION:When a coefficient store device 35 is selected, the value of K1' is reduced less than the previous value and supplied to a function generator 40 and a differentiator 37. While K2' larger than the previous value is supplied to the generator 40 and the differentiator 38 respectively in case a coefficient store device 36 is selected. As a result, the output compensating amounts corresponding to the changes of the K1' and K2'' are given to a transport amount controller 32 as the VN value. At the same time, the generator 40 delivers the Fs value based on new K1' and K2' to a booster gas controller 19. The controller 19 controls a control valve 21 for control of the booster gas amount flowing through a pipeline l2. As a result, the flow rate of powdery substance flowing through a pipeline l3 is varied to cause the change of the value of Wa.
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