| 摘要 |
PROBLEM TO BE SOLVED: To provide a servo valve control device having a servo valve control device capable of performing normal control without occurrence of a valve opening control deviation even when disturbance occurs at the input end of the servo valve. SOLUTION: The servo valve control device 51 effects controls such that the opening target value of the servo valve and an actual valve opening signal are inputted and the opening of the servo valve follows in the wake of a target value. The servo valve control device is provided with a controller 5-2 to input a deviation between a valve opening command signal and an actual valve opening signal and output a servo command signal for driving the servo valve; an input end disturbance estimating part 5-6 to estimate an input end disturbance signal added to the servo valve; and a feed forward pass 5-7 to re-calculate a servo command signal by adding and subtracting the output of the input end disturbance estimating part 5-6 to and from the servo command signal. COPYRIGHT: (C)2004,JPO&NCIPI
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