| 摘要 |
PROBLEM TO BE SOLVED: To achieve both of the controllability in transient state relative quantity and stability in steady state control. SOLUTION: A specific state quantity is defined as a reference state quantity, and a state quantity controlled so as to maintain a specified value of relative quantity to the reference quantity is defined as a tracking state quantity. A calculation part 6-1 to 6-3 converts a set value of the tracking state quantity into an internal input value by obtaining the internal input value by summing a first element for the reference state quantity with a second element for the relative quantity, an element of the input value for control operation for the reference state quantity to be the first element, and a value obtained by multiplying the element of the input value for control operation for the relative quantity by a coefficient Bi to be the second element. A coefficient Bi switching determination part 10 selects a first value as the coefficient Bi when a measured value PVi of the tracking state quantity is far from the set value SPi of the tracking state quantity, and selects a second value lower than the first value in trackability of the measured value PVi to a measured value PVm of the reference state quantity when the measured value PVi is near the set value SPi. COPYRIGHT: (C)2007,JPO&INPIT
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