| 摘要 |
PROBLEM TO BE SOLVED: To provide a system controller which keeps stable control state by controlling overshoot of the system controller after completing self-protection control. SOLUTION: A system controller includes: a semiconductor element; an actual control value acquisition section; a deviation computation section for computing the deviation between the actual control value and a target control value; an integral term computation means for computing an integral term contained in a control command value; a first control command value computation section for determining the next control command value from the immediately preceding integral term and the deviation; a first feedback control section for exercising control in accordance with the first control command value; a protective control section for providing protective control while allowing the first control command value computation section to perform computations while the first feedback control section exercises control; a control command value decrease section; a termination time acquisition section for acquiring the information about the termination time for the protective control; and a termination control section which uses a control command value decreased by the control command value decrease section as the initial control command value after the termination time. COPYRIGHT: (C)2009,JPO&INPIT
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