| 摘要 |
PROBLEM TO BE SOLVED: To maintain plant stability and exert allowable maximum frequency fluctuation suppressing effect regardless of a state of load operation, by multiplying an output setting correction amount 33 by proper upper and lower limits cooperated with a frequency compensation amount 31. SOLUTION: The frequency bias control device suppressing the frequency deviation in a thermal electric power plant comprises a control circuit, in addition to a frequency compensation circuit correcting a load request signal (MWD) 22 depending on frequency deviation. The control circuit has an output setting correction function generating an output setting correction signal depending on the frequency deviation and adding the signal to the MWD 22 to acquire a control target value of a power generation control, and a means for multiplying the output setting correction signal 33 by upper and lower limit values. COPYRIGHT: (C)2006,JPO&NCIPI
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