Plant diagnostic apparatus

Claim 2

A plant diagnostic apparatus for determining a cause of a fault in a power plant or the like, comprising: a plant characteristic model for storing plant characteristics; input processing means for inputting data from the plant; a plant transition data file for storing transition values of plant characteristics based on data from the input processing means; fault detecting means for detecting a fault in the plant based on the data from said input processing means; cause estimating means for estimating a cause of the fault from a fault event detected by the fault detecting means; cause estimating image generating means for generating an image to be displayed by the data from the cause estimating means; fault period simulation control means for calculating an estimated fault simulation value based upon the data from the plant characteristic model, from the plant transition data file and from the cause estimating means; simulation image generating means for generating an image of the simulation value calculated by the fault period simulation control means; display processing means for displaying and controlling the images generated by the simulation image generating means and by the cause estimating image generating means; and a display unit for displaying the estimated fault and the estimated fault simulation value under the control of said display processing means.

Claim 3

A plant diagnostic apparatus for determining a cause of a fault in a power plant or the like, comprising: a plant characteristic model for storing plant characteristics; input processing means for inputting data from the plant; a plant transition data file for storing transition values of plant characteristics based on data from the input processing means; fault detecting means for detecting a fault in the plant based on the data from said input processing means; cause estimating means for estimating a cause of the fault from a fault event detected by the fault detecting means; cause estimating image generating means for generating an image to be displayed by data from the cause estimating means; normal period simulation control means for calculating a normal period simulation value in the absence of a fault based on the data from the plant characteristic model, from the plant transition data file and from the cause estimating means; fault period simulation control means for calculating an estimated fault simulation value based on the data from the plant characteristic model, from the plant transition data file and from the cause estimating means; simulation image generating means for generating an image of the simulation values calculated by the fault period simulation control means and by the normal period simulation control means respectively; display processing means for displaying and controlling the images generated by the simulation image generating means and by the cause estimating image generating means; and a display unit for displaying the estimated cause of the fault, the normal period simulation value and the simulation value due to the estimated fault under the control of the display processing means.

Claim 4

A plant diagnostic apparatus for determining a cause of a fault in a power plant or the like, comprising: a plant characteristic model for storing plant characteristics; input processing means for inputting data from the plant; a plant transition data file for storing transition values of plant characteristics based on data from the input processing means; fault detecting means for detecting a fault in the plant based on the data from said input processing means; cause estimating means for estimating a cause of the fault from a fault event detected by the fault detecting means; cause estimating image generating means for generating an image to be displayed by data from the cause estimating means; normal period simulation control means for calculating a normal period simulation value in the absence of a fault based on the data from the plant characteristic model, from the plant transition data file and from the cause estimating means; fault period simulation control means for calculating an estimated fault simulation value based on the data from the plant characteristic model, from the plant transition data file and from the cause estimating means; simulation image generating means for generating an image of the simulation values calculated by the fault period simulation control means and by the normal period simulation control means respectively; display processing means for displaying and controlling the images generated by the simulation image generating means and by the cause estimating image generating means; and a display unit for displaying the estimated cause of the fault, the normal period simulation value and the simulation value due to the estimated fault under the control of the display processing means.

Claim 5

A plant diagnostic apparatus for determining a cause of a fault in a power plant or the like, comprising: a plant characteristic model for storing plant characteristics; input processing means for inputting data from the plant; a plant transition data file for storing transition values of plant characteristics based on data from the input processing means; fault detecting means for detecting a fault in the plant based on the data from said input processing means; cause and measure estimating means for estimating a cause and a counter measure to be taken based on a fault event detected by said fault detecting means; cause estimating image generating means for generating an image to be displayed by data from the cause and measure estimating means; fault/measure simulation control means for calculating a simulation value of a case where the estimated counter measure is taken for the estimated fault based on the data from the plant characteristic model, from the plant transition data file and from the cause and measure estimating means; simulation image generating means for generating an image to be displayed by the data from the fault/measure simulation control means; display processing means for displaying and controlling the images generated by the simulation image generating means and by the cause estimating image generating means; and a display unit for displaying the estimated cause of the fault and the fault measure simulation value under the control of the display processing means.

Claim 6

A plant diagnostic apparatus for determining a cause of a fault in a power plant or the like, comprising: a plant characteristic model for storing plant characteristics; input processing means for inputting data from the plant; a plant transition data file for storing transition values of plant characteristics based on data from the input processing means; fault detecting means for detecting a fault in the plant based on the data from said input processing means; cause and measure estimating means for estimating a cause and a counter measure to be taken based on a fault event detected by said fault detecting means; cause estimating image generating means for generating an image to be displayed by data from the cause and measure estimating means; fault/measure simulation control means for calculating a simulation value of a case where the estimated counter measure is taken for the estimated fault based on the data from the plant characteristic model, from the plant transition data file and from the cause and measure estimating means; simulation image generating means for generating an image to be displayed by the data from the fault/measure simulation control means; display processing means for displaying and controlling the images generated by the simulation image generating means and by the cause estimating image generating means; and a display unit for displaying the estimated cause of the fault and the fault measure simulation value under the control of the display processing means.