Antonelli, Terry & Wands
Method and apparatus for guidance of an operation of operating power plants
 This invention refers to a .[.plant operating.]. method .Iadd.and apparatus for guidance of an operation .Iaddend.for overcoming an abnormal status of a plant. A plant data is detected from the plant, and all plant state members indicating an abnormality of the plant are identified from the plant data. The plant operating method .Iadd.and apparatus .Iaddend.includes .Iadd.apparatus for .Iaddend.estimating a cause whereby the plant status members are produced, predicting all plant status members arising after passing a given period of time according to the estimated cause, determining whether or not actual plant status members are present in the plant state members predicted and when the latter members are not present in the former members, repeatedly carrying out the processing of the steps of estimating and predicting to which the plant status members forcasted at the predicting step are inputted until all the actual plant status members come to exist in the plant status members forecasted at the predicting step. When all the actual plant status members are present in the plant status members predicted at the predicting step, a plant operation for overcoming the cause obtained at the step of estimating which produces the predicted plant status members is selected, and the plant operation is carried out according to the selected operation. 
Hitachi, Ltd.
Takashi Takao Kenichi
Kiguchi Watanabe Yoshida