| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a monitoring device, a gas turbine plant, and a monitoring method of the gas turbine in which any abnormal condition of a combustor can be correctly detected even when the load is changed based on the blade pass temperature at a turbine outlet. <P>SOLUTION: The monitoring device includes a temperature acquisition unit 23 for acquiring a plurality of sets of blade pass temperature T, an average temperature computation unit 24 for computing the average temperature Tave of the plurality of sets of blade pass temperature, a temperature deviation computation unit 251 for computing the temperature deviationΔT of each blade pass temperature T to the average temperature Tave, a temperature deviation change rate computation unit 252 for computing the temperature deviation rate-of-change ¾R¾, an absolute temperature deviation rate-of-change computation unit 253 for computing the absolute temperature deviation rate-of-change ¾R¾, an average rate-of-change computation unit 261 for computing the absolute temperature deviation rate-of-change average value ¾R¾ave which is the average of the absolute temperature deviation rate-of-change ¾R¾ave, a control value determination unit 262 for determining the control value C corresponding to the absolute temperature rate-of-change average value Rave, and a determination unit 27 for determining presence of any abnormal condition of a combustor by comparing the control value C with the absolute temperature deviation rate-of-change R. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
