| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a system for monitoring a power generating system capable of increasing the evaluation precision of the performance of an engine provided in a power generating device, and exactly predicting a failure and a deterioration status which is changed in a long time sequence. SOLUTION: In a method for monitoring a power generating device performing the evaluation of the performance of the engine based on a measurement date regularly measured by various sensors in the power generating device provided with an engine and a generator, a plurality of predetermined engine intake air temperature ranges are set and a correlation of an allowable fuel consumption rate range to a power generation output is set at each of the intake air temperature ranges, operation data comprising at least an intake air temperature, a fuel consumption rate and a power generation output are acquired from the measurement date, an operation data average value is calculated by extracting the operation date existing in the engine intake air temperature range and the predetermined power generation output range out of the operation data, it is determined that the performance of the engine is within base performance when an operation date average value exists in the allowable fuel consumption rate range at each intake air temperature range, and it is determined that the performance of the engine does not satisfy base performance when the operation date average value does not exist in the allowable fuel consumption rate range. COPYRIGHT: (C)2009,JPO&INPIT
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