PLANT ANALYZER, PLANT ANALYSIS METHOD, AND PROGRAM THEREOF
A state quantity acquiring unit is configured to acquire a state quantity of a turbine including a temperature of the turbine. A variable calculation unit is configured to calculate a history variable with respect to a history of the state quantity. A time calculation unit is configured to calculate the operable time at an over firing operation of the turbine based on a history variable corresponding to a design life of the turbine and a calculated history variable.
1 . A plant analyzer comprising:
a state quantity acquiring unit configured to acquire a state quantity of a turbine including a temperature of the turbine;
a variable calculation unit configured to calculate a history variable with respect to a history of the state quantity; and
a time calculation unit configured to calculate an operable time at an over firing operation of the turbine based on a history variable corresponding to a design life of the turbine and a calculated history variable.
2 . The plant analyzer according to claim 1 , further comprising:
a first determination unit configured to determine whether or not the over firing operation of the turbine is possible based on the operable time calculated by the time calculation unit.
3 . The plant analyzer according to claim 1 ,
wherein the time calculation unit is configured to calculate the operable time to prevent the turbine from reaching a product life until an inspection timing of the turbine.
4 . The plant analyzer according to claim 1 , further comprising:
an inspection timing determination unit configured to determine the inspection timing of the turbine based on the operable time calculated by the time calculation unit.
5 . The plant analyzer according to claim 1 , further comprising:
a distance calculation unit configured to calculate a Mahalanobis distance based on the state quantity; and
a second determination unit configured to determine whether or not the over firing operation of the turbine is possible by the Mahalanobis distance.
6 . The plant analyzer according to claim 1 , further comprising:
a third determination unit configured to determine whether or not the over firing operation of the turbine is possible based on whether or not a power selling price is less than a predetermined threshold.
7 . A plant analysis method comprising the steps of:
acquiring a state quantity of a turbine including a temperature of the turbine;
calculating a history variable with respect to a history of the state quantity; and
calculating an operable time at an over firing operation of the turbine based on a history variable corresponding to a design life of the turbine and a calculated history variable.
8 . A non-transitory computer-readable computer medium storing a program causing a computer to function as:
a state quantity acquiring unit configured to acquire a state quantity of a turbine including a temperature of the turbine;
a variable calculation unit configured to calculate a history variable with respect to a history of the state quantity; and
a time calculation unit configured to calculate an operable time at an over firing operation of the turbine based on a history variable corresponding to a design life of the turbine and the calculated history variable.