Performance Monitoring of AnsaldoEnergia V94.3A2 Gas Turbinesby Dynamic Simulator

摘要

In this paper, a dynamic model-based technique for the performance monitoring of gasrnturbine plants is described. The basis of the diagnostic approach is a dynamic simulator,rnrecently developed on the V94.3Ax model series characteristics, able to reproduce, with thernnecessary accuracy, not only the gas turbine plant dynamic performance but also thernstationary one. Some proper “fine tuning” parameters permit to obtain, initially, the bestrnagreement between the simulator and the measured rated performances of the real machine.rnSubsequently, the field data collected by the remote monitoring system of the power plantrnallow the simulator analysing the actual performance of the gas turbine as well as its timerntrend, with the aim to realise a “quasi-continuous” monitoring of the behaviour of thernmachine main components (compressor, turbine, combustion chamber, etc.) and to detectrnsudden or gradual deviation of both partial and full plant performances. The expected goal of the research activity will be the best setting up of a diagnostic techniquernthat permits the performance monitoring of each installed Ansaldo V94.3Ax machine byrnmeans of the working data collected from various plants at the Ansaldo Service MonitoringrnRoom and made available, from this last, for all the Ansaldo Energia SpA Engineering Units.