Diagnostics-Oriented Modelling of Micro Gas Turbines for Fleet Monitoring and Maintenance Optimization

Authors: Moksadur Rahman, Valentina Zaccaria, Xin Zhao, Konstantinos Kyprianidis (Mälardalen University, Västeras, Sweden)

Journal: Processes, Volume: 6, Issue:11, Section: Computational Methods, Special Issue: Modeling and Simulation of Energy Systems.

Abstract: The market for the small-scale micro gas turbine is expected to grow rapidly in the coming years. Especially, utilization of commercial off-the-shelf components is rapidly reducing the cost of ownership and maintenance, which is paving the way for vast adoption of such units. However, to meet the high-reliability requirements of power generators, there is an acute need of a real-time monitoring system that will be able to detect faults and performance degradation, and thus allow preventive maintenance of these units to decrease downtime. In this paper, a micro gas turbine based combined heat and power system is modelled and used for development of physics-based diagnostic approaches. Different diagnostic schemes for performance monitoring of micro gas turbines are investigated.

Key words: micro gas turbine, modelling, diagnostics, gas path analysis, analysis by synthesis

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