抄録
In the present maintenance system for cogeneration systems (CGS), simple diagnosis techniques are often used. To operate the CGS with higher reliability and efficiently, an advanced diagnosis system is required. One of the techniques for an advanced system is model based diagnosis, in which system load and outside air temperature etc. are taken into account and the location and the type of trouble can be identified. In this paper, we built the CGS model including thermodynamic and kinetic characteristics, and proposed a diagnosis technique by identifying characteristics of systems.