TESEC 2001

ADVANCED TECHNIQUES FOR SAFETY ANALYSIS APPLIED TO THE GAS TURBINE CONTROL SYSTEM OF  ICARO CO GENERATIVE PLANT 

Andrea Bobbio1, Sandro Bologna2, Ester Ciancamerla2, Piero Incalcaterra2,  Corrado Kropp2, Michele Minichino2, Enrico Tronci3


1Università del Piemonte Orientale
2ENEA CR Casaccia 
3Università dell'Aquila




ABSTRACT

The paper describes two complementary and integrable approaches, 
a probabilistic one and a deterministic one, 
using classic and advanced modeling techniques for safety analysis of complex 
computer based systems. Such approaches are applied to the  
gas turbine control system of ICARO co generative plant, 
in operation at ENEA CR Casaccia. 

The probabilistic approach addresses the control system by itself, 
as the set of sensors, processing units and  actuators, while the
 deterministic approach also includes the behaviour of the equipment under control, 
which interacts with the control system. The final aim of the research, 
documented in  this paper, is to explore an innovative method which 
put the probabilistic and deterministic approaches in a strong relation, 
to overcome the drawbacks of their isolated, selective and fragmented use 
which can lead to inconsistencies in the evaluation results.