Thesis (M.Eng.)--Chulalongkorn University, 1999

This study has been performed to solve the problem of the Distributed Control and Information System (DCIS) configuration design. The problem of DCIS configuration design was about the amount of the DCIS controllers and the DCIS controller system reliability. The reliability analysis technique was used to solve the problem area and find a good fit result. Firstly, the necessary information of the reliability analysis of the DCIS controller for the case study has been illustrated. Then the case study, which was Krabi thermal power plant project, was analyzed. The DCIS configuration design procedure has been reviewed by taken into account the past experiences and opinions of the concerned expert engineers. The impacts, which affect the number of the DCIS controller, have been reviewed. Finally, by using the result from the analysis of the case study and all impacts, the criteria of configuration design of the DCIS for power plant in the terms of reliability has been developed. The criteria for configuration design of the DCIS for power plant are the results of the study. It is a good tool for design engineer of EGAT to do the better improvement to the DCIS configuration design in the reliability aspect for future power plant projects of EGAT. The reliability analysis methodology can also be an additional benefit, which can be applied to solve other problem areas in the terms of reliability.