DESIGN OF A COMPLETE MULTI-MICROCONTROLLER BASED PROTECTION SYSTEM FOR LARGE DIESEL TURBINE-GENERATOR

This paper presents a multi-microcontroller based protection system, w hich includes three relaying modules and one master control module, to realize parallel processing and background management. The proposed p rotection system is suitable to be employed as the primary and backup protection for a large diesel turbine generator. Hardware and software redundancy techniques are used, and the bottleneck effects of the sin gle processor system are eliminated. The hardware of the protection sy stem is modularized with the same architecture with respect to relayin g modules. The master control module is responsible for system monitor ing, communications and man-machine interfacing, it can reassign the p rotection functions in case of one relaying module failure. (C) 1997 E lsevier Science S.A.