Network Design And Implementation Of The Reactor Protection System

Reactor protection system is one of the most important safety systems in the nuclear power plant. This system plays a significant effect on ensuring the safety of equipment of nuclear power plant, safety of personnel and environmentBy using advanced digital technology, reactor protection system could get over the shortcoming such as problem of complex arithmetic realization, longer term of periodic testing, difficult to realization of online self testing, weakness of availability on information storage and information presentation, and maintenance inconvenienced, difficulty on seeking store or spare part, even have to confront with lack of reserve technical personnel, etc.. On the contrary, the huge potential and advantage of applying digital technology into reactor protection system is obviously on improve nuclear power plant availability, reliability, maintainability, economy and flexibility.Whether the designed function of the system can be performed accurately or not is lied on the security and reliability of the network. Especially to the reactor protection system which is belonging to safety classified system of nuclear power plant, networks of redundant channels inside the equipment should be provided with highest security and reliability. Loss of safety class network may disturb implementing the function of protection system severity; even endanger not only the safety of reactor but also the safety of the whole nuclear power plant.This project is dedicated on instituting the solutions of network designations and finally realizes the network of the digital reactor protection system. Chiefly contents of this disquisition are as follows:1. Ascertain the types of safety classified network according to the structure of digital reactor protection system, distinguish the system network into safety data network between channels and information communication network between alarm systems.2. Development of communication software, including substrate drivers and super stratum applied software.3. Designation of the interface. 4. Network test. Test the network by compare of consequential data during long period circulating.5. Implement verification and validation activity on development of the software.