Reactor protection system

The invention discloses a reactor protection system, which is characterized in that a reactor shutdown unit and a special unit are combined into a protection logic unit, a first protection logic subgroup is realized by adopting embedded hardware, a second protection logic subgroup is realized by adopting FPGA (Field Programmable Gate Array) hardware, diversity is realized from an equipment bottom layer, and common cause failure influence is completely eradicated from a system bottom layer. The integration level of the reactor protection system is improved, system hardware equipment is reduced, system arrangement is more flexible, and the miniaturization design requirement is met. Point-to-point communication and ring network communication modes are used in the same system. Point-to-point communication is used for logic function operation, ring network communication is used for information display, function extension of system information display is improved, a communication network topological structure is op