Reevaluate the problems on nuclear safety by using reactor dynamics analysis method

This paper gives two important conceptions on nuclear reactor system safety by means of analyzing nuclear reactor dynamic performance, which are called as the stability of internal disturbance and the stability of external disturbance. Also, through comparison among the results of computer simulation by using reactor dynamics analysis method, the paper reevaluates the problems on nuclear safety and safety protection system design, and gives new design ideas. Such ideas have the important reference value for the instrumentation and control system designer to construct an actual safety protection system or control system. (author)