Pressurized Water Reactor Simulated Calculation Research Based On Simulink

With the rapid development of nuclear power, people start to study application and control of nuclear engineering more deeply than before.The operation of the nuclear power plant is a complex physical, thermal process. Nuclear scientists want to get the data what they need, while preventing from nuclear proliferation. So they begin to develop nuclear plant simulation system.This paper is based on nuclear physic theory and makes neutron physical mathematical dynamic modules of Pressurized Water Reactor. And temperature effect and poisoning effect are also concerned in this study. Meanwhile, the incremental form of three equations is calculated. Then, we can employ the Laplace transformation to these equations to get the three transfer functions. Finally, neutron dynamic module is established by Simulink software in the Matlab. In this section, the module which is added temperature effect and poisoning effect in is also concerned. I make the simulated calculation, and study the reactive dynamic response rules in different external disturbance.The results of simulation show that the power of Pressurized Water Reactor is increasing by reactive disturbance without adding feedback. It cannot go back to equilibrium. When adding temperature and poisoning feedback, reactive disturbance cannot make power of reactor increased constantly. They make opposite changes. It shows that reactor has considerate security characters,such as self-adjust and stability. Through simulated calculation, some thoughts and important basis are provided to the reactor control research in the future.