PWR Core Power Control and Simulation Based on Multi-Model Strategy

The Pressurized Water Reactor（PWR） core nonlinear model is built and the linearized models of the core at five power levels are respectively calculated as local models of the core to approximately substitute the core model.The full-state feedback method with a full-state observer of a local model is utilized to design a controller with robustness of every local model,which is treated as a local controller of the core for controlling the nonlinear core within a corresponding range of power level.The simulation results show that the core multi-model control system can satisfactorily control the core power.