Multi-objective guaranteed performance control of core power based on two-point model
The energy industry required nuclear power plants to adjust their output power according to actual power requirements.Therefore,load following operation of pressurized water reactor cores was one of the important requirements for commercial operation of pressurized water reactors.Meanwhile,in order to avoid issues such as xenon oscillations and hot spots caused by uneven power distribution in the core during operation,controlling the axial power deviation generated during core operation was also crucial for the safe operation of pressurized water reactors.Therefore,based on the neutron dynamics equation,reactivity feedback equation and thermohydraulic equation,combined with the core power space coupling,a two-node model of PWR core power was constructed,and the load following and axial power deviation following amount were added on the basis of this model.According to this model,a LPV-LQR multi-objective controller was designed,which can realize load following control and axial power distribution control and was time resistant.The simulation results under multiple classic transient conditions showed that the LPV-LQR controller has good load tracking control and axial power distribution control capabilities,and can better adapted to the time-varying nature of the core power system.
nuclear reactorpower controltwo-point modeltime-varying parameteroptimal controlload following controlaxial power deviationmulti-objective control
万方数据
维普
