CAJ | 학술논문

缓发中子先驱核浓度是核反应堆非常重要的状态参数之一，对于核反应堆安全控制至关重要，但却无法直接测量得到。本文基于压水堆集总参数动力学模型，给出了一种基于统一二阶滑模观测器的压水堆先驱核浓度在线估计方法，分析了二阶状态量观测误差对估算结果精度的影响，并对先驱核浓度估算公式进行了改进。仿真结果表明，该方法估计精度高、估计误差收敛快、抗噪声干扰能力较强，且对模型的参数摄动具有一定的鲁棒性。
완발중자선구핵농도시핵반응퇴비상중요적상태삼수지일，대우핵반응퇴안전공제지관중요，단각무법직접측량득도。본문기우압수퇴집총삼수동역학모형，급출료일충기우통일이계활모관측기적압수퇴선구핵농도재선고계방법，분석료이계상태량관측오차대고산결과정도적영향，병대선구핵농도고산공식진행료개진。방진결과표명，해방법고계정도고、고계오차수렴쾌、항조성간우능력교강，차대모형적삼수섭동구유일정적로봉성。
Precursor density is one of the key state parameters of nuclear reactor ,and is very important parameter to safety control of reactor , but it cannot be measured directly .An improved precursor density estimation algorithm was proposed based on uniform second order sliding model observer , which introduced a correction term according relationship of precursor density estimated error and second order state estimated error .The proposed algorithm was tested on a SIMULINK based lamped model of pressurized water reactor .Simulation results show that the algorithm has high accuracy ,satisfactory convergence , strong noise resistance and acceptable robustness under parametric perturbations .