CAJ | 학술논문

采用6组缓发中子点堆模型，模拟堆芯在初始达临界和零功率物理试验时，引入20 pcm和60 pcm典型阶跃反应性，研究卡尔曼滤波算法和动态滤波算法。结果表明：卡尔曼滤波算法能减弱中子瞬跳的影响，具有较好的自适应性，但在瞬态初期测量误差偏大，在大反应性引入时启动保护的响应时间较长；动态滤波算法通过优化功率相对变化量定值LAMMA ，并定期调整增益相关参数λ，具有测量准确、大反应性下保护响应快的优点，但频繁定值调整耗时较多，并增加了误操作的风险；静态滤波的增益为优化的常数，具有测量准确、节省时间和安全的优点。
채용6조완발중자점퇴모형，모의퇴심재초시체림계화령공솔물리시험시，인입20 pcm화60 pcm전형계약반응성，연구잡이만려파산법화동태려파산법。결과표명：잡이만려파산법능감약중자순도적영향，구유교호적자괄응성，단재순태초기측량오차편대，재대반응성인입시계동보호적향응시간교장；동태려파산법통과우화공솔상대변화량정치LAMMA ，병정기조정증익상관삼수λ，구유측량준학、대반응성하보호향응쾌적우점，단빈번정치조정모시교다，병증가료오조작적풍험；정태려파적증익위우화적상수，구유측량준학、절성시간화안전적우점。
A point reactor model with 6 groups delayed neutrons was adopted to simulate the typical 20 pcm and 60 pcm prompt reactivity insertion during the period of initial criticality and zero power physics test .Both Kalman filter and dynamic filter algorithms were studied .The results show that the Kalman filter approach can attenuate the impact of neutron prompt jump and gives features of self-adaptation .However ,it reaches less accuracy at the earlier transient period and the protection response time is long w hen large reactivity is inserted . T he dynamic filter approach gives high accuracy and response quickly through the optimization of the relative power change LAMMA and gain coefficient λ. However , frequent adjustment of λtakes time and increases the probability of operation mistakes .Static filter ,with optimized constant gain coefficient , is accurate ,timesaving and safe .