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反应堆氙瞬态响应是负荷跟踪过程中的主要问题之一,它关系到反应堆运行的弪济性和安全性。本文根据sTM(system Tau Metl,0d)求解线性优化问题不需迭代、速度快、精度高等特点,以及微分动态规铷DDP(Differential Dynamic Pr0一gramming)求解非线性优化问题时,在最优轨线领域很快收敛的特点,提出了先用sTM预估标称控制,然后再用DDP逼近非线性最优解的sTMDDP算法。计算表明,sTMDDP不仅有效地解决了非线性优化计算的收敛问题,而且与其它常用方法比较,在计算精度相同情况下,迭代次数减少,计算时间显著缩短。实例计算所得结论,对工程实际有重要参考价值。
Reactor xenon transient response is one of the main problems in load tracking, which is related to the economy and safety of reactor operation. In this paper, based on the system Tau Metl (0d), which solves the linear optimization problem without iteration, high speed and high accuracy, as well as the Differential Dynamic Programming (DDP) for solving nonlinear optimization problems, STMDDP algorithm which uses sTM to estimate the nominal control and then uses DDP to approximate the nonlinear optimal solution. The calculation shows that sTMDDP not only effectively solves the convergence problem of nonlinear optimization calculation, but also reduces iteration times and significantly reduces computation time compared with other commonly used methods under the same computing accuracy. The conclusion of the example calculation has important reference value to the actual project.