摘要
针对反应堆功率控制系统设计中存在的建模误差以及实际运行过程中参数的不确定性,提出了一种新的功率保成本鲁棒控制器设计方法:运用线性矩阵不等式先求解出最优状态反馈保成本控制器,构造卡尔曼滤波器解决实际问题中状态不可测的问题,采用回路恢复的方法使总系统逼近目标反馈环传递函数。系统仿真结果表明,所设计的控制器实现了对设定功率的精确跟踪,解决了在堆模型不确定性、运行过程中参数不确定性下控制系统可能出现的不稳定和控制精度不够的问题,系统不但具有良好的鲁棒性,而且调节性能较好,满足堆功率调节控制的要求。
A robust nuclear reactor power controller was developed by using a novel robust guaranteed cost control method proposed in this paper to address the instability and insufficient control precision, which was caused by the uncertainty of nuclear reactor model and randomness in real operation condition. The state feedback matrix was obtained by solving linear matrix inequality. Kalman filter was constructed to address the problem that some state variables could not be measured in real system. Loop transfer recovery method was used to make the transfer function of the whole system to approach the target feedback loop transfer function as close as possible. The system simulation indicated that the controller designed based on this method could follow the appointed power signal exactly. Furthermore, the control system had good robustness characteristics and presented good control accuracy to meet the design requirements.
出处
《核科学与工程》
CSCD
北大核心
2009年第2期118-122,130,共6页
Nuclear Science and Engineering
关键词
反应堆
功率控制器
保成本控制
鲁棒性
reactor
power controller
guaranteed cost control
robustness
uncertainty
