高温气冷堆PD输出反馈功率控制的镇定性能分析  

Stabilization Analysis of PD Output Feedback Power-level Control for High Temperature Gas-cooled Reactor

作　　者：董哲[1] 黄晓津[1] 

机构地区：[1]清华大学核能与新能源技术研究院,先进核能技术协同创新中心,先进反应堆工程与安全教育部重点实验室,北京100084

出　　处：《原子能科学技术》2015年第B05期402-408,共7页Atomic Energy Science and Technology

基　　金：国家自然科学基金资助项目(61374045);国家科技重大专项资助项目(ZX06901)

摘　　要：由于具有固有安全性,高温气冷堆被视为下一代核能系统的首选堆型之一,且安全、稳定和高效的运行是发展高温气冷堆技术的基本要求。功率控制通过合理给出控制棒的升降速度来增强闭环稳定性和过渡过程暂态性能,因而对于提升高温气冷堆的运行性能具有重要意义。本文基于反应堆控制的物理方法,从理论上给出了比例微分(PD)输出反馈功率控制律保证闭环全局渐近稳定的充分条件。数值仿真结果验证了此结论的正确性,并揭示了功率调节性能与温度反馈回路增益之间的关系。这一结果不仅从理论上保证了经典PD反馈律可用于实现高温气冷堆的高性能功率调节,而且为利用PD控制实现负荷跟踪提供了理论基础。Due to its inherent safety feature, high temperature gas-cooled reactor （HTGR） has been seen as one of the best candidates for the next generation of nuclear plants. The safe, stable and efficient operation are necessary to the development of HTGR technique. Power-level control technique that strengthens both the closed-loop stability and transient response by properly generating the insertion or withdrawal speed of the control rods is beneficial to improve the operation performance of HTGR. In this paper, through the physically-based approach, it is proved theoretically that proportional-differential （PD） output feedback laws can provide globally asymptotic stability （GAS） for the closed-loop system if a sufficient condition is satisfied. The numerical simulation results verify the theoretic results, and show the influence of different PD feedback gains to the regulation performance. The results guarantees that classical PD output feedback control is effective for HTGR power-level regulation practically, and also shows the feasibility of applying simple PD control for load following function.

关 键 词：高温气冷堆 功率控制 全局渐近稳定性 

分 类 号：TL361[核科学技术—核技术及应用]