模块式高温气冷堆的非线性自适应功率控制  

Nonlinear adaptive power-level control for modular high temperature gascooled reactors

作　　者：董哲[1] 

机构地区：[1]清华大学核能与新能源技术研究院,北京100084

出　　处：《仪器仪表用户》2013年第5期42-46,共5页Instrumentation

基　　金：国家重大科技专项(ZX06901);国家自然科学基金(61004016);清华大学自主科研基金(20121087992)资助项目

摘　　要：由于具有固有安全性和潜在经济竞争力,模块式高温气冷堆(Modular High Temperature Gas-cooled Reactor,MHTGR)已被视为下一代核能系统的首选堆型之一。功率调节是保证MHTGR安全、稳定和高效运行的关键技术之一,而MHTGR在动态特性上具有非线性强和不确定性大的特点,因此发展MHTGR的非线性自适应功率控制器对于提升运行性能具有重要意义。在充分利用系统自身对镇定有益的动态特性的基础上,本文给出一种新颖的MHTGR非线性自适应功率控制器,并从理论上证明该控制器既可以保证闭环系统的全局渐近稳定性,又对系统不确定性具有自适应功能。数值仿真结果不仅验证了控制器的可行性,而且还给出了调节性能与控制器参数间的关系。Because of its inherent safety feature and potential economic competitiveness,the modular high temperature gas-cooled reactor （MHTGR） is regarded as the central part of the next generation of nuclear plant（NGNP）.Power-level control is one of the key techniques that guarantee the safe,stable and efficient operation for any nuclear reactors.Since the MHTGR dynamics have the characteristics of strong nonlinearity and uncertainty,which can improve the operation performance.It is significant to develop the nonlinear adaptive power-level controller for the MHTGR.Based on the natural dynamic features beneficial to system stabilization,a novel nonlinear adaptive power-level controller is given for the MHTGR in this paper.It has proved theoretically that this newly-built controller not only provides the overall asymptotic closed-loop stability,but also is adaptive to the system uncertainty.This controller has been applied in the power-level regulation of the pebble-bed MHTGR of the HTR-PM power plant.Numerical simulation results confirm the feasibility of this control strategy and the relationship between the performance and parameters.

关 键 词：高温气冷堆 功率控制 非线性自适应控制 

分 类 号：TL361[核科学技术—核技术及应用]