基于自抗扰的核电站稳压器压力控制研究  

Research on Pressure Control of Pressurizer at Nuclear Power Plant Based on Active Disturbances Rejection Controller

作　　者：薛阳[1] 林静[1] 李媛[1] 冯建彪[1] 

机构地区：[1]上海电力学院自动化工程学院,上海200090

出　　处：《计算机仿真》2014年第1期127-131,共5页Computer Simulation

摘　　要：研究核电站稳压器压力控制问题,稳压器是核电站一回路系统中的重要设备,对核电站的安全稳定运行起到重要作用。稳压器压力控制系统是一个时变、非线性、大惯性、多干扰的被控对象,通常所运用的PID控制难以达到理想的控制效果。为解决上述问题,将自抗扰控制(ADRC)算法应用于稳压器的压力控制中,并将其与经典PID控制器的仿真曲线进行对比。仿真结果表明,自抗扰控制在缩短了调节时间的同时,有效地减小了超调量,解决了传统PID控制器存在的快速性和超调之间的矛盾;同时,在增加外扰的情况下,自抗扰控制具有较强的抗干扰能力。Pressurizer is an important equipment at nuclear power plant, and its pressure control is very important to the safety and stable operation of nuclear power plant. As the pressurizer pressure control system is time-varying, nonlinear, great-inertia and multi-disturbance system, it is difficult for traditional PID control method to obtain satis- factory control effect. Now, Active Disturbances Rejection Controller was introduced to the pressurizer pressure con- trol in this paper. And its simulation curve was compared with the traditional PID control＇ s curve. The simulation re- suhs show that the ADRC can shorten the adjusting time, effectively reduce the overshoot, and solve the contradiction between rapidity and overshoot. When there exist disturbance, the anti-interference of ADRC is better than the PID controller.

关 键 词：稳压器 压力控制 自抗扰控制 比例积分微分控制 

分 类 号：TL365[核科学技术—核技术及应用] TM743[电气工程—电力系统及自动化]