基于Simulink的非线性控制系统研究  

Research on nonlinear control system based on Simulink

作　　者：顾红艳[1] 

机构地区：[1]贵州大学电气工程学院,贵阳550003

出　　处：《自动化与仪器仪表》2015年第6期70 73-,73,共2页Automation & Instrumentation

基　　金：贵州省科技厅;贵州大学合作项目(黔科合LH字[2014]7616)资助

摘　　要：通过选择合适的非线性PID控制器,能提高热工控制系统的动态性能。本文利用Simulink工具箱中的非线性设计模块(NCD模块)对4种PID控制器的参数进行优化,基于一系列的仿真试验,分析了控制系统的动态性能,并与常规线性PID控制方案相比较,结果表明非线性PID控制器对典型热力过程控制系统的动态性能有显著改善。The dynamic performance of thermal process control system can be improved significantly through selecting appropriate nonlinear PID controller. The parameters of four kinds of nonlinear PID controllers were optimized using nonlinear linear design(NCD) module in Simulink toolbox. Through a series of simulation, the dynamic performance of the control system were analysed and compared with those of linear decentralized PID controller. Simulation results indicate that nonlinear PID controllers improves the dynamic performance of typical thermal process control systems.

关 键 词：非线性PID控制器 热力过程 非线性设计模块(NCD模块) 系统仿真 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]