中国电机工程学报2012,Vol.32Issue(29):123-130,8.
给定结构低阶控制器的H∞回路成形设计及在蒸汽发生器水位控制中的应用
Structured Low Order Controller Design for H∞ Loop Shaping Method and Application in Water Level Control of Steam Generators
摘要
Abstract
To overcome the difficulty in weight selection and high order of the derived controller in standard H∞ loop shaping design, a structured low order controller design for H∞ loop shaping method was proposed. The design method combines structured low order weight optimization with static H∞ synthesis. Once the order and structure of controller together with control points coordinate of the bounds of shaped plant singular value are given, the linear matrix inequality based iterative optimization can be adopted to design the controller with desired control performance index and maximum robust stability margin. Second order robust controller was designed for steam generator water level plant. The comparative simulations of step response for level set point and steam flow rate at different power level with the proposed scheme, active disturbances rejection control algorithm and double PI control one were performed. Simulation results show that the proposed control system achieves good performance and its robust stability is better than the other two ones.关键词
蒸汽发生器水位控制/鲁棒控制/静态H∞回路成形/权函数优化/线性矩阵不等式Key words
steam generator level control/ robust control/static H∞ loop shaping/ weight function optimization/ linear matrix inequality分类
能源科技引用本文复制引用
周世梁,刘玉燕..给定结构低阶控制器的H∞回路成形设计及在蒸汽发生器水位控制中的应用[J].中国电机工程学报,2012,32(29):123-130,8.基金项目
中央高校基本科研业务费专项资金资助项目(10MG34). (10MG34)