主蒸汽压力和床温耦合系统的改进自抗扰控制设计
Improved Active Disturbance Rejection Control Design for the Coupling System of Main Steam Pressure and Bed Temperature
柴华1
作者信息
- 1. 国网山西省电力公司电力广灵县供电公司,山西大同 037000
- 折叠
摘要
针对主蒸汽压力和床温耦合控制系统扰动抑制性能差、系统解耦复杂和参数整定困难的问题,提出一种耦合改进自抗扰控制(CIADRC).首先,建立耦合系统近似积分串联模型,在此基础上构造耦合自抗扰控制;然后,在各前馈通道串联前馈补偿器,解决耦合系统大惯性、大时滞导致线性扩张状态观测器(LESO)信号不同步问题;同时,提出定量化参数整定公式,简化参数调节;最后,在主蒸汽压力和床温耦合系统中与PID、ADRC、模型辅助ADRC(MADRC)进行仿真对比.结果表明,提出的CIADRC在定值跟随、抗扰动上均具有明显的优势,且具有广阔的工程应用前景.
Abstract
A coupled improved active disturbance rejection control(CIADRC)is proposed to address the issues of poor disturbance suppression performance,complex system decoupling,and difficulty in parameter tuning in the main steam pressure and bed temperature coupled control system.Firstly,an approximate integral series model of the coupled system is established,and on this basis,coupled self disturbance rejection control is constructed.Then,a feedforward compensator is connected in series in each feedforward channel to solve the problem of asynchronous linear extended state observer(LESO)signals caused by large inertia and time delay in the coupled system.At the same time,propose a quantitative parameter tuning formula to simplify parameter adjustment.Finally,simulation comparisons were conducted with PID,ADRC,and Model Assisted ADRC(MADRC)in the main steam pressure and bed temperature coupling system.The results indicate that the proposed CIADRC has significant advantages in fixed value following and disturbance resistance,and has great engineering application prospects.
关键词
热工系统/大惯性/大时滞/耦合系统/自抗扰控制/主蒸汽压力Key words
thermal system/large inertia/time delay/coupled system/active disturbance rejection control/main steam pressure引用本文复制引用
出版年
2024
NETL
NSTL
万方数据