热工非最小相位对象工程控制及整定方法  

Engineering control and tuning method for thermal non-minimum phase plant

作　　者：马增辉 梁枫 王连刚 MA Zenghui;LIANG Feng;WANG Liangang(Hainan Tropical Ocean University,Sanya 572022,China;Yazhou Bay Innovation Institute,Hainan Tropical Ocean University,Sanya 572022,China;Xi’an Thermal Power Research Institute Co.,Ltd.,Xi’an 710054,China;Huaneng Lanzhou Newarea Cogeneration Company,Lanzhou 730050,China)

机构地区：[1]海南热带海洋学院,海南三亚572022 [2]海南热带海洋学院崖州湾创新研究院,海南三亚572022 [3]西安热工研究院有限公司,陕西西安710054 [4]华能兰州新区热电有限公司,甘肃兰州730050

出　　处：《热力发电》2023年第11期173-179,共7页Thermal Power Generation

基　　金：海南省自然科学基金高层次人才项目(623RC506);海南热带海洋学院科研项目(RHDRC202004)。

摘　　要：含有不稳定零点的非最小相位对象在电力生产过程中广泛存在,由于存在非最小相位特性,要求控制系统在确保输出跟踪的同时还要兼顾内部稳定性,在克服系统负调的同时,要尽量提高其响应速度,普通的PID控制难以满足工程应用的需要。基于此,首先,提出了一种非最小相位对象工程控制及其整定方法,设计鲁棒PID控制器实现系统无差控制,提高系统稳定性,同时克服系统负调;然后,设计二阶滤波器,并引入系统位置误差、速度误差、加速度误差信息,以提高系统的响应速度,改善系统动态性能。该方法原理简单,整定方便,易于在DCS中组态实现,且对模型不确定性有较强的鲁棒性,具有较好工程应用价值。The non-minimum phase plants with unstable zeros exists widely in the process of power production.Because of the non-minimum phase characteristics,the control system should ensure internal stability while completing output tracking,and improve response speed while overcoming the undershoot.The general PID control cannot meet the requirements of engineering applications.An engineering control and tuning method for nonminimum phase plants is proposed in this paper.Firstly,a robust PID controller is designed to ensure the stability of the closed-loop control system and overcome the under shoot of the system.Secondly,design a second-order filter that includes system position error,velocity error,and acceleration error to improve the response speed and dynamic performance of the control system.This method is simple,easy to tune,easy to configure in DCS,and has strong robustness to model uncertainty,which is worth promoting in engineering.

关 键 词：非最小相位 H∞控制 鲁棒PID 二阶滤波 改进帝国竞争算法 

分 类 号：TM73[电气工程—电力系统及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]