锅炉技术2024，Vol.55Issue(2)：20-26,38,8.
基于弱稳态检测的燃煤锅炉热值校正方法
Method of Coal-Fired Boiler Fuel Caloricity Correction Based on Weak Steady-State Detection
雷志伟 1张剑 1欧阳宫喆2
作者信息
- 1. 中国大唐集团科学技术研究总院有限公司华东电力试验研究院,安徽 合肥 230031
- 2. 安徽淮南洛能发电有限责任公司,安徽 淮南 232000
- 折叠
摘要
Abstract
The self-adaption control of fuel caloricity is one of the key technologies to im-prove the control quality of coordinated control system.The BTU corrector is widely adopted as a primary means of caloricity correction,but it is difficult to achieve accurate and fast cor-rection of fuel calorific value.Therefore,this paper proposes a new fuel calorific correction method based on weak steady-state detection.First,operation parameters of the unit are detected real-time and the adjacent weak steady-state model is dynamically built.Second,the calorific-co-rection control circuit is designed and its outputs are used in the coordinated con-trol system which solves industry challenges in online dynamic correction of fuel calorific val-ue.The application results show that the method of calorific correction based on weak steady-state detection can accurately calculate the value of calorific correction for the current coal quality,shorten the closed-loop regulation process of coordinated control system,and reduce the control deviation of load,main steam pressure and intermediate point temperature,so it can improve the quality of the coordinated control comprehensively.This method has high correction accuracy and realizes dynamic model updates,and it can quickly catch the change of unit calorific value which can be used in coal-fired power generating units with coal blend-ing.关键词
自适应/协调控制/热值校正/弱稳态/配煤掺烧Key words
self-adaption/coordinated control system/caloricity correction/weak steady-state/coal blending分类
能源科技引用本文复制引用
雷志伟,张剑,欧阳宫喆..基于弱稳态检测的燃煤锅炉热值校正方法[J].锅炉技术,2024,55(2):20-26,38,8.
