基于模型预测控制的建筑热力入口智能调节方法模拟研究  

Simulation Research of Intelligent Regulation Method at Building Heat Entrance Based on Model Predictive Control

作　　者：马良栋[1] 张继谊 李志伟[1] 朱凯 MA Liangdong;ZHANG Jiyi;LI Zhiwei;ZHU Kai(Dalian University of Technology,Dalian,116024,Liaoning,China;Dalian Qunzhi Swarm Intelligent Technology Co.Ltd,Dalian,116023,Liaoning,China)

机构地区：[1]大连理工大学,辽宁大连116024 [2]大连群智科技有限公司,辽宁大连116023

出　　处：《建筑科学》2021年第12期85-93,共9页Building Science

基　　金：国家重点研发计划项目“新型建筑智能化系统平台技术”(2017YFC0704100)。

摘　　要：建筑热负荷通常在设计之初即被确定,然而随着建筑的使用以及室外天气因素的不确定性,建筑实际所需热负荷时刻变化,造成建筑热网热力失调,本文针对该问题,提出了1种基于模型预测控制的建筑热力入口智能调节方法,首先基于能耗监测平台的实时监测数据通过子空间模型辨识方法对某建筑热力系统进行模型辨识,在此基础上,结合模型预测控制的方法进行了模拟分析,研究了热力入口智能调节方法的控制特性,并与传统PID控制结果进行了比较分析。结果表明:该方法能够较好地控制建筑室内温度;与PID控制相比,在同等室外天气条件下,模型预测控制具有精度更高,稳定性更好,鲁棒性更强的特点。The thermal load of buildings is usually determined at the beginning of design,however,with the use of buildings and the uncertainty of outdoor weather factors,the actual load changes,causing the thermal and hydraulic imbalance.Targeting at solving this problem,this paper proposed an intelligent regulation method at building heat entrance based on Model Predictive Control.Based on the real-time monitoring data of the energy consumption monitoring platform,the model identification of a building thermal system was first carried out through the subspace model identification method.Based on that,the model predictive control method was used for simulation analysis to study the thermal entrance control characteristics of intelligent adjustment method,and compare and analyze the results with those of traditional PID control.The results show that the method can properly control indoor temperature.Compared with PID control,the model predictive control has higher accuracy,better stability and stronger robustness under the same outdoor weather conditions.

关 键 词：集中供热系统 热力入口 模型预测控制 模型辨识 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]