计及用热舒适度弹性的热电联合优化调度  

Dispatch of a combined heat-power system considering elasticity with thermal comfort

作　　者：董彧彤 王艳松[1] 倪承波[2] 衣京波 DONG Yutong;WANG Yansong;NI Chengbo;YI Jingbo(College of New Energy,China University of Petroleum(East China),Qingdao 266580,China;Shengli Petroleum Bureau,Dongying 257000,China;Shengli Power Plant,Shengli Petroleum Administration Bureau,Dongying 257087,China)

机构地区：[1]中国石油大学(华东)新能源学院,山东青岛266580 [2]胜利石油管理局,山东东营257000 [3]胜利石油管理局胜利发电厂,山东东营257087

出　　处：《电力系统保护与控制》2021年第23期26-34,共9页Power System Protection and Control

基　　金：山东省重点研发计划项目资助(2019GGX103045)。

摘　　要：冬季采暖期热电联产机组为满足供热需求,强迫电出力导致机组调峰能力受限。为提高热电联供系统调峰能力,促进可再生能源的消纳,首先建立热负荷供能设备的运行特性模型,在负荷侧通过引入室外气象综合温度,建立了考虑用热舒适度的热负荷模型。以总煤耗量最小、最大限度消纳光伏为目标,建立考虑用热舒适度弹性的热电联合优化调度模型,并通过仿真验证其有效性。结果表明,用户在用热舒适度弹性范围内通过热舒适度下调,为光伏出力高峰阶段提供弹性上网空间,可以有效提高光伏发电的消纳水平,同时降低了燃料成本。而配合高效率的热源设备时,考虑室外气象综合温度的热负荷调节方式进行消峰效果不明显。In the winter heating period,the forced power output of cogeneration units is at a high level to meet heating demand.This leads to the limited peak regulation capacity of units.To improve the peak regulation ability of the cogeneration system and promote the absorption of renewable energy,the meteorological factors affecting the thermal comfort level are considered,and an operational strategy of exploiting the elasticity of the thermal load side is formulated.First,the operating characteristic model of thermal energy supply equipment is established.In the load side,the thermal load model considering thermal comfort is established by introducing the outdoor meteorological temperature.Then,aiming at minimizing total coal consumption and maximizing photovoltaic consumption,a combined optimization scheduling model considering thermal comfort elasticity is established.Its effectiveness is verified by simulation.The results show that by reducing the thermal comfort level within the elastic range of the user's thermal comfort level,flexible Internet space can be provided for the peak stage of photovoltaic output.This can effectively improve the consumption level of photovoltaic power generation and reduce the fuel cost.However,when combined with high efficiency heat source equipment,the effect of heat load regulation considering the comprehensive outdoor meteorological temperature on peak reduction is not obvious.

关 键 词：热电联合调度 用热舒适度 二级热网辅助热源 空气热泵 

分 类 号：TM621[电气工程—电力系统及自动化]