基于热网及建筑物蓄热特性的大型供热机组深度调峰能力研究  

Research on the Capacity of In-depth Peak Regulation of Large-scale Heat Supply Unit Based on Characteristics of Thermal Storage of Heat Supply Network and Buildings

作　　者：毕庆生[1] 吕项羽[2] 李德鑫[2] 董添[2] 韩晓娟[3] 

机构地区：[1]长春工程学院能源与动力工程学院吉林省建筑能源供应及室内环境控制工程研究中心,长春130012 [2]国网吉林省电力有限公司电力科学研究院,长春130021 [3]华北电力大学控制与计算机工程学院,北京102206

出　　处：《汽轮机技术》2014年第2期141-144,共4页Turbine Technology

摘　　要：针对我国北方区域电网风电并网后在冬季供暖期经常弃风情况,以及电网内存在高比例的大型供热机组的特点,提出了基于热网及建筑物蓄热特性的大型供热机组深度调峰的方法,并建立了深度调峰的数学模型;通过案例计算,在一定范围内大型供热产热量的变化不会影响供热质量。在采暖期间,热网配合电网低谷深度调峰适当降低热负荷运行,在电网调峰容量十分紧张情况下利用建筑物具有蓄热特点适当减少供热量,从而获得更加深度调峰容量空间协助电网度过低谷具有可行性和可操作性;建立的数学模型可计算出提前蓄热时间和放热时间以及机组的深度调峰能力,为电网调度进行供热机组深度调峰提供了科学的依据。Against the backdrop that wind power is always abandoned in heat supply period in winter after wind power is taken into power grid in northern areas of China and there exists a big proportion of large-scale heat supply units in power grid, a method for in-depth peak regulation of large-scale heat supply unit based on characteristics of thermal storage of heat supply network and buildings is put forward in this paper, and a mathematical model for in-depth peak regulation is established. The calculation in a case indicates that the change of heat production of large-scale heat supply unit will not affect the quality of heat supply to a certain extent. During heat supply period, thermal load of heat supply network shall be moderately lowered to coordinate with the in-depth peak regulation when power grid is at its low ebb, and heat supply shall be moderately decreased based on characteristics of thermal storage of heat supply network and buildings when the peak regulation capacity of power grid is very limited, which indicates that it is feasible and practical to help power grid go through its low ebb with the peak regulation capacity gained here. Through the mathematical model established in this paper, time of thermal storage and thermal release as well as such unit＇ s capacity of in-depth peak regulation can be calculated, wl^ich provides a scientific basis for dispatcher of power grid to conduct in-depth peak regulation of heat supply unit.

关 键 词：大型供热机组 热网及建筑物 供热模式 蓄热特性 电网调峰 深度调峰能力 

分 类 号：TE662[石油与天然气工程—油气加工工程]