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随着智能电网的发展,终端负荷受到了广泛关注,尤其是空调系统负荷,其是夏季用电高峰负荷的大户。以普通的一次泵变流量的中央空调系统为研究对象,建立了冷水机组和循环水泵模型。当末端负荷采用温度控制时,探讨了不同室温设定值下,温度、负荷率及能耗的变化,结果表明,随着室温设定值升高(如22℃升至28℃),全天满负荷运行时间降低79.6%,功率也降低了约14.5%。另外,以24 h为时间计算节点,给出了综合部分负荷性能系数(IPLV)的计算公式,并提出了能够描述日能耗高低的日综合部分负荷性能系数。
With the development of smart grid, the terminal load has received widespread attention, especially the air conditioning system load, which is a large load of summer peak load. Taking the ordinary primary air conditioning system with variable flow rate as the research object, a chiller unit and a circulating pump model were established. When the end load is controlled by temperature, the changes of temperature, load rate and energy consumption under different room temperature settings are discussed. The results show that as the set value of room temperature increases (for example, 22 ℃ to 28 ℃) 79.6% reduction in full-load operation and about 14.5% reduction in power. In addition, the calculation formula of the integrated partial load capacity coefficient (IPLV) is given by computing the nodes in time of 24 h, and the daily integrated partial load performance coefficient capable of describing the daily energy consumption level is proposed.