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化工学报  2015 

基于TRNSYS的冷热电联供系统建模与蓄能策略分析

DOI: 10.11949/j.issn.0438-1157.20150708, PP. 311-317

Keywords: 冷热电联供,蓄能,动态仿真,(火用),模型,控制策略

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Abstract:

冷热电联供是天然气高效利用的重要方面。以上海某医院为例,基于Trnsys与Matlab软件建立了天然气冷热电联产系统的动态仿真与控制模型。对传统蓄能策略、"主动蓄能"策略和新型蓄能策略进行了描述。利用该模型计算了系统在不同蓄能容量与控制策略下的效率、一次能源节约率和投资回收期,并进行了对比分析。结果表明,"主动蓄能"策略下联供系统对建筑供能的贡献率低,性能差于其他蓄能策略;新型蓄能策略下的系统运行时间能得到很大的延长。它能有效发挥蓄能设备的作用,使联供系统为建筑提供更多的高效能量。电力不能上网的条件下,联供系统的节能潜力受到很大的限制。

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