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现行 AN-92-08-1
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A Comparison of Chiller-Priority, Storage-Priority and Optimal Control of an Ice-Storage System 制冷机优先、蓄冷优先和冰蓄冷系统最优控制的比较
描述了威斯康星州密尔沃基市一栋办公楼中安装的部分冰蓄冷系统的控制策略比较。比较了该系统在最小能量和需求费用方面的最优控制结果,以及简单的制冷机优先级和存储优先级控制策略。解释这些策略。研究的存储优先级策略被称为“负载限制”,涉及在高峰时段以恒定的冷却速率运行冷却器,以便在高峰时段结束时存储完全耗尽(即无冰)。注意,负荷限制控制往往会将冷却设备的峰值用电量降到最低,但也发现,在存在一天中的时间电价的情况下,负荷限制控制在能源成本方面几乎是最优的。在非设计日的时间费率存在的情况下,冷水机组优先策略提供了更大的需求和能源成本。关键词:控制、办公室、比较、冰蓄能、储能、喷雾: ASHRAE Trans。1992年,第98卷,第1部分,论文编号AN-92-8-1,893-902,图7,表2,参考文献。
Describes a comparison of control strategies for a partial ice storage system installed in an office building in Milwaukee, Wisconsin. Compares optimal control results for this systems in terms of both minimum energy and demand charges with simple chiller priority and storage-priority control strategies. Explains these strategies. The storage priority strategy investigated is termed 'load-limiting' and involves operating the chillers at a constant cooling rate during the on-peak period such that the storage is fully depleted (ie no ice) at the end of the on-peak period. Notes that load-limiting control tends to minimise the cooling plant peak electrical power use,but it was also found to be nearly optimal in terms of energy costs with the present of time-of-day electric rates. The chiller priority strategy gave significantly greater demand and energy costs in the presence of time-of-day rates for off-design days.KEYWORDS: Controls, offices, comparing, ice storage, energy storage, tariffs
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