基于温度优先级的并联双蒸发器冰箱的控制策略

doi:10.11949/j.issn.0438-1157.20161401

化工学报 ›› 2016, Vol. 67 ›› Issue (S2): 202-207.DOI: 10.11949/j.issn.0438-1157.20161401

基于温度优先级的并联双蒸发器冰箱的控制策略

杨丛彦, 赵丹, 丁国良, 胡海涛

上海交通大学制冷与低温工程研究所, 上海 200240

收稿日期:2016-10-08 修回日期:2016-10-19 出版日期:2016-12-30 发布日期:2016-12-30
通讯作者: 胡海涛
基金资助:
国家自然科学基金项目（51506117）；国家博士后基金项目（2015M581610）；上海市优秀学术带头人计划项目（16XD1401500）。

A control strategy based on temperature priority level for domestic refrigerator with parallel evaporators

YANG Congyan, ZHAO Dan, DING Guoliang, HU Haitao

Institute of Refrigeration & Cryogenics Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

Received:2016-10-08 Revised:2016-10-19 Online:2016-12-30 Published:2016-12-30
Supported by:
supported by the National Natural Science Foundation of China(51506117),the China Postdoctoral Science Foundation (15M581610)and the Program for Excellent Academic Leaders of Shanghai (16XD1401500).

摘要/Abstract

摘要：

大容量冰箱需要采用并联双蒸发器分别控制各箱室的温度，现有的顺序控制策略在动态工况下容易导致箱室温度超限和偏离目标平均温度的问题，因此需提出一个新的控制策略。本文提出基于各箱室需要冷量的紧迫级别来进行冷冻/冷藏循环的切换的温度优先级控制策略，并分析该控制策略如何解决在动态工况下箱室温度超限和偏离目标平均温度的问题。对采用新控制策略与现有的顺序控制策略的并联双蒸发器冰箱进行数值仿真研究，结果表明，在新控制策略下不会出现箱室温度超限的问题，且与目标平均温度的偏差均在0.6 K以内；与现有顺序控制策略相比，节能幅度最高达8.5%。

关键词: 并联双蒸发器, 冰箱, 温度, 温度优先级控制策略, 顺序控制策略

Abstract:

The adoption of a parallel evaporators for large-capacity refrigerators can control the cabinet air temperature separately.The existing sequential control strategies cause some problems of exceeding the cabinet air temperature up limit and deviating from the set average temperature easily under the dynamic conditions, and a new control strategy is necessary to avoid these problems.The objective of this study is to put forward a new control strategy which switch freezing/refrigerating cycle based on the cooling urgency of cabinet, and the new control strategy is analyzed to find the way to solve the two problems mentioned above under the dynamic conditions.Refrigerator with parallel dual evaporator in the new control strategy and existing three sequential control strategies are simulated numerically, the results show that the new control strategy does not have the problem of exceeding the cabinet air up temperature limit, and the deviation from the set average temperature is less than 0.6 K; the energy-saving effect can reach 8.5%, comparing with the existing sequential control strategies.

Key words: parallel dual evaporator, refrigerator, temperature, control strategy based on temperature priority level, sequential control strategy

中图分类号:

TK124

杨丛彦, 赵丹, 丁国良, 胡海涛. 基于温度优先级的并联双蒸发器冰箱的控制策略[J]. 化工学报, 2016, 67(S2): 202-207.

YANG Congyan, ZHAO Dan, DING Guoliang, HU Haitao. A control strategy based on temperature priority level for domestic refrigerator with parallel evaporators[J]. CIESC Journal, 2016, 67(S2): 202-207.

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基于温度优先级的并联双蒸发器冰箱的控制策略

A control strategy based on temperature priority level for domestic refrigerator with parallel evaporators

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