| 张 灿,姚嫣菲,徐 坚.混合式制冷制热系统控制方法研究[J].电力需求侧管理,2023,25(1):39-45 |
| 混合式制冷制热系统控制方法研究 |
| Novel control for hybrid refrigeration and heating system |
| 投稿时间：2022-11-03 修订日期：2022-12-06 |
| DOI：10.3969/j.issn.1009-1831.2023.01.007 |
| 中文关键词: 混合式制冷制热系统 负荷预测 健康评估 埋管换热器 变周期模型 |
| 英文关键词: hybrid refrigeration and heating system load forecasting health assessment buried tube heat exchanger variable cycle model |
| 基金项目:浙江省教育厅高等学校校企合作项目( FG2021005 ) |
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| 中文摘要: |
| 混合式制冷制热系统的控制难点在于如何合理切换冷热源。采用改进的DBN网络进行短期、中期和长期冷热负荷预测，并通过实测数据验证了模型的准确性。在负荷预测的基础上采用健康评估技术，对地源热泵的短期、中期和长期健康状态进行评估，并根据评估结果进行相应控制，从而实现长期稳定高效运行。最后，对比了两种不同控制方法的运行情况，采用新控制方法后，主机性能系数提高8.5%。结论验证，基于健康评估技术的控制方法有利于混合式系统的高效运行。 |
| 英文摘要: |
| The difficulty of hybrid refrigeration and heating system is how to switch the cold and heat source reasonably. An improved DBN network is used to predict short-term, medium-term and long-term cooling and heating loads, and the accuracy of the model is verified by experimental data. On the basis of load prediction, health assessment technology is used to evaluate the short-term, medium-term and long-term health status of ground sourceheat pump, and corresponding control is carried out according to the assessment results, so as to achieve long-term stable and efficient operation. Finally, the performance of the two different control methods is compared, and the coefficient of performance of the host is improved by 8.5% after adopting the new control method. In conclusion, the control method based on health assessment technology is beneficial to the efficient operation of hybrid system. |
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