多变量极值搜索控制在跨临界CO<sub>2</sub>中间过冷补气热泵系统中的应用

崔策; 宋昱龙; 殷翔; 曹锋

doi:10.7652/xjtuxb202012016

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多变量极值搜索控制在跨临界CO₂中间过冷补气热泵系统中的应用

更新时间：2025-07-09

- 多变量极值搜索控制在跨临界CO₂中间过冷补气热泵系统中的应用
- Application of the Multi-Variable Extreme Seeking Control to the Efficient Operation of the Sub-Cooler Vapor Injection Transcritical CO₂ Heat Pumps
- 西安交通大学学报 2020年54卷第12期页码：131-137
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2020-03-07。作者简介: 崔策(1995—),男,博士生;曹锋(通信作者),男,教授,博士生导师。基金项目: 国家科技重大专项资助项目(2017-Ⅲ-0010-0036);国家自然科学基金资助项目(51976153)
- DOI：10.7652/xjtuxb202012016
  中图分类号： TB657
- 网络首发：2020-12-10，
  
  纸质出版：2020
- 稿件说明：
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崔策, 宋昱龙, 殷翔, 等. 多变量极值搜索控制在跨临界CO₂中间过冷补气热泵系统中的应用[J]. 西安交通大学学报, 2020,54(12):131-137. DOI: 10.7652/xjtuxb202012016.

Application of the Multi-Variable Extreme Seeking Control to the Efficient Operation of the Sub-Cooler Vapor Injection Transcritical CO₂ Heat Pumps[J]. 2020, 54(12): 131-137. DOI: 10.7652/xjtuxb202012016.
崔策, 宋昱龙, 殷翔, 等. 多变量极值搜索控制在跨临界CO₂中间过冷补气热泵系统中的应用[J]. 西安交通大学学报, 2020,54(12):131-137. DOI: 10.7652/xjtuxb202012016. DOI：

Application of the Multi-Variable Extreme Seeking Control to the Efficient Operation of the Sub-Cooler Vapor Injection Transcritical CO₂ Heat Pumps[J]. 2020, 54(12): 131-137. DOI: 10.7652/xjtuxb202012016. DOI：

摘要

为了将跨临界CO

中间补气过冷热泵热水器的实时能耗控制在最低水平

将多变量极值搜索算法运用到跨临界CO

中间补气过冷系统的控制方案

将系统功耗设定为目标优化量

跨临界CO

系统的排气压力和中间压力设定为控制量。采用仿真软件Dymola(Modelica 3.2.3)和模型库ThermalSystems(TLK-thermo、GmbH)搭建了跨临界CO

中间过冷补气热泵热水器和相应控制系统的动态模型

在环境温度-12 ℃

进、出水温度为45 ℃、65 ℃工况下

给定系统初始状态点为排气压力12 MPa、中间压力7 MPa

经过极值搜索控制器作用后

排气压力与中间压力稳定控制在能够实现系统最低能耗的最优参数下

验证了该控制方案的有效性。为了验证该系统的可靠性

模拟过程中极值搜索系统在排气压力和中间压力的运行初值分别为10、6 MPa

10、8 MPa

14、6 MPa

14、8 MPa的情况下

系统均能到达并收敛到最低能耗点。

Abstract

The extreme seeking control(ESC)algorithm is utilized to realize the real-time minimization of the power consumption of the sub-cooler vapor injection transcritical CO

heat pump water heater system. The ESC takes the power consumption as the feedback

and the manipulated inputs are the discharge pressure and the medium pressure. A dynamic simulation model based on Dymold(Modelica 3.2.3)and ThermSystems(TLK-thermo

GmbH)is developed for a sub-cooler vapor injection transcritical CO

heat pumps to evaluate the proposed multi-variable ESC

method under the design condition. Given the initial state of the system with discharge pressure and medium pressure at 12 and 7 MPa

environmental temperature at -12 ℃

inlet and outlet water temperature at 45 and 65 ℃

both the discharge pressure and the medium pressure converge to the optimal operation parameters under the manipulation of the ESC controller. This study also simulates the operation results of the ESC at four different initial states(discharge pressure and medium pressure at 10 and 6 MPa

10 and 8 MPa

14 and 6 MPa and 14 and 8 MPa

respectively). The system can reach and converge to the lowest power consumption point of the system

and the reliability of the method is verified.

关键词

Keywords

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多变量极值搜索控制在跨临界CO2中间过冷补气热泵系统中的应用

Application of the Multi-Variable Extreme Seeking Control to the Efficient Operation of the Sub-Cooler Vapor Injection Transcritical CO2 Heat Pumps

DOI：10.7652/xjtuxb202012016

摘要

Abstract

关键词

Keywords

references

多变量极值搜索控制在跨临界CO₂中间过冷补气热泵系统中的应用

Application of the Multi-Variable Extreme Seeking Control to the Efficient Operation of the Sub-Cooler Vapor Injection Transcritical CO₂ Heat Pumps