Real-time optimization of integrated subcooling transcritical CO2 heat pump water heater via phasor extreme seeking control (ESC)

被引：7

作者：

Cui, Ce ^{[1
]}

Ren, Jiahang ^{[1
]}

Rampazzo, Mirco ^{[2
,3
]}

Song, Yulong ^{[1
]}

Yin, Xiang ^{[1
]}

Wang, Wenyi ^{[1
]}

Cao, Feng ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, 28 Xianning West Rd, Xian 710049, Peoples R China

[2] Univ Padua, Dept Informat Engn, Via Gradenigo 6-B, I-35131 Padua, Italy

[3] Univ Padua, Dept Ind Engn, Via Gradenigo 6-A, I-35131 Padua, Italy

来源：

APPLIED THERMAL ENGINEERING | 2023年 / 232卷

基金：

中国国家自然科学基金;

关键词：

CO(2 )heat pump; Subcooling; Phasor estimator; ESC; Multi-variable; OPTIMAL DISCHARGE PRESSURE; SUPERCRITICAL CARBON-DIOXIDE; TEMPERATURE; SYSTEM; R134A;

D O I：

10.1016/j.applthermaleng.2023.121045

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This article presents a novel approach to real-time optimization of integrated subcooling transcritical CO2 heat pump water heater using the phasor ESC. Compared to the traditional dither-demodulation ESC, the phasor ESC shows improvements in optimization efficiency. A dynamic model of the heat pump system with high fidelity was developed in Dymola. Starting from a single phasor ESC for discharge pressure, we proposed practical guidelines for tuning the ESC parameters, such as the dither signal frequency, which significantly shortens the searching process by almost half. The effectiveness and adaptability of the multi-variable phasor ESC were demonstrated under various operating conditions, including time-varying disturbances such as ambient temperature. Simulation results showed that the phasor ESC outperforms both standard strategies and classic ESC in terms of performance.

引用

页数：14

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