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| 可编程双模冷却条件下光伏-热电一体化自供电系统研究 |
| Research on integrated photovoltaic and thermoelectric self-power supply system under programmable dual-mode cooling |
| 投稿时间：2025-02-13 |
| DOI：10.3969/j.issn.1005-5630.202502130022 |
| 中文关键词: 能量回收 双模式光伏冷却 可编程智能切换 自供电 |
| 英文关键词:energy recovery dual mode photovoltaic cooling programmable intelligent switching self-powered |
| 基金项目:国家自然科学基金（62474112）；上海市浦江人才计划（23PJD066） |
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| 中文摘要: |
| 针对光伏板温度过高易造成发电效率降低并引起热量浪费问题，提出了一种集成光伏(photovoltaic，PV)和热电发生器(thermoelectric generator，TEG)一体化能量回收系统。该系统设计了主动和被动双模式光伏冷却策略，实现冷却模式的可编程智能切换。采用模糊PID控制技术动态调整光伏板的温度，使其工作在最佳温度范围内，降低功率损失。此外，系统利用相变储能和辐射冷却技术，以最大温差驱动TEG全天候自供电。实验结果表明，相较于无冷却系统，所提系统PV的温度降低7.4 K，功率提升13.4%；系统TEG的最大温差高达5.5 K，功率密度达到134.68 mW/m2，即使在夜间，仍可提供7.1 mW/m2的稳定输出电能。本文工作可以为电子装备的自供能提供参考。 |
| 英文摘要: |
| Aiming at the problem that the photovoltaic panel temperature is too high, which is easy to reduce the power generation efficiency and cause heat waste, an integrated energy recovery system with photovoltaic (PV) and thermoelectric generator (TEG) is proposed. In this system, active and passive dual mode PV cooling strategies are designed to realize programmable intelligent switching of cooling modes. Fuzzy PID control technology is used to dynamically adjust the temperature of photovoltaic panels to make them work in the best temperature range and reduce power loss. In addition, the system uses phase change energy storage and radiation cooling technology to drive TEG all-weather self-powered with maximum temperature difference. The experimental results indicate that a reduction of 7.4 K in the temperature of the PV module is achieved, accompanied by an enhancement of 13.4% in power output within the proposed system, in comparison to a system without cooling. Furthermore, a maximal temperature difference of 5.5 K is demonstrated by the TEG system within this framework, thereby achieving a remarkable power density of 134.68 mW/m2. Particularly significant is the capability for a stable power delivery of 7.1 mW/m2 during nocturnal periods to be sustained by the system. The work in this paper can provide reference for the self-supply of electronic equipment. |
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