Abstract: An obvious advantage by combining the uses of solar power generation and refrigeration systems is that the electric power available and the cooling demand can be highly matched in season and quantity. However,the performance and stability of a miniature refrigeration system are also easily affected by the change of environmental parameters. An experimental model of a miniature solar refrigeration system(MSRS) based on the combination of photovoltaic and battery was proposed. The experimental analysis of MSRS was carried out. The results operated continuously for 10 hours under a fine and cloudy day showed that the output of photovoltaic cells is 1.48kW·h power,of which 86% is supplied to the compressor,7% is stored to the battery,7% is consumed by the controller,however, while under a cloudy day,the photovoltaic cell outputs is 1.02kW·h power,which provides 73% of the energy for the system,the remaining 27% is provided by the battery. Under the condition using battery alone,the system has been running for 7,12 and 4 hours respectively within three days,the battery outputs 3.11kW·h power,about 93% of which is supplied to the compressor,the remaining 7% is consumed by the controller. The matching relationship between cooling capacity requirement with power available for the present system was analyzed,which provided the experimental basis for the application of MSRS in the future.

Key words: PV generation, miniature refrigeration system, design, solar energy, renewable energy

摘要： 将太阳能发电与制冷系统结合起来的一个明显优势是电能的取得和冷量需求在季节和数量上高度匹配，然而微小制冷系统的性能参数和稳定性也极易受环境参数变化的影响。本文提出了一种基于太阳能光伏发电与蓄电池相结合的微型制冷系统实验模型，并对微型太阳能发电制冷系统进行实验分析。结果显示，系统一天连续运转10h，在晴间多云天气下光伏输出1.48kW·h电能，其中86%供给压缩机，7%存入蓄电池，7%被控制器消耗；在多云转阴天气下，光伏输出的1.02kW·h电能只占系统总消耗的73%，余下的27%能量由蓄电池提供。在蓄电池单独测试条件下，系统在连续3天内分别运行了7h、12h和4h，蓄电池输出了3.11kW·h电能，其中的93%供给压缩机，余下7%被控制器消耗。另外结合实际情况分析了不同的冷量需求与系统的匹配关系，为以后微型太阳能发电制冷系统的应用提供了实验依据。

关键词: 光伏发电, 微小制冷系统, 设计, 太阳能, 再生能源