Abstract: In order to control the temperature of solar cells in the process of photovoltaic power generation and improve the utilization efficiency of solar energy, a PV/TEG/PCM (photovoltaic/thermoelectric/phase change material) hybrid power generation system is designed. Using the constant temperature characteristics of PCM phase change process, the system temperature is controlled to improve the output power of solar cells and thermoelectric cells. The experimental research shows that the designed PV/TEG/PCM system prototype increases the output power of solar cell by 4.9% and the output power of thermoelectric cell reaches 4.2 mW compared with a single photovoltaic system.

Key words: Photovoltaic power generation, Thermoelectric power generation, Temperature control, Phase change materials, Photovoltaic/temperature difference/phase change system