Solar inverters generate heat during operation due to energy losses in their internal power devices during the conversion of electrical energy, which are released in the form of thermal energy. If this heat is not dissipated in a timely manner, the temperature of the inverter will continue to rise.

Excessive temperature can have a negative impact on the performance and lifespan of inverters. On the one hand, an increase in temperature can lead to a decrease in the performance of power devices, a decrease in conversion efficiency, and thus affect the overall power generation efficiency of the solar power generation system. On the other hand, long-term high-temperature operation will accelerate the aging of components, increase the probability of faults, and shorten the service life of inverters.