Test method for studying the effect of environment on the performance of solar photovoltaic inverter

The work environment for solar photovoltaic power generation is quite bad, and the index of safety performance of grid photovoltaic (PV) power inverter, which is an important part of the photovoltaic power generation system, must meet the technical requirements in all kinds of harsh dry, cold, and humid environment. In order to assess the safety performance of the inverter in environment, environment test platform was built; the requirements for standard low temperature, high temperature, and humidity as well as their difference at home and abroad were studied; through an experiment, the working situation of inverter in different temperature was studied, and the temperature rise of key components was monitored. Test results show that cold start and dry continued operation can provide a reasonable and harsh assessment of the safety performance of inverter.