Application Of Voltage Optimizer Solar Photovoltaic System

Voltage Optimiser is a distributed MPP solution at the panel level. Mismatched panels caused by shadows on the cells and other factors can lead to uneven losses in array power generation. Installers can solve the problem of panel mismatch through some installation techniques (such as designing around shadows, not installing at all, or installing smaller arrays), but this will result in reduced energy output.

Bypass diodes in the junction box short-circuit the entire row of cells and modules, which can theoretically reduce the impact of mismatch to some extent by bypassing the shadowed cells, thereby reducing the voltage loss through the module. But this is an imperfect solution. All panels are now equipped with bypass diodes, and although they can prevent the entire row of panels from completely collapsing, data shows that there will still be a lot of uneven losses in the amount of power obtained.

Voltage optimizer technology will soon be commercialized. They can maximize the amount of power generated by each panel while making the energy transmission efficiency of the PV system, recovering up to 57% of the power generation lost due to panel mismatch. The ideal solution is to implement MPP at the panel level. The voltage optimizer solves the problems inherent in centralized systems, increasing total power output by up to 37%, thereby successfully alleviating the problem of panel mismatch.