Multi-string inverter for solar inverter

Multi-string inverters take the advantages of centralized inverters and string inverters, avoiding their shortcomings, and can be applied to photovoltaic power stations of several kilowatts. Multi-string inverters include different individual power peak tracking and DC-to-DC converters. These DCs are converted into AC power by a common DC-to-AC inverter and connected to the grid. Different ratings of photovoltaic strings (such as: different rated power, different number of modules per string, different manufacturers of modules, etc.), photovoltaic modules of different sizes or different technologies, strings of different directions (such as (East, South, and West), different inclination angles or shading, can be connected to a common inverter, while each string works at their respective maximum power peaks. At the same time, the length of the DC cable is reduced, the shadowing effect between strings and the loss caused by the differences between strings are minimized.