An optimizer for solar string power generation systems and a method thereof

An optimizer for solar string power generation system comprising:

• An array of strings of solar panels where at least a part of said solar panels are connected in series in said strings, and wherein said strings are connected in parallel to form said array of strings of solar panels;
• A DC bus, connected to said array of strings;
• A solar inverter, connected, at its input, to said DC bus, for converting the solar DC power, from said array of strings, to AC power;
• an Injection Circuit (IC), connected to at least one of said strings wherein the output of said IC is connected to said DC bus of said solar inverter and said array of strings comprising:
• an MPPT mechanism, for finding the MPP of said connected at least one string;
• a DC/DC converter, for converting at least a part of the power of said connected at least one string;
• and
• wherein said DC/DC converter, of said IC, converts only a part of the power of said at least one string, connected to said IC, when said at least one string is impaired, for compensating for the relative voltage difference between the voltage MPP, of said impaired string, and the MPP voltage of said DC bus of said solar inverter and said array of strings.