Solar Module Local Management Units for MPPT Optimization

The patent divides the solar array into multiple independent strings and further segments each string into individual modules, with each module equipped with its own local management unit. This segmentation allows each module to independently track its maximum power point, preventing weaker modules from limiting stronger ones, thereby significantly improving energy production while distributing control complexity across multiple simple local units rather than one complex central controller.

The patent implements dynamic switching of module connections to the string bus, where local management units continuously adjust which modules are connected based on real-time performance conditions. This dynamic reconfiguration allows the system to adapt to changing environmental conditions and module degradation patterns, maintaining optimal power extraction from each module independently, thus improving productivity without requiring complex centralized control algorithms.

The patent introduces local management units at the module level, segmenting the control function from the power flow path. Each local management unit independently monitors and controls its associated module, enabling weak modules to be isolated without affecting the operation of stronger modules. This segmentation approach optimizes power output by ensuring that no single weak module limits the entire string, while distributing system complexity across multiple simple, identical local units.

The local management unit acts as an intermediary between the solar module and the string bus, providing intelligent switching control. This intermediary component enables weak modules to be periodically disconnected from the string bus without requiring complex centralized control, thereby optimizing energy production while keeping individual unit complexity low. The intermediary absorbs the control complexity locally rather than propagating it system-wide.