The application discloses a
photovoltaic inverter layered distributed installation
layout optimization method convenient for operation and maintenance and upgrading, constructs a three-layer linkage architecture of a
centralized management layer, a regional
control layer and a device execution layer, the regional
control layer automatically scans a
photovoltaic inverter NFC electronic tag through a dynamic
topology identification mechanism, realizes plug-and-play of the device and second-level topology updating, a master and standby regional
control unit adopts an incremental snapshot synchronization technology, completes non-
perception switching within
millisecond-level time, and ensures continuity of control instructions, the
system adopts an operation and maintenance efficiency index dynamic optimization
algorithm, forms an adaptive optimal
layout scheme, a five-dimensional health degree evaluation model is constructed by combining DC side attenuation and MPPT deviation, early warning and pre-maintenance of
device failure are realized, a time-space separation gray
upgrade strategy combined with power generation power prediction is deployed, batch upgrading is realized, and automatic function
verification and
rollback are realized, and zero risk in the upgrading process is ensured. The application solves the technical problems of static rigidity of a traditional
layout and concentrated upgrading risks.