Distributed photovoltaic information convergence and compression method and device based on cloud side-end cooperation

The invention provides a distributed photovoltaic information convergence and compression method and device based on cloud side-end cooperation. The method comprises the following steps: calculating a first weight of a current time slot through each photovoltaic terminal; acquiring a corresponding transparent transmission data packet and a non-transparent transmission data packet through the edge gateway; carrying out packaging and lossless compression on the unvarnished transmission data packet; carrying out correlation speculative priority-based compression on the non-transparent transmission data packet; uploading all the compressed data to a cloud end; decompression is carried out through the cloud, corresponding abstract data are generated, and the abstract data are issued to the edge gateways and the photovoltaic terminals; error vectors are obtained through calculation of the edge gateways and the photovoltaic terminals and uploaded to the cloud; the weight is selected through cloud computing, the weig