The “Cloud-Edge-End” system of the Power Internet of Things establishes a plug-and-play architecture for intelligent terminals: the terminal layer reports device information to the edge layer and the cloud layer, and receives commands; after networking, the edge computing nodes register with the cloud host and report identity information; the cloud layer synchronizes identity information to the business application layer. The edge gateway is a critical device deployed at the access points of emerging market entities such as substations, distribution stations, and virtual power plants, responsible for collecting local grid operation data and uploading it to the edge cluster, supporting frequency regulation, load balancing, and other operational instructions. To address the issue of protocol heterogeneity (such as Modbus, IEC104, IEC61850) and inconsistent data formats in the context of distributed renewable energy, this study proposes a processing method based on data format integration, achieving data standardization through integrated conversion. By designing device models using data matching algorithms, we establish a mapping relationship between the new model and the original protocol format, generating access protocol configuration files, ultimately achieving unified data processing and rapid access, with containerized deployment. This further reduces development costs and enhances maintainability. This technology realizes rapid plug-and-play capabilities for edge gateways, improving data access efficiency and processing accuracy, thereby supporting data-driven decision-making.