Dynamic Partitioning Technology of Regional Chain for Power Trading System

In the power trading system, the traditional centralized management model faces problems such as security, transparency and efficiency. This paper further understands and explains the blockchain dynamic partitioning technology, which can improve the performance and security of the power trading system. First, this paper builds a blockchain architecture and implements smart contracts and transaction rule definitions on the Ethereum platform to automatically execute processes. Then, this paper designs a dynamic partitioning mechanism, analyzes the characteristics of transaction data, uses the K-means algorithm to partition transaction data according to frequency and node load, continuously monitors node status in real time, and dynamically adjusts the partitioning mechanism to balance the load. After that, an event-driven model is used to trigger adjustments every time a transaction occurs so that the system can respond quickly to changes. Experimental results show that by using this technology, the system can reach 624TPS, and the transaction confirmation time remains at a baseline level of 0.8 seconds. Blockchain dynamic partitioning technology brings innovative solutions to the power trading system and effectively addresses the challenges brought by the existing system.