Abstract:

In view of the low efficiency of new energy utilization, slow information transmission, and poor network security in the current distribution network system, a blockchain-based future distribution network optimization planning model is proposed. Combining the characteristics of blockchain decentralization and information traceability, a blockchain-based future distribution network architecture is built. Considering the high penetration rate of renewable energy within the future distribution network, the multi-scenario analysis method is used to complete the design of the distribution network optimization planning model in multi-scenarios, which effectively solves the volatility problem caused by distributed power generation. The improved ant colony algorithm is adopted to dynamically process the pheromone heuristic factor and the expected heuristic factor to improve the global search capability of the algorithm. Based on this, by drawing on the advantages of distributed computing algorithms, the PoW consensus mechanism is combined with the idea of the distributed algorithm, which greatly improves the efficiency of the planning model solution and verification process. The analysis results of the calculation examples show that the proposed blockchain-based future distribution network optimization planning model can not only improve the utilization rate of new energy, but also ensure the safety and efficiency of the distribution network system.

Key words:

blockchain, future distribution network, optimization model, multi-scenario analysis method, consensus mechanism

摘要：

针对目前配电网系统存在新能源利用效率低、信息传输缓慢以及网络安全性较差等问题，提出基于区块链的未来配电网优化规划模型。结合区块链的去中心化以及信息可追溯等特征，构建基于区块链的未来配电网架构；考虑到未来配电网内部可再生能源的高渗透率，利用多场景分析法，完成多场景下的配电网优化规划模型的设计，使分布式电源所带来的波动性问题得到有效解决；采用改进的蚁群算法，将信息素启发因子和期望启发因子进行动态处理，达到提高算法全局搜索能力的目的；在此基础上，借鉴分布式计算算法的优势，将PoW共识机制与分布式算法思想相结合，使得规划模型求解以及验证过程的效率大大提升。算例分析结果表明，所提出的基于区块链的未来配电网优化规划模型不仅可以提高新能源的利用率，而且可以保障配电网系统的安全高效性。

关键词:

区块链, 未来配电网, 优化模型, 多场景分析法, 共识机制