适用于电力系统凸优化场景的能源区块链底层技术

A Novel Energy Blockchain Technology for Convex Optimization Scenarios in Power System

在分布式电源等新兴主体大量涌入电力系统的新形势下,区块链为解决不同主体间的信任问题提供了新的解决方案。然而,现有的区块链技术存在计算能力低、运行成本高、功能过于简单等问题,与高维度、大规模的电力系统优化运行难以兼容。该文利用电力系统优化问题求解困难、验证简单的特点,提出了一种以凸优化证明共识机制为核心的新型能源区块链底层技术,解决了将区块链应用于电力系统复杂优化场景的技术瓶颈。然后,以含高比例可再生能源配电系统分布式能源交易问题为例,阐述了新型能源区块链技术的应用方法。模拟测试表明,所提出的能源区块链底层技术可以满足配网分布式电源交易场景对安全性、开放性、吞吐量等性能的要求,为设计新一代能源区块链提供了参考。

Given that a large number of participates such as distributed energy resources are entering the power system,blockchain is a promising solution to ensure trust among participants.However,due to the low computing efficiency,high operating cost,and limited functions,existing blockchain technologies are not fully compatible with the need of optimization of high-dimensional and large-scale power systems.Given that power system operation usually includes solving optimization problems which are difficult to be solved but easy to be verified.This paper proposed a novel energy blockchain technology based on proof-of-optimization consensus algorithm.This consensus algorithm overcame the challenge of applying blockchain to complex optimization scenarios in the power system.Then,the proposed energy blockchain technology was demonstrated by taking the transactive distribution network with high penetration of renewable energy as an example.Simulation tests show that the proposed energy blockchain technology can meet the requirements of security,openness,and throughput in the distributed energy transaction scenario,providing a reference for the development of future energy blockchains.