微型电网中基于联盟链的需求侧竞价方案

Consortium Blockchain Based Demand Response in Microgrids

需求响应是解决微型电网电力供求平衡问题的有效方案。然而传统的中心化管理方案不能很好适用于具有分布式特点的微型电网,存在中心难以被信任、单点失效等问题。提出一种基于联盟区块链的需求响应管理框架,设计具有多账本存储、域内节点背书特点的联盟链。该框架通过不可篡改的联盟链存储需求响应记录,并利用自我强制执行的智能合约对各过程进行计算,可以有效加强微型电网需求响应中多方之间的相互信任。此外,在该框架之上,提出基于智能合约的去中心化需求侧竞价方案,并采用二分法实现分布式竞价的快速收敛。

Demand response was effective to match the demand for power with the supply in microgrids.But the traditional scheme could not apply to microgrids with distributed feature appropriately,because of untrusted center and single point failure.Therefore,a novel consortium blockchain based architecture was proposed for decentralized demand response management.Multi-ledger and local nodes endorsement were adopted to save computing and storage resource.With trusted blockchain and self-enforcing smart contract,energy entities could trust each other in demand response management.Based on proposed architecture,a decentralized demand side biding scheme with smart contract was investigated,which implemented exponentially fast convergence with bisection method.