智能合约技术下微电网群电能分布式交易模型

配电网中大量独立决策的微电网参与电力市场竞争,使传统集中化交易模式面临决策耗时长、信任成本高和隐私安全等问题。针对这种情况,文章提出智能合约技术下的微电网群电能分布式交易模型。首先,构建了一个适应于电能参与分布式交易的电能交易谈判市场智能合约模型,以保障参与用户的利益。其次,为实现配电网的安全运行,提出了适用于智能合约的网络安全约束方法。最后,针对该交易模型改进了区块链的链下扩容架构,以保障区块链计算能力,同时确保所有历史数据存储的安全性和可追溯性。该方法在IEEE 33节点网络上进行了测试,结果表明所提电能分布式交易模型不会违反网络约束,并且市场参与主体能从交易中获利。

Distributed Transaction Model of Electricity in Multi-microgrid Applying Smart Contract Technology

A large number of independent decision-making microgrids participate in the power market competition in the distribution network, which makes the traditional centralized trading face the problems of long decision-making time, high cost of trust and privacy security. In the face of this situation, a distributed transaction model of electricity in multi-microgrid applying smart contract technology is proposed. Firstly, a smart contract model of electricity trading negotiation market is constructed to protect the interests of users. Secondly, in order to realize safe operation of the distribution network, a network security constraint method suitable for smart contract is proposed. Finally, according to the transaction model, the off-chain scalability architecture of the blockchain is improved to ensure the computing capability of the blockchain, and ensure the security and traceability of all historical data storage. The method is tested on the IEEE 33-bus network, and the results show that the proposed distributed transaction model does not violate the network constraints, and the market participants can profit from the transaction.