基于区块链的多微电网交易机制建模与优化

Modeling and optimization of multi-microgrid transaction mechanism based on blockchain

区块链技术为微电网电能交易提供保障,但由于分布式可再生能源发电不稳定,微电网内部电能交易并不能实现可再生能源的高效消纳。为此,结合多微电网电能交易场景,设计了基于区块链的多微电网电能交易架构,以最小化微电网用电成本为目标建立微电网电能出力模型,结合双边拍卖提出了多微电网交易优化算法及其智能合约设计。算例表明,提出的交易机制可以有效降低微电网综合用电成本,与区块链结合可以进一步保证微电网之间电能交易的安全性,具有实用价值。

Blockchain technology provides protection for microgrid power transactions,but due to the unstable power generation of distributed renewable energy,the internal power transactions of microgrids cannot achieve the efficient consumption of renewable energy.To this end,a blockchain-based multi-micro-grid power transaction architecture was designed,and a micro-grid power output model was established for minimizing the cost of micro-grid electricity.Combined with bilateral auctions,a multi-micro-grid transaction optimization algorithm and its smart contract design were proposed.The examples show that the proposed transaction mechanism can effectively reduce the comprehensive electricity cost of the microgrid,and the combination with the blockchain can further ensure the security of the electricity transaction between the microgrids,which is of practical significance.