电力信息物理融合系统数据区块链生成算法

随着电力信息物理融合系统(CPS)的发展,传统集中式数据采集架构运行存在透明度差、数据安全风险高等不足,利用区块链的去中心化、安全可信等特性,提出一种电力CPS数据区块链生成算法,以提升数据交互和使用过程的安全可信性。基于电力CPS数据的私有化特征,提出数据区块建链架构,并采用区块生成节点内排队机制和节点间按需路由数据交换机制提升CPS数据区块的建链速度,结合数据特征验证机制和私有化区块链的特性,确保数据能够实时传输、存储。采用5种不同IEEE标准算例对所提算法进行验证,结果表明所提算法具有更短的数据区块建链时间和更好的传输性能。

Data blockchain generation algorithm of cyber physical power system

With the development of cyber physical power system, the traditional centralized data acquisition architecture has the shortcomings of poor transparency, high data security risk, and so on, so based on the decentralization, security and credibility of blockchain, a data blockchain generation algorithm of cyber physical power system is proposed to improve the security and trusting degree in the data interaction and using process. The chain generation architecture of data block is established based on the privatization characteristic of cyber physical power system data. The chain generation rate is improved by the queuing mechanism in generating block nodes and the on-demand routing data exchange mechanism among nodes, which is combined with the characteristics of the data feature verification mechanism and the privatized blockchain to ensure the real-time transmission and storage of data. The proposed algorithm is verified by five IEEE standard examples with different scales and the simulative results show that the proposed algorithm has shorter data blockchain generation time and better transmission performance.