基于区块链的电网工程造价数据可靠性评估及差异化管理

Reliability evaluation and differential management of power grid project cost data based on block chain

提出基于区块链的电网工程造价可靠性评估和管理方式,区块链可有效解决造价数据不完整、可靠性低、过程管控不严、事后无法追溯等问题。分析了区块链在电网工程数据可靠性管理中应用的可行性,研究了电网工程造价数据链结构。根据电网工程造价数据的变动性特点,建立造价数据可靠性分析的灵敏度模型,可确定哪些随机因素对造价变化产生影响以及影响程度。提出基于区块链的电网工程造价数据的可靠性差异化管理流程,通过改进差分进化算法可提高造价数据可靠性水平及管理效率。计算结果表明,电网造价数据的可靠性评估及差异化管理方式可提高整个电网工程的经济性。

This paper proposes a reliability evaluation and management method of power grid construction cost based on block chain.The characteristics of block chain can effectively solve the problems of incomplete cost data,reliability,process control and traceability of power grid construction.The feasibility of applying block chain to reliability management of power grid engineering data is analyzed,and the cost data chain structure of power grid construction is researched.According to the variable characteristics of cost data of power grid engineering,the sensitivity model for reliability analysis of cost data is established,which can determine the influence degree of random factors on cost change.The reliability differential management flowchart of power grid project cost data based on block chain is proposed.The improved differential evolution algorithm can reduce the overall cost fluctuation risk level,perform different data management for different project costs.The analysis of engineering examples shows that the proposed method can improve the reliability and credibility of the cost data,proactively respond to the risk of cost changes,and improve the economy of the whole power grid project.