基于信息安全约束的可再生能源电网多主体投资风险评估方法

Research on risk assessment method of multi-agent investment in renewable energy power grid based on information security constraints

针对电网建设过程中不同利益主体投资风险评估问题,结合物理信息融合的可再生能源电网各主体投资供需平衡和数据流信息安全模型,研究基于信息安全约束的可再生能源电网多主体投资风险评估方法。首先建立包含电网投资运营商、可再生能源投资运营商和电力用户等不同主体的投资模式,然后针对电力物联网环境下信息系统的设备风险、数据风险、物理系统风险和信息安全风险在复杂信息物理融合系统中的作用机理,研究复杂投资模式下系统信息安全风险量化表征模型,并在此基础上建立基于结构熵的信息安全约束的可再生能源电网多主体投资动态风险评估模型。基于IEEE39节点建立可再生能源电网投资风险评估仿真系统,对文章提出的风险评估方法进行验证。仿真结果表明,基于信息安全约束的电网多主体投资风险评估方法,能够有效提升具有不确定性的电网投资规划鲁棒性。

Aiming at the problem of investment risk assessment of different stakeholders in the process of power grid construction,combined with the information investment of power system and the data flow security of power demand,this paper studies the multi-agent investment risk assessment method based on information security constraints.According to the requirements of the new power reform on grid investment construction and planning,the investment model including grid investment operators,new energy investment operators and power users is established.Aiming at the mechanism of equipment risk,data risk,system risk and communication risk in complex information physical fusion system,the system information security quantitative characterization method under the complex investment mode is expounded.And the quantitative information representation method of system information security under the complex investment mode is established.The information security constraint model of entropy is used to study the dynamic risk assessment method of multi-agent investment based on information security constraints.The simulation example shows the effectiveness of the proposed method for multi-agent investment risk assessment of power grid.