基于蒙特卡洛法的电力系统网络信息传输安全性评估

Security Evaluation of Power System Network Information Transmission Based on Monte Carlo Method

针对现有网络信息安全性评估方法容易受到无序网络信息的影响,导致评估结果不精准,提出了基于蒙特卡洛法的电力系统网络信息传输安全性评估方法。采用蒙特卡洛法提取电力系统网络信息,量化处理网络信息传输风险,通过信息传输不安全枚举法获取每个传输信息的停运或运行持续时间,再按照信息传输不安全状态排列传输线路的异常程度,构建评估指标,实现对电力系统网络信息传输安全性的评估。实验结果表明,该方法在稳定和非稳定性情况下能够安全传输全部信息,验证了该评估方法应用的合理性。

Aiming at the problem that the existing network information security evaluation methods are easy to be affected by disordered network information, which leads to inaccurate evaluation results, this paper proposes a security evaluation method for power system network information transmission based on Monte Carlo method. The Monte Carlo method is used to extract power system network information,quantify the risk of network information transmission, and obtain the outage or operation duration of each transmission information through the enumeration method of information transmission insecurity. The abnormal degree of transmission line is arranged according to the insecure state of information transmission, and the evaluation index is constructed to realize the security evaluation of power system network information transmission. The experimental results show that the method can safely transmit all information under stable and unstable conditions, which verifies the rationality of the application of the evaluation method.