一种针对电–热综合能源系统经济调度的DoS最优攻击策略

An Optimal DoS Attack Strategy Against the Economic Dispatch for Electric-thermal Integrated Energy System

近年来,随着电网智能化水平不断提高,具备灵活性高、兼顾信息隐私性和鲁棒性强等诸多优点的分布式经济调度方法受到了广泛关注。然而,这也极大增加了电力工业调度系统受到网络攻击的风险。在此背景下,该文研究考虑通信网络中存在随机拒绝服务(denial-of-service,DoS)攻击的电–热综合能源系统(integrated electrical and heating systems,IEHS)分布式经济调度问题(economic dispatch problem,EDP)。首先,对DoS攻击原理进行分析,并建立相应的DoS攻击模型。其次,针对现有的分布式经济调度算法,对其在不同DoS攻击场景下的性能表现和收敛条件进行完备的理论分析。而后,根据分析的结果,构建考虑有限攻击资源下的最优攻击策略模型,并提出一种穷举搜寻算法用于确定最终的攻击策略。最后,在39-32节点的IEHS仿真系统上验证对DoS攻击影响IEHS经济调度的理论分析的正确性和所提最优攻击策略求解算法的有效性。

In recent years, with the continuous improvement of the intelligence level of power grid, the distributed economic dispatch with high flexibility, strong robustness and information privacy, has been widely concerned. However, it also greatly increases the risk of cyber-attacks on power industry dispatching system. Under this background, this paper investigated the distributed economic dispatch problem considering the Denial-of-Service(DoS) attack in the communication network of integrated electrical and heating systems(IEHS). First, this paper analyzed the DoS attack principle and established the DoS attack model. Then, the performance and convergence conditions of the existing distributed economic dispatch algorithm under different DoS attack scenarios were analyzed theoretically. Then, based on the analysis results, the optimal attack strategy model considering limited attack resources was constructed, and a exhaustion search algorithm was proposed to determine the optimal attack strategy. Finally, the correctness of the theoretical analysis on the influence of DoS attack on IEHS economic dispatch, as well as the effectiveness of the algorithm to solve optimal attack strategy proposed in this paper, was verified on the IEHS simulation system with 39-32 nodes.