智能电网中实时电价的抗时延攻击策略

A Defensive Strategy Against Delay Attacks on Real-Time Pricing in Smart Grids

智能电网在给人们带来巨大的效益的同时,也会产生严重的安全问题.其中,针对实时电价(RTP)的网络攻击值得重视,但是人们关注较少.针对时延攻击,为电力市场中用户与供应商的行为建立了动态模型,并在此基础上,利用鲁棒控制理论和李雅普诺夫函数法,提出了一种抵御时延攻击的电价策略.最后,通过一个数值示例验证了该策略的有效性.

The smart grid does provide people with enormous benefits, however, but it possibly leads to serious security problems. The cyber attack on real-time pricing （RTP） is of great significance, but peo- ple pay less attention to. Focused on delay attack, a dynamic model for behavior of both consumers and suppliers in electrical power markets was established. Based on the model, a defensive pricing strategy using robust control theory and Lyapunov function was put forward. At last, the effectiveness of the pro- posed strategy was validated through a numerical simulation example.