考虑隐私保护的含电动汽车电网频率安全调度

Frequency Security Scheduling of Power Grid with Electric Vehicles Considering Privacy Protection

电动汽车集群作为用户侧的可调资源,在参与辅助调频时与电网的信息交互极易导致电动汽车用户信息泄露。为此,设计一种利用动态一致性算法保护用户隐私的含电动汽车电网频率安全调度策略。首先,通过一致性算法获取电动汽车的一致性信息替代电动汽车与电网或聚合器交互真实数据信息。其次,在分析攻击源获取用户信息方式的基础上,利用算法特性与本地干扰数据模糊电动汽车的信息。仿真实验表明,所提的方法能够实现含电动汽车电网频率安全的调度,同时保护用户隐私。

As the adjustable resource on the user side,the electric vehicle(EV)cluster easily leads to the leakage of EV user information when participating in the auxiliary frequency modulation and information interaction with power grid.To solve this problem,a frequency security scheduling strategy for power grid with EVs is designed by using a dy⁃namic consistency algorithm to protect the user privacy.First,the consistency information about EVs is obtained by the consistency algorithm to replace the real data information about EVs interacting with the grid or aggregator.Second,based on the analysis of how the attack source obtains the user information,the algorithm’s features and local interfer⁃ence data are used to blur the EV information.Simulation results show that the proposed method can achieve the fre⁃quency security scheduling of power grid with EVs while protecting the user privacy.