融合NILM的直接负荷控制安全机制研究

Research on direct load control security mechanism integrated with NILM

在智能电网信息物理融合框架下,针对用户对数据安全性,机密性和完整性的要求,采取一种应用于AMI的具有隐私保护功能的可恢复数据安全聚合方案,利用同态加密聚合方式保证用户用电数据的安全性,利用一种合适的编码机制保证用户用电数据的可恢复性;针对用户对直接负荷控制指令的可靠性和完整性的要求,利用ESAM芯片进行源认证,保证指令在传输过程中不被篡改;针对电力公司对用户可信度的要求,利用非侵入式负荷监测技术实现对用户可信度的验证,帮助电力公司核实用户正确响应电网直接负荷控制需求,简化了繁琐的用户可信度证明过程。

In the framework of smart grid cyber-physical system(CPS), a privacy-preserving data aggregation scheme using homomorphic encryption aggregation mode and a suitable encoding mechanism is adopted to achieve requirements of users for data security, confidentiality and integrity;Aiming at the reliability and integrity of direct load control instructions required by users, an ESAM chip is used for source authentication to ensure that the instruction is not tampered during transmission. Non-intrusive load monitoring (NILM) technology is adopted to help utilities to verify that the users can correctly response to the direct load control requirements of power grid, verifying credibility of users, which simplifies the tedious process of credibility certification.