新型高安全性智能电网电能终端自动检测系统的设计

Design of the Novel High Security Automatic Detection System for Power Terminal of Smart Grid

针对国家智能电网中现有的电能终端自动检测系统安全性不高等问题,设计了一种新型的加密器,以提高电能终端自动检测系统的信号安全性。考虑到检测系统的信号传输大的特点,采用了最新型的椭圆曲线密码系统,在具体的电能终端自动检测系统上进行了可行性研究。首先提出了一种新型的基于分布式算法的滤波器结构,然后在该滤波器的基础上进行了前端系统的设计。除此之外,椭圆曲线密码系统中采用了一种基于有限域GF(2m)的乘法器。该乘法器以脉动结构的形式,实现了高速运行。整个椭圆曲线密码系统由乘法器、加法器等运算单元组成,并在基于FPGA的平台上实现,取得了更好的应用效果。实测结果验证了该椭圆曲线系统在自动检测系统中的可行性,该设计可以推广应用到大范围电能检测系统。

Based on the fact that automatic detecting systems of power terminal of smart State Grid are in a low security status,a novel cryptosystem is designed to enhance the data security of the automatic detecting systems of power terminal.Considering the feature of the massive data transmission of the detecting system,the latest elliptic curve cryptosystem is employed and the implementation research is conducted on specific automatic detecting system.Firstly,the novel structure of filter based on distributed arithmetic（DA） is proposed,and then based on this filter,a front-end system is designed.In addition,the multiplier based on finite domain GF（2^m） is added in elliptic curve cryptosystem.With the systolic structure,the multiplier implements the effect of high speed operation.The whole cryptosystem is consisting of multiplier,adder,and other computation units,and implemented on the platform based on FPGA,to get better application effections.The testing results validate the feasibility of the proposed cryptosystem in detecting system,and it can be promoted to widerange of electric energy detecting systems.