基于边缘计算的新型电力系统分布式状态估计  

Distributed state estimation of new power system based on edge computing

作　　者：黄奕俊 肖健 彭依明 桂文豪 辛海滨 HUANG Yijun;XIAO Jian;PENG Yiming;GUI Wenhao;XIN Haibin(Guangzhou Power Supply Bureau of Guangdong Power Grid Co.,Ltd.,Guangzhou 510000,China;Dongfang Electronics Co.,Ltd.,Yantai 264000,China)

机构地区：[1]广东电网有限责任公司广州供电局,广东广州510000 [2]东方电子股份有限公司,山东烟台264000

出　　处：《电力科学与技术学报》2025年第1期77-84,112,共9页Journal of Electric Power Science And Technology

基　　金：广东电网有限责任公司广州供电局生产技术改造项目(030108GS62220005)。

摘　　要：可再生能源发电大量并入新型电力系统使运行数据呈现级数增长。由于可再生能源时序波动剧烈、扰动量大,使新型电力系统中涌现大量的不良数据和恶数据,并且这些运行数据呈现分布式管理方式,使传统集中式的状态估计方法在计算精度、计算速度等方面陷入困境,为此,提出基于边缘计算的新型电力系统分布式状态估计。首先,给出传统集中式状态估计方法的不足,设计以协调变量为核心的分布式状态估计私密性的计算思路;其次,在传统非线性状态估计模型基础上,提出改进型的线性状态估计方法以提高计算速度;随后,提出边缘计算的多目标蚁群分布式求解算法,实现所提出的分布式状态估计;最后,以某实际新型电力系统融合的IEEE 57系统为例,对所提状态估计算法进行仿真验证,结果表明所提方法的精确性和高计算速度。The large-scale integration of renewable energy generation into new power systems has led to an exponential increase in operational data.Due to the severe temporal fluctuations and large disturbances of renewable energy,a large amount of bad and malicious data can emerge in the new power system.In addition,these operational data are managed in a distributed manner,leading to the poor performance of traditional centralized state estimation methods in calculation accuracy,speed,and other aspects.To solve this problem,distributed state estimation of new power systems based on edge computing is proposed.Firstly,the shortcomings of traditional centralized state estimation methods are pointed out,and a calculation approach for privacy in distributed state estimation is designed,with coordinated variables as the core.Secondly,based on traditional nonlinear state estimation models,an improved linear state estimation method is proposed to improve computational speed.Next,a multi-objective ant colony distributed algorithm based on edge computing is proposed to realize distributed state estimation.Finally,by taking the IEEE57 system integrated into a real-life new power system as an example,the proposed state estimation algorithm is simulated and verified,and the results confirm its accuracy and high computational speed.

关 键 词：边缘计算 分布式 状态估计 新型电力系统 

分 类 号：TM76[电气工程—电力系统及自动化]