Risk Assessment of Power System considering the CPS of Transformers

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Zhou, Long^1 ; Peng, Zewu^1 ; Liu, Xindong^2 ; Li, Canbing^3 ; Chen, Can^4

Guangdong Power Grid Company, Information Department, Guangzhou Guangdong, China^1

Jinan University, College of Electrical and the Information, ZhuHai Guangdong, China^2

Hunan University, College of Electrical and Information, Changsha Hunan, China^3

Guangdong Power Grid Company, Zhuhai Power Supply Bureau, ZhuHai Guangdong, China^4

关键词: Bus systems;    Cyber security;    Differential protection;    Gas protection;    IEEE 118-bus system;    Power System;    Protection configurations;    Risk assessment framework;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012194/pdf
DOI  :  10.1088/1755-1315/113/1/012194

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper constructs a risk assessment framework of power system for device-level information security, analyzes the typical protection configuration of power transformers, and takes transformer gas protection and differential protection as examples to put forward a method that analyzes the cyber security in electric power system, which targets transformer protection parameters. We estimate the risk of power system accounting for the cyber security of transformer through utilizing Monte Carlo method and two indexes, which are the loss of load probability and the expected demand not supplied. The proposed approach is tested with IEEE 9 bus system and IEEE 118 bus system.