Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for defending false-data injection attack in direct-current state estimation of electrical power system

A state estimation and power system technology, applied in the transmission system, digital transmission system, information technology support system, etc., can solve the problems of not considering the influence of the power system, bad data detection and identification, etc., and achieve the effect of improving accuracy

Active Publication Date: 2012-06-27
XI AN JIAOTONG UNIV
View PDF1 Cites 40 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, most of the research on the security of power system state estimation data focuses on the detection and identification of bad data, and does not take into account the impact of malicious network attacks on power system state estimation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for defending false-data injection attack in direct-current state estimation of electrical power system
  • Method for defending false-data injection attack in direct-current state estimation of electrical power system
  • Method for defending false-data injection attack in direct-current state estimation of electrical power system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention is described in further detail below in conjunction with accompanying drawing:

[0027] refer to figure 1 , the steps of the method for defending against false data injection attacks in power system DC state estimation designed by the present invention are as follows:

[0028] 1) Obtain system network parameters: Obtain system network parameters from the energy management system, including the branch number of the transmission line, the number of the first node and the last node, series resistance, series reactance, parallel conductance, parallel susceptance, etc.

[0029] 2) Acquisition system real-time measurement data: the data acquisition and monitoring control system collects the real-time measurement data z=(z of the system collected by the sensor every 2-4 seconds 1 ,z 2 ,...,z m ) T is sent to the state estimator in the energy management system, where z i ∈R(i=1, 2,..., m) represents the node voltage amplitude V i , Active power P inj...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for defending false-data injection attacks in the direct-current state estimation of an electrical power system, which belongs to the technical fields of electrical-power system safety and control and comprises the following steps of: estimating the real-time state of a direct-current system by a weighted least square method, and filtering measuring noise and random disturbance; processing a state-estimating result by a maximum standard residual-error detecting method, and detecting and identifying bad data in quantity measurement; and calculating the sensor quantity-measuring combination which is most easily destroyed by the false-data injection attacks by a heuristic algorithm, carrying out encryption protection for a group of sensors, and blocking the false-data injection attacks from occurring from a source. The method can be used for accurately and rapidly defending the false-data injection attacks in the state estimation of the electrical power system, and the state-estimating accuracy and safety of the electrical power system are improved.

Description

Technical field: [0001] The invention relates to a method for defending against false data injection attacks in power system DC state estimation, and belongs to the technical field of power system safety and control. Background technique: [0002] The power system is an important national infrastructure, and its safe and stable operation plays a key role in social stability and the normal development of the national economy. With the increasing complexity of power systems and the promotion of smart grids, in order to make them operate safely and stably, the real-time status of monitoring and control systems cannot be ignored. The energy management system in the control center estimates the real-time state of the system based on the received sensor measurement data, and makes real-time control decisions using the estimated results and control algorithms. [0003] In addition to normal measurement noise, the measurement data of power system state estimation also contains rand...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02J3/00H04L9/00
CPCY04S40/24Y04S40/20
Inventor 杨清宇杨洁安豆
Owner XI AN JIAOTONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com