Return to the institutional site
    • español
    • English
View Item 
  •   Séneca Home
  • TRABAJOS DE GRADO
  • Doctorado
  • View Item
    • español
    • English
  •   Séneca Home
  • TRABAJOS DE GRADO
  • Doctorado
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Browse

All of SénecaCommunities and CollectionsAuthorsTitlesSubjectsTypes of contentsAuthor profilesThis CollectionFaculties and ProgramsAuthorsTitlesSubjectsTypes of contents

My Account

LoginRegister

Statistics

View Usage Statistics

Information of interest

What is SénecaHow publishGuidelinesContact us

Distributed control for the smart grid with communication constraints and cyber-security

RISMendeley
URI: http://hdl.handle.net/1992/7665
Author: Giraldo Trujillo, Jairo Alonso
Director(s)/Advisor(s): Quijano Silva, NicanorUniandes authority; Cárdenas, Alvaro; Gauthier Sellier, AlainUniandes authority; Mojica, Eduardo
Publication date: 2015
Content type: doctoralThesis
Keywords:
Procesamiento electrónico de datos - Procesamiento distribuido - Investigaciones
Redes de información - Medidas de seguridad - Investigaciones - Métodos de simulación
Grids computacionales - Investigaciones
Abstract:
In the last few years networked control systems (NCS) have attracted the attention of the research community due to wide number applications that include communication networks into the feedback control loop to connect spatially distributed elements. Sensor measures and control actions are sent through private or shared communication links, offering many advantages such as reduced system wiring, low installation and maintenance costs, and increase on flexibility and adaption capability. One of the main examples of an NCS is the smart grid, which uses the flow of information of the different states of the power network to take smart decisions and improve the reliability and minimize power losses. In this work, we focus our attention on controlling physically isolated elements in the power grid, e.g., microgrids. We propose a control strategy based on the consensus algorithm that uses the frequency information transmitted through the communication network in order to assure frequency synchronization of several isolated microgrids. We use linear and nonlinear models in order to verify the capabilities of our controller, and we show that, under certain conditions, synchronization is achieved independently of the sampling period at which information is transmitted. Sending information through communications channels makes the system vulnerable to cyber-attacks, where an adversary may tamper sensors or actuators in order to access to private information and impact the power system, causing economical losses or even blackouts. A direct consequence of the sampled information property of our proposed controller is data minimization, which allows to improve privacy in the smart grid, and decrease or hide information from adversaries. Moreover, we study false data injection attacks, and we show how some detection mechanisms can minimize the impact of undetected attacks. We study the effects of injecting false information in a higher level control system, i.e., demand response and real time pricing, and we analyze the impact of injecting attacks at a certain frequency using sensitivity analysis. All our results are verified via simulation
Show full item record

Files in this item

Thumbnail
Name:
u714351.pdf
Size:
4.855Mb
Format:
PDF

Statistics

View Usage Statistics
Donaciones

Los Andes

Donaciones


Icono Repositorio

Los Andes

Repositorio


Icono Egresados

Los Andes

Egresados


Icono Eventos

Los Andes

Eventos



Cra 1 Nº 18A - 12

Bogotá - Colombia

Postal code: 111711

+(571) 339 49 99

+(571) 339 49 49


Normatividad Institucional

  • Actos internos e incremento
  • Bienestar
  • Derechos pecunarios
  • Estatuto docente
  • Estatuto general
  • Ley de transparencia
  • Porcentaje de incremento
  • Reglamentos de estudiantes
  • Uso de datos personales

Enlaces Rápidos

  • ATC (Acceso Temporal al Campus)
  • Universidad de los Andes Caribe
  • Convivencia y transparencia
  • Educación Continuada
  • Emergencias: Extensión 0000
  • Nuestros profesores
  • Mapa del sitio
  • Multimedia
  • Noticias
  • Preguntas frecuentes

Redes sociales

  • Facebook
  • twitter
  • youtube
  • linkedin
  • instagram
  • snapchat
  • vimeo
  • google

Directorio de redes