On IEC 61850 communication networks in smart grids system: Methodology of implementation and performances analysis on an experimental platform

2021 ◽  
Author(s):  
Kaoutar Saadi ◽  
Rosa Abbou
Keyword(s):  
Communication Networks ◽  
Smart Grids ◽  
Iec 61850 ◽  
Experimental Platform ◽  
System Methodology

scholarly journals Certificate Based Authentication Mechanism for PMU Communication Networks Based on IEC 61850-90-5

Electronics ◽  
2018 ◽  
Vol 7 (12) ◽  
pp. 370 ◽  
Author(s):  
Shaik Farooq ◽  
S. Hussain ◽  
Siddavaram Kiran ◽  
Taha Ustun
Keyword(s):  
Communication Networks ◽  
Smart Grids ◽  
Data Communication ◽  
Measurement Unit ◽  
Monitoring And Control ◽  
Authentication Code ◽  
Iec 61850 ◽  
Authentication Mechanism ◽  
Critical Requirement ◽  
Grid Operation

Smart grids are becoming increasingly popular thanks to their ability to operate with higher precision and smaller margins. Dynamic operation control in smart grids can be achieved with phasor measurement unit (PMU) based wide area monitoring and control systems. The data communication requirements for the PMU based applications are well addressed in the IEEE C37.118.2 and IEC 61850-90-5 standards. Due to the higher probability of cyberattacks and the scale of their impact, data security is a critical requirement in PMU communication networks. The IEC 61850-90-5 communication standard addresses this security concern and proposes the HMAC (hash based message authentication code) with key distribution center (KDC) scheme for achieving information authentication and integrity. However, these IEC 61850-90-5 security recommendations do not consider the mechanism for attacks such as man-in-the-middle (MITM) attacks during KDC key exchanges. MITM attacks can be easily implemented and may have a large impact on the grid operation. This paper proposed an explicit certificate-based authentication mechanism to mitigate MITM attacks in PMU communication networks. The proposed certificate-based authentication mechanisms were implemented in real-time using Python-based terminals to observe their performance with different signature algorithms.

Medições em sistemas de automação de subestação (SAS): uma abordagem de gerência de redes

2013 ◽  
Vol 4 (2) ◽  
pp. 171-184
Author(s):  
Elza Tânia Moura de Sousa ◽  
Carlos Renato Lisboa Francês ◽  
Edvar Da Luz Oliveira
Keyword(s):  
Communication Networks ◽  
Smart Grids ◽  
Iec 61850

Este artigo apresenta medidas do workload obtidas em uma subestação que se encontra em meio à implantação do padrão IEC 61850 - Communication Networks and Systems in Substations, considerado vital para as redes inteligentes no domínio elétrico ou smart grids. A carga real auxiliará na avaliação dos requisitos da norma e planejamento de capacidade para processos decisórios. É necessário o monitoramento contínuo da rede de comunicação que atende o SAS (Sistema de Automação de Subestação) com suas especificidades, avanços e complexidades em vista de novos requisitos de gerenciamento e segurança no que tange à disponibilidade e confiabilidade. Busca-se contribuir com a análise de carga de dados operacionais com este enfoque integrado da rede de comunicação e a rede de supervisão em uma Subestação do Setor Elétrico.

Automatic transfer switch using IEC 61850 protocol in smart grids

2014 ◽  
Author(s):  
Aurel Boteza ◽  
Radu Tirnovan ◽  
Ioan Boiciuc ◽  
Silviu Stefanescu ◽  
Dan Rafiroiu
Keyword(s):  
Smart Grids ◽  
Iec 61850

Vulnerabilities and Threats in Smart Grid Communication Networks

2021 ◽  
pp. 1508-1535
Author(s):  
Yona Lopes ◽  
Natalia Castro Fernandes ◽  
Tiago Bornia de Castro ◽  
Vitor dos Santos Farias ◽  
Julia Drummond Noce ◽  
...  
Keyword(s):  
Smart Grid ◽  
Communication Networks ◽  
Smart Grids ◽  
Electrical Network ◽  
Physical Security ◽  
Smart Meters ◽  
Interconnected System ◽  
Other Information ◽  
Data Volume ◽  
Active Attacks

Advances in smart grids and in communication networks allow the development of an interconnected system where information arising from different sources helps building a more reliable electrical network. Nevertheless, this interconnected system also brings new security threats. In the past, communication networks for electrical systems were restrained to closed and secure areas, which guaranteed network physical security. Due to the integration with smart meters, clouds, and other information sources, physical security to network access is no longer available, which may compromise the electrical system. Besides smart grids bring a huge growth in data volume, which must be managed. In order to achieve a successful smart grid deployment, robust network communication to provide automation among devices is necessary. Therefore, outages caused by passive or active attacks become a real threat. This chapter describes the main architecture flaws that make the system vulnerable to attacks for creating energy disruptions, stealing energy, and breaking privacy.

scholarly journals Performance Analysis of Distributed Estimation for Data Fusion Using a Statistical Approach in Smart Grid Noisy Wireless Sensor Networks

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 567 ◽  
Author(s):  
Chatura Seneviratne ◽  
Patikiri Arachchige Don Shehan Nilmantha Wijesekara ◽  
Henry Leung
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Smart Grid ◽  
Communication Networks ◽  
Smart Grids ◽  
Measurement Errors ◽  
Power Grid ◽  
Distributed Estimation ◽  
Wireless Sensor ◽  
Grid Infrastructures

Internet of Things (IoT) can significantly enhance various aspects of today’s electric power grid infrastructures for making reliable, efficient, and safe next-generation Smart Grids (SGs). However, harsh and complex power grid infrastructures and environments reduce the accuracy of the information propagating through IoT platforms. In particularly, information is corrupted due to the measurement errors, quantization errors, and transmission errors. This leads to major system failures and instabilities in power grids. Redundant information measurements and retransmissions are traditionally used to eliminate the errors in noisy communication networks. However, these techniques consume excessive resources such as energy and channel capacity and increase network latency. Therefore, we propose a novel statistical information fusion method not only for structural chain and tree-based sensor networks, but also for unstructured bidirectional graph noisy wireless sensor networks in SG environments. We evaluate the accuracy, energy savings, fusion complexity, and latency of the proposed method by comparing the said parameters with several distributed estimation algorithms using extensive simulations proposing it for several SG applications. Results prove that the overall performance of the proposed method outperforms other fusion techniques for all considered networks. Under Smart Grid communication environments, the proposed method guarantees for best performance in all fusion accuracy, complexity and energy consumption. Analytical upper bounds for the variance of the final aggregated value at the sink node for structured networks are also derived by considering all major errors.

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