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.

scholarly journals Conformance Testing and Analysis of Synchrophasor Communication Message Structures and Formats for Wide Area Measurement Systems in Smart Grids

2017 ◽  
Vol 6 (2) ◽  
pp. 106
Author(s):  
Adeyemi Charles Adewole ◽  
Raynitchka Tzoneva
Keyword(s):  
Power Systems ◽  
Power System ◽  
Communication Networks ◽  
Smart Grids ◽  
Data Communication ◽  
System Stability ◽  
Area Measurement ◽  
Wide Area ◽  
Protection And Control ◽  
And Control

The renewed quest for situational awareness in power systems has brought about the use of digital signal processing of power system measurements, and the transmission of such data to control centres via communication networks. At the control centres, power system stability algorithms are executed to provide monitoring, protection, and control in order to prevent blackouts. This can be achieved by upgrading the existing Supervisory Control and Data Acquisition (SCADA) systems through the deployment of newly proposed power system synchrophasor-based applications for Wide Area Monitoring, Protection, and Control (WAMPAC). However, this can only be done when there is a complete understanding of the methods and technologies associated with the communication network, message structure, and formats required. This paper presents an analysis of the IEEE C37.118 synchrophasor message framework, message formats, and data communication of synchrophasor measurements from Phasor Measurement Units (PMUs) for WAMPAC schemes in smart grids. A newly designed lab-scale testbed is implemented and used in the practical experimentation relating to this paper. Synchrophasor measurements from the PMUs are captured using a network protocol analyzer software-Wireshark, and the compliance of the synchrophasor message structures and formats captured was compared to the specifications defined in the IEEE C37.118 synchrophasor standard.

scholarly journals Data-Centric Communication Framework for Multicast IEC 61850 Routable GOOSE Messages over the WAN in Modern Power Systems

2020 ◽  
Vol 10 (3) ◽  
pp. 848 ◽  
Author(s):  
Tarek A. Youssef ◽  
Mohammad Mahmoudian Esfahani ◽  
Osama Mohammed
Keyword(s):  
Power Systems ◽  
Smart Grids ◽  
Area Network ◽  
Monitoring And Control ◽  
Wide Area Network ◽  
Iec 61850 ◽  
Control Center ◽  
Communication Framework ◽  
Data Distribution Service ◽  
Florida International University

In this paper, a data-centric communication framework is proposed for multicast routable generic object-oriented substation event (GOOSE) messages (MRGM) over the wide area network (WAN) for effective substation-to-substation (SS2SS) and substation to control center (SS2CC) communications. In this structure, the IEC 61850 GOOSE message is transmitted over the WAN using the data distribution service (DDS) as a fast, reliable, and secure data-centric communication middleware. The main feature of this framework is its multicast capability, where several authorized subscribers can receive a published message simultaneously. This can significantly improve the system monitoring and control of the protection systems in modern smart grids, where intelligent schemes can be applied. The effectiveness of the proposed platform, in terms of total end-to-end delay between participants, is evaluated through experimental results obtained from the actual hardware-based test setup developed at the Florida International University (FIU) smart grid testbed. The results demonstrate that the latency between sending and receiving a GOOSE message among participants is within its maximum time span defined by the IEC 61850-90-5 working group for communications over the WAN.

A two-stage Markov model–aided frequency-duration technique for reliability analysis of phasor measurement unit microwave communication networks

2018 ◽  
Vol 233 (3) ◽  
pp. 355-368 ◽  
Author(s):  
Bhargav Appasani ◽  
Dusmanta Kumar Mohanta
Keyword(s):  
Complex System ◽  
Communication Network ◽  
Markov Model ◽  
Communication Networks ◽  
Phasor Measurement Unit ◽  
Measurement Unit ◽  
Monitoring And Control ◽  
Phasor Measurement ◽  
Microwave Communication ◽  
And Control

The necessity for effective real-time monitoring and control, coupled with the developments in the fields of communication and sensor technologies, led to the emergence of the smart grid. The phasor measurement unit has emerged as an important sensor for the smart grid. The phasor measurement unit communication network is another crucial component which transfers the real-time sensor data measured by the phasor measurement unit to the phasor data concentrator for subsequent monitoring and control. Thus, its reliable operation is essential. The key parameters for assessment of reliability are the failure rate and the steady-state availability. This article presents a two-stage Markov model–aided frequency-duration technique for the reliability analysis of the phasor measurement unit microwave communication networks. Microwave communication network is a complex system as it requires several intermediate relaying towers or the microwave repeaters for communication feasibility. The Markov model explores the transition to the different system states and the frequency-duration approach estimates the frequency and duration of each of these states, thereby providing a simple and elegant means to compute the failure rates of a complex system. It provides a generalized expression for evaluating the systems availability and aids in diagnosing the components that are more prone to failure. Subsequently, this approach is used for the optimal placement of the phasor measurement units such that their resultant microwave communication networks are maximally available. Case study results for the Eastern power grid of India are presented to validate the credibility of the proposed approach.

scholarly journals An architecture for power substations communication networks based on SDN and virtualization paradigms

2021 ◽  
Author(s):  
Juan Felipe Botero Vega ◽  
Alexander Leal Piedrahita
Keyword(s):  
Communication Networks ◽  
Network Architecture ◽  
New Technologies ◽  
Network Virtualization ◽  
Data Communication ◽  
Electrical Energy ◽  
New Research ◽  
Grid Operation ◽  
Transmission And Distribution ◽  
Power Substations

The deployment of infrastructures related to the Smart Grid concept introduces data communication networks in the grid operation systems (control, communication, and monitoring). The implementation of data communication networks facilitates and improves the efficiency of the tasks related to the generation, transmission, and distribution of electrical energy. In turn, network management is being permeated by new technologies such as Software Defined Networking (SDN) and network virtualization, that promote automation and innovation of communication networks aiming to overcome the lack of flexibility and the difficulties to evolve that are present in current communication networks. In this context, this paper proposes a reconceptualization of the power substations communications network architecture based on the IEC 61850 standard. Here, we present a complete view of the Smart Solution for Substation Networks (S3N) architecture, which allows modeling the future power substations communication networks taking advantage of the benefits introduced by SDN and virtualization technologies. In addition, in order to provide a better understanding of the challenges arising in this area, and to generate new research interest in this field, a review of several studies oriented to determine the feasibility of incorporating SDN as a key element to improve the management and operation of the power substations communication networks is presented.

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.

scholarly journals Communication infrastructure for situational awareness enhancement in WAMS with optimal PMU placement

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Bhargav Appasani ◽  
Amitkumar Vidyakant Jha ◽  
Sunil Kumar Mishra ◽  
Abu Nasar Ghazali
Keyword(s):  
Real Time ◽  
Situational Awareness ◽  
Area Measurement ◽  
Measurement Unit ◽  
Monitoring And Control ◽  
Communication Infrastructure ◽  
Wide Area Measurement System ◽  
Digital Elevation ◽  
Elevation Model ◽  
And Control

AbstractReal time monitoring and control of a modern power system has achieved significant development since the incorporation of the phasor measurement unit (PMU). Due to the time-synchronized capabilities, PMU has increased the situational awareness (SA) in a wide area measurement system (WAMS). Operator SA depends on the data pertaining to the real-time health of the grid. This is measured by PMUs and is accessible for data analytics at the data monitoring station referred to as the phasor data concentrator (PDC). Availability of the communication system and communication delay are two of the decisive factors governing the operator SA. This paper presents a pragmatic metric to assess the operator SA and ensure optimal locations for the placement of PMUs, PDC, and the underlying communication infrastructure to increase the efficacy of operator SA. The uses of digital elevation model (DEM) data of the surface topography to determine the optimal locations for the placement of the PMU, and the microwave technology for communicating synchrophasor data is another important contribution carried out in this paper. The practical power grid system of Bihar in India is considered as a case study, and extensive simulation results and analysis are presented for validating the proposed methodology.

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