Abstract

Uninterrupted electric power supply and transmission is a part of critical infrastructure for any nation’s security, economy and healthcare systems. Essential requirements for operating and managing an industrial control system is the secure and instant data transfer between control centers and generation stations or substations. This paper review the general Energy Management System architecture implemented for the Hellenic Power Transmission System. It gives a possible direction to best suited SCADA system network communication by emphasizing on the security. A brief study of the communication protocols is also presented. This work focuses on the key role of telecommunication provision for critical distributed control infrastructures. Based on the relative analysis presented in this paper directions towards a secure critical infrastructures network communications are provided. Subject Classification Numbers: 68M01, 68M10, 94A05.

Highlights

  • The electrical power network is described as a most critical infrastructure

  • This paper review the general Energy Management System architecture implemented for the Hellenic Power Transmission System

  • It should be mentioned that the tendency in modern Energy Management Systems (EMS)/Supervisory Control and Data Acquisition (SCADA) system communication framework is leading away from serial communication model to internet protocol (IP) oriented network

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Summary

Introduction

The electrical power network is described as a most critical infrastructure. The safety and the reliability of the systems and operations associate with is a major matter. Supervisory Control and Data Acquisition (SCADA) system is responsible for monitoring and controlling our critical infrastructure It is typically composed of proprietary software and hardware components designed for electric power transmission, mostly in isolated environments. This work depicts the general communication network architecture of the IPTO and presents some of the frequently used SCADA communication technologies. The overall goal of this research is to provide an overview of the urgent communication issues that are engaged in the operational power systems in order to strengthening the security of an EMS/SCADA network. There are several reports associated to networks security when SCADA systems are engaged [7, 8, 14, 13] Motivated by these works, the current paper studies some major aspects of the communication security in EMS/SCADA networks.

Communication Technologies for Power Transmission Networks
SCADA Communications
Classifications of EMS Communication
EMS Communication Security Strategies
Conclusion

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