Gigabit ethernet based substation (original) (raw)

Gigabit Ethernet based substation under IEC61850 standard

2009

Communication architecture for substation automation is one of the challenging and subtle tasks to address in order to visualize the substation into digital world under the umbrella of IEC61850. Communication paradigm for substation automation demands critical importance because of two reasons; as communication arena is changing day by day so it is convenient to opt for something that is simple to deploy and incur a less cost in terms of time and asset when migration is to be considered since data-intensive applications drive the incremental demand for bandwidth as per growing need with the expansion of concerned network and last but not least the interoperability as it is one of the core constrained put by IEC61850 for substation automation. So it is viable to consider Ethernet as the most promising solution for the communication architecture of substation automation as Ethernet technology has changed the trend of communication network because of its availability, efficiency, and cost effectiveness on the other hand interoperability is assured based on the proven and highly deployed industrial Ethernet. This paper presents analysis and the crucial need for the deployment of Gigabit Ethernet in the substation and also presents how Ethernet technology can help in the substation automation as a long run solution in the changing arena of communication as Ethernet is one of the most pervasive communication technologies. In the end we have performed simulations in NS-2 to prove that our suggested communication paradigm is optimal in various regards by keeping into consideration the constraints imposed by IEC61850.

A survey of communication network paradigms for substation automation

2008 IEEE International Symposium on Power Line Communications and Its Applications, 2008

In the realm of substation automation (SA), communication infrastructure plays a vital role in mediating between physical and virtual worlds of substation. Specification of data exchanges through standardized communication stacks is therefore an important issue for all substation equipment manufacturers seeking to provide vendor interoperability. Nowadays competitive electric utility marketplace, reliable and real-time information become the key factor for reliable delivery of power to the endusers, profitability of the electric utility and customer satisfaction. The operational and commercial demands of electric utilities require a high-performance data communication network that supports both existing functionalities and future operational requirements. As communication arena is changing day by day, the need for efficient and reliable communication infrastructure to address SA is evident. In this respect, a communication network constitutes the core of the SA, thus the design of cost-effective and reliable network architecture is a crucial task. Most of the existing communication networks claim to address the need of communication architecture for SA but in some regard these claims just could not fulfill the constraints imposed by highly available environment for SA. This paper presents a survey and analysis of the current state-of-the-art communication infrastructure in the SA. As Ethernet technology becomes more reliable and also widely available with fiber optical communication so this paper also examines the key issues and requirements for Ethernet in the substation environment and also opens some research challenges.

IEC61850: a Lingua Franca for Substation Automation Systems

The last few years has seen numerous studies pointing to the IEC61850 as a worthwhile international standard for substation automation systems. The standard incorporates the use of logical nodes to resolve problems related to interoperability and interchangeability in multi-vendor zone substation systems. The standard also initiated a cost-effective Generic Object Oriented Substation Event (GOOSE) messaging technology to replace the traditional copper wiring. This paper provides a synopsis of communication protocols and their development over the time. The authors elucidate core elements of telemetry communications, structures of protocols and the significance of standards for communication protocols within substation automation systems. This paper aims to endorse and publicise the IEC61850 protocol as the latest and improved communication standard opposed to other substation protocols like DNP and Modbus.

Second generation IEEE802.11N performance for IEC61850-based substation automation system

2016

As the initial scope of supporting communications inside substation automation systems, IEC 61850 was defined to be mapped on Ethernet as the layer 2 communication network technology. It is because the Ethernet is the dominant technology for the Local area network – LAN and it brings significant advantages of high bandwidth and low latency especially with the use of optics fibers at the physical layer. Consequently, Ethernet is very appropriate for the substation indoor LAN with applications that require high bandwidth e.g. measurements and time-critical functions such as protection services. However, when IEC 61850 is extended to support large-scale communication networks between substations, control the centers to substations and DERs; Ethernet is no longer a good solution. The rapid emergence of DERs, the increasing amount of electric vehicles and smart meters reveal the shortcomings of Ethernet which rest in its high set-up cost and scalability problem following the use of cable...

Analysis of an IEC 61850 based Electric Substation Communication Architecture

The ever-increasing demand for power and limitations on upgrade have led to increased operating voltages and consequently, larger and number of Substations. Sub-station Automation systems (SAS) are responsible for the protection, monitoring and control of electric equipment within an electric substation. The big evolution for SAS came with introduction of IEC 61850 standard for power utilities that provides integrated and interoperable data communications within and around Substation. In order to realize the benefits of the standard, the SAS design engineering needs to be thoughtful of practical challenges such as implementation of communication network. The success of SAS depends largely on efficient and reliable communication architecture design. In this paper, we present an analysis of the performance of communication infrastructure using the experimental set up of typical substation architecture. This set up is then used to examine sample substation architectures to determine if they meet the communication performance requirements.

Datanetworking Aspects of Power Substation Automation

2010

Abstract: The aim of this paper is to explore some aspects of utilization traditional computer networks in power substation automation. This paper is divided into two main parts. First we analyse the interconnection between IEC61850 standard, TCP/IP network stack and ethernet technologies. Second part of this paper presents proposed solution for substation automation in the Czech Republic in cooperation with the national distributor ČEPS, as Key-Words:-Substation, IEC 61850, remote access, network topology, security, network topology

Review of the Legacy and Future of IEC 61850 Protocols Encompassing Substation Automation System

Electronics

Communication protocols play a pivotal role in the substation automation system as they carry critical information related to asset control, automation, protection, and monitoring. Substation legacy protocols run the assets’ bulk data on multiple wires over long distances. These data packets pass through multiple nodes, which makes the identification of the location and type of various malfunctions a challenging and time-consuming task. As downtime of substations is of high importance from a regulatory and compliance point of view, utilities are motivated to revisit the overall scheme and redesign a new system that features flexibility, adaptability, interoperability, and high accuracy. This paper presents a comprehensive review of various legacy protocols and highlights the path forward for a new protocol laid down as per the IEC 61850 standard. The IEC 61850 protocol is expected to be user-friendly, employ fiber optics instead of conventional copper wires, facilitate the applicati...

61 IEC 61850 Communication Networks and Systems In Substations: An Overview for Users

Over the last decade, the "digitization" of the electron enterprise has grown at exponential rates. Utility, industrial, commercial, and even residential consumers are transforming all aspects of their lives into the digital domain. Moving forward, it is expected that every piece of equipment, every receptacle, every switch, and even every light bulb will possess some type of setting, monitoring and/or control. In order to be able to manage the large number of devices and to enable the various devices to communicate with one another, a new communication model was needed. That model has been developed and standardized as IEC 61850 -Communication Networks and Systems in Substations [1]. This paper looks at the needs of next generation communication systems and provides an overview of the IEC 61850 protocol and how it meets these needs.

Modernization of Electrical Substation Automation Systems Using IEC61850

IRJET, 2022

There is a need for a high-performance, flexible substation automation system (SAS) that is easy to incorporate. The increasing use of Intelligent Electronic Devices (IEDs) in substation protection, coordination, control, monitoring, metering, and testing offers interoperability and enhanced communications capabilities. The IEC Technical Committee 57 worked to create IEC 61850, an open standard for substation modelling and communications. The international adoption of the standard has grown in popularity. This article explores the use of IEC 61850 in conventional substation automation. It introduces the experience of a real SAS modernization scenario. This instance emphasizes how useful the IEC 61850 is for operating and monitoring substations.

A Paradigm Shift in Substation Engineering: IEC 61850 Approach

Procedia Technology, 2015

With the emergence of Ethernet based technology, the industry demands for substation communication protocols that are multivendor, of high speed and built mainly for substation automation. IEC 61850 are here to stay to provide methods of developing best engineering practices for substation protection, integration control, monitoring, metering and testing; all integrated in one. But with the plethora of offerings, the end users ought to be clear in their requirement to optimize the resources and cost. This calls for developing clear specification and design basis.With IEC 61850 the typical real time data are pre-modeled in an object oriented manner that are designed for fast processing. The logical nodes, containing these data, can communicate among themselves to form logical functions. The speed of above communication can be set as per the priority of the function to be executed and so it is not necessary that the datasets to reside in same devices for execution of a logical functions. For example to introduce a fifth harmonic block in transformer differential function, it need not reside in same IED. With such offerings to make it gives opportunity to design engineers to optimize the resources and design an efficient and integrated protection system. This paper is about understanding the potential of IEC 61850 and developing specification for a typical IEC 61850 based substation automation. The specification intends to bridge the gap between the vendors and end users.